.appveyor.yml

@@ -1,8 +1,26 @@
 image:
- - Visual Studio 2017
- 
+    - Visual Studio 2017
+
 install:
- - "nuget install TestStack.White"
- - "nuget install MSTest.TestAdapter"
- - "nuget install MSTest.TestFramework"
- - "nuget restore SketchAssistant/SketchAssistant.sln"
+    - "nuget install TestStack.White"
+    - "nuget install MSTest.TestAdapter"
+    - "nuget install MSTest.TestFramework"
+    - "nuget restore SketchAssistant/SketchAssistant.sln"
+
+before_build:
+    - ps: .\screenres.ps1
+
+artifacts:
+    - path: \SketchAssistant\GeneratedReports\
+#  - path: SketchAssistant/WhiteTests/test_input_files/whitelisted/*.svg
+#    name: whitelisted svg files for testing
+#  - path: SketchAssistant/WhiteTests/test_input_files/blacklisted/*.svg
+#    name: blacklisted svg files for testing
+
+before_test:
+    - ps: "SketchAssistant/GenerateCoverageReport.bat"
+#test:
+#don't run tests depending on [DeploymentItem] and filesystem access
+#categories:
+#    except:
+#        - FileIO

Finished Userstories/userstory13.md

@@ -1,13 +1,13 @@
-# Userstory 13 
+# Userstory 13 
  
 |**ID**|13|  
 |-|-|
-|**Name**|Start und Endpunkt anzeigen|
-|**Beschreibung**|Beim Nachzeichnen kann der Start- & Endpunkt einer nachzuzeichnenden Linie angzeigt werden.|
-|**Akzeptanzkriterium**|Sofern auf der linken Seite eine nachzeichenbare Grafik dargestellt wird, kann der Start- und Endpunkt der ersten Linie der linken Grafik an der richtigen Stelle auf der rechten Seite angezeigt werden.|
+|**Name**|Overlay Unterstützung|
+|**Beschreibung**|Als Nutzer möchte ich, dass beim Nachzeichnen, der Start- & Endpunkt einer nachzuzeichnenden Linie angzeigt werden kann, sowie bei Verwendung des Optitrack Systems ein Cursor angezeigt werden kann.|
+|**Akzeptanzkriterium**|Es ist möglich Overlay Elemente anzuzeigen und frei zu positionieren.|
 |Geschätzter Aufwand (Story Points)|2|
-|Entwickler|Martin|
-|Umgesetzt in Iteration|4|
-|Tatsächlicher Aufwand (Std.)|1|
-|Velocity (Std./Story Point)|0.5|
+|Entwickler|Martin Edlund|
+|Umgesetzt in Iteration|15|
+|Tatsächlicher Aufwand (Std.)|8|
+|Velocity (Std./Story Point)|4|
 |Bemerkungen|Keine|

Finished Userstories/userstory15.md

@@ -0,0 +1,13 @@
+# Userstory 15  
+ 
+|**ID**|15|  
+|-|-|
+|**Name**|Schöne Linien|
+|**Beschreibung**|Als Auftraggeber wünsche ich, dass die Linien die gezeichnet werden, an den Enden dünner und in der Mitte dicker sind, um einem echten Stift zu ähneln.|
+|**Akzeptanzkriterium**|Die Userstory wird akzeptiert, wenn die vom Anwender gezeichnete Line am Anfang schmaler ist, im Verlauf etwas breiter wird und am Ende wieder so schmal wie am Anfang ist.|
+|Geschätzter Aufwand (Story Points)|10|
+|Entwickler|Tim|
+|Umgesetzt in Iteration|9|
+|Tatsächlicher Aufwand (Std.)|keine|
+|Velocity (Std./Story Point)|keine|
+|Bemerkungen|Wurde durch Userstory 16 umgesetzt|

userstory16.md → Finished Userstories/userstory16.md

@@ -7,7 +7,7 @@
 |**Akzeptanzkriterium**|Die Userstory ist akzeptiert, wenn die UI eine Zeichenfläche enthält und eine Fläche zum Anzeigen von Grafiken, sowie alle vorherig verfügbare Knöpfe. Zusätzlich ist erforderlich, dass die UI statt auf WinForms auf WPF basiert. Auch sollen die Knöpfe in der Toolbar durch Symbole, statt durch Text markiert sein, und es einen Edit Button gibt in welchem zusätzlich die Funktionen vorhanden sind.|
 |Geschätzter Aufwand (Story Points)|10|
 |Entwickler|Martin Edlund|
-|Umgesetzt in Iteration|keine|
-|Tatsächlicher Aufwand (Std.)|keine|
-|Velocity (Std./Story Point)|keine|
+|Umgesetzt in Iteration|9|
+|Tatsächlicher Aufwand (Std.)|30|
+|Velocity (Std./Story Point)|3|
 |Bemerkungen|Keine|

Finished Userstories/userstory18.md

@@ -0,0 +1,13 @@
+# Userstory 18  
+ 
+|**ID**|18|  
+|-|-|
+|**Name**|Antialiasing|
+|**Beschreibung**|Als Auftraggeber möchte ich eine möglichst saubere Linie auf dem Bildschrim sehen, das heißt, dass die Kanten der Pixel geglättet werden.|
+|**Akzeptanzkriterium**|Die Breite der Linie wird an die Größe des Bildes in der rechten Picturebox angepasst. Zudem soll Antialiasing auf die Linien angewendet werden, damit diese glatte Kanten aufweisen.|
+|Geschätzter Aufwand (Story Points)|keine|
+|Entwickler|keiner|
+|Umgesetzt in Iteration|9|
+|Tatsächlicher Aufwand (Std.)|keine|
+|Velocity (Std./Story Point)|keine|
+|Bemerkungen|Wurde durch Userstory 16 gelöst|

Finished Userstories/userstory21.md

@@ -0,0 +1,13 @@
+# Userstory 21  
+ 
+|**ID**|21|  
+|-|-|
+|**Name**|InkCanvas|
+|**Beschreibung**|Bei den manuellen Tests haben sich beim zeichnen auserhalb der vorgesehnen Zeichenoberfläche Fehler ergeben. Als Programmierer benötige ich eine Oberfläche, die resistenter gegen solche Fehler ist.|
+|**Akzeptanzkriterium**|InkCanvas soll verwendet werden, um die aktuelle Linie zu zeichnen und anzuzeigen.|
+|Geschätzter Aufwand (Story Points)|5|
+|Entwickler|Tim Reischl|
+|Umgesetzt in Iteration|13|
+|Tatsächlicher Aufwand (Std.)|30|
+|Velocity (Std./Story Point)|6|
+|Bemerkungen|Keine|

Finished Userstories/userstory6.md

@@ -4,10 +4,10 @@
 |-|-|
 |**Name**|Löschfunktionalität|
 |**Beschreibung**|Man kann einen Knopf in der UI drücken um in den Löschmodus zu kommen, und um wieder aus dem Löschmodus rauszukommen. Wenn man im Löschmodus ist, kann man auf einer Leinwand im rechten Bereich gezeichnete Elemente löschen indem man auf sie klickt.|
-|**Akzeptanzkriterium**|Der Knopf für den Löschmodus kann nur gedrückt werden, wenn im rechten Bereich eine Zeichennleinwand vorhanden ist. Wenn man den Knopf drückt ohne im Löschmodus zu sein, verändert sich der Knopf erkennbar und man kommt in den Löschmodus. Drückt man den Knopf, während man im Löschmodus ist, wird der Löschmodus beendet und der Knopf bekommt wieder sein urspüngliches Aussehen. Während man im Löschmodus ist, kann man auf der Leinwand im rechten Bereich Elemente löschen, wenn der Mauszeiger sie berührt während man die Maustaste gedrückt hält. Die Elemente die man löscht verschwinden. Drückt man den Löschknopf während man in einem anderen Modus ist (z.B. Zeichenmodus) wird der andere Modus beendet und man ist im Löschmodus.|
+|**Akzeptanzkriterium**|Der Knopf für den Löschmodus kann nur gedrückt werden, wenn im rechten Bereich eine Zeichennleinwand vorhanden ist. Wenn man den Knopf drückt ohne im Löschmodus zu sein, verändert sich der Knopf erkennbar und man kommt in den Löschmodus. Drückt man den Knopf, während man im Löschmodus ist, bleibt der Knopf gleich und man ist immer noch im Löschmodus. Während man im Löschmodus ist, kann man auf der Leinwand im rechten Bereich Elemente löschen, wenn der Mauszeiger sie berührt während man die Maustaste gedrückt hält. Die Elemente die man löscht verschwinden. Drückt man den Löschknopf während man in einem anderen Modus ist (z.B. Zeichenmodus) wird der andere Modus beendet und man ist im Löschmodus.|
 |Geschätzter Aufwand (Story Points)|16|
 |Entwickler|Martin Edlund, Tim Reischl|
 |Umgesetzt in Iteration|3|
 |Tatsächlicher Aufwand (Std.)|14,5|
 |Velocity (Std./Story Point)|0,90625|
-|Bemerkungen|Keine|
+|Bemerkungen|Keine|

Finished Userstories/userstory8.md

@@ -0,0 +1,13 @@
+# Userstory 8
+
+|**ID**|8|
+|-|-|
+|**Name**|Vergleich vom gezeichneten Bild mit der Ursprungsgrafik|
+|**Beschreibung**|Ein Feature, das die vom Nutzer gezeichnete Grafik, mit der geladenen Grafik vergleicht.|
+|**Akzeptanzkriterium**|Eine Funktion bei der Ähnlichkeit der vom Nutzer gezeichneten Zeichnung und der geladenen Grafik in der UI angezeigt wird.|
+|Geschätzter Aufwand (Story Points)|10|
+|Entwickler|Martin Edlund|
+|Umgesetzt in Iteration|14|
+|Tatsächlicher Aufwand (Std.)|12.5|
+|Velocity (Std./Story Point)|1.25|
+|Bemerkungen|Keine|

LICENSE.md

@@ -1,674 +0,0 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
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-  12. No Surrender of Others' Freedom.
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-to collect a royalty for further conveying from those to whom you convey
-the Program, the only way you could satisfy both those terms and this
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-  13. Use with the GNU Affero General Public License.
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-permission to link or combine any covered work with a work licensed
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-  14. Revised Versions of this License.
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-    Copyright (C) <year>  <name of author>
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-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
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-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
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-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
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-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<https://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<https://www.gnu.org/licenses/why-not-lgpl.html>.

SketchAssistant/.gitignore

@@ -0,0 +1,3 @@
+/GeneratedReports/
+!*.ico
+!*.svg

SketchAssistant/GenerateCoverageReport.bat

@@ -0,0 +1,25 @@
+if not exist "%~dp0GeneratedReports" mkdir "%~dp0GeneratedReports"
+
+for /d %%a in (
+  "%~dp0\packages\OpenCover.*"
+) do set "openCoverFolder=%%~fa\"
+
+for /d %%a in (
+  "%~dp0\packages\Microsoft.TestPlatform.*"
+) do set "microPlat=%%~fa\"
+
+for /d %%a in (
+  "%~dp0\packages\ReportGenerator.*"
+) do set "repGen=%%~fa\"
+
+"%openCoverFolder%\tools\OpenCover.Console.exe" ^
+-register:user ^
+-target:"%microPlat%\tools\net451\Common7\IDE\Extensions\TestPlatform\vstest.console.exe" ^
+-targetargs:"%~dp0\WhiteTests\bin\Debug\WhiteTests.dll" ^
+-filter:"+[SketchAssistantWPF*]*" ^
+-mergebyhash ^
+-output:"%~dp0\GeneratedReports\opencovertests.xml"
+
+"%repGen%\tools\net47\ReportGenerator.exe" ^
+-reports:"%~dp0\GeneratedReports\opencovertests.xml" ^
+-targetdir:"%~dp0\GeneratedReports\ReportGeneratorOutput"

SketchAssistant/SketchAssistant.sln

@@ -7,20 +7,35 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SketchAssistantWPF", "Sketc
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WhiteTests", "WhiteTests\WhiteTests.csproj", "{EB09C624-91F2-465F-825B-559BF7A7D5CB}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "CoverageTools", "CoverageTools", "{A179F8A5-FBEB-4DBB-8AF4-DD1B5C714A8F}"
+	ProjectSection(SolutionItems) = preProject
+		GenerateCoverageReport.bat = GenerateCoverageReport.bat
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
+		Debug|x86 = Debug|x86
 		Release|Any CPU = Release|Any CPU
+		Release|x86 = Release|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{EE53AE79-2AA0-4F43-9638-1789B189D5C3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{EE53AE79-2AA0-4F43-9638-1789B189D5C3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EE53AE79-2AA0-4F43-9638-1789B189D5C3}.Debug|x86.ActiveCfg = Debug|x86
+		{EE53AE79-2AA0-4F43-9638-1789B189D5C3}.Debug|x86.Build.0 = Debug|x86
 		{EE53AE79-2AA0-4F43-9638-1789B189D5C3}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{EE53AE79-2AA0-4F43-9638-1789B189D5C3}.Release|Any CPU.Build.0 = Release|Any CPU
+		{EE53AE79-2AA0-4F43-9638-1789B189D5C3}.Release|x86.ActiveCfg = Release|x86
+		{EE53AE79-2AA0-4F43-9638-1789B189D5C3}.Release|x86.Build.0 = Release|x86
 		{EB09C624-91F2-465F-825B-559BF7A7D5CB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{EB09C624-91F2-465F-825B-559BF7A7D5CB}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EB09C624-91F2-465F-825B-559BF7A7D5CB}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{EB09C624-91F2-465F-825B-559BF7A7D5CB}.Debug|x86.Build.0 = Debug|Any CPU
 		{EB09C624-91F2-465F-825B-559BF7A7D5CB}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{EB09C624-91F2-465F-825B-559BF7A7D5CB}.Release|Any CPU.Build.0 = Release|Any CPU
+		{EB09C624-91F2-465F-825B-559BF7A7D5CB}.Release|x86.ActiveCfg = Release|Any CPU
+		{EB09C624-91F2-465F-825B-559BF7A7D5CB}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

SketchAssistant/SketchAssistantWPF/App.xaml

@@ -2,7 +2,8 @@
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:local="clr-namespace:SketchAssistantWPF"
-             StartupUri="MainWindow.xaml">
+             StartupUri="MainWindow.xaml"
+             ShutdownMode="OnMainWindowClose">
     <Application.Resources>
          
     </Application.Resources>

SketchAssistant/SketchAssistantWPF/CustomCanvas.cs

@@ -1,18 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Windows.Automation.Peers;
-using System.Windows.Controls;
-
-namespace SketchAssistantWPF
-{
-    public class CustomCanvas : Canvas
-    {
-        protected override AutomationPeer OnCreateAutomationPeer()
-        {
-            return new FrameworkElementAutomationPeer(this);
-        }
-    }
-}

SketchAssistant/SketchAssistantWPF/FileImporter.cs

@@ -1,5 +1,7 @@
 using System;
 using System.Collections.Generic;
+//using System.Drawing;
+using System.Globalization;
 using System.Windows;
 using System.Linq;
 using System.Text;
@@ -10,6 +12,32 @@ namespace SketchAssistantWPF
 {
     public class FileImporter
     {
+
+        /// <summary>
+        /// scale factor for coordinates of svg file
+        /// </summary>
+        double scale;
+
+        /// <summary>
+        /// line pointer for the current svg document
+        /// </summary>
+        int i;
+
+        /// <summary>
+        /// array containing all characters interpreted as whitespaces which seperate words/tokens in the input file
+        /// </summary>
+        readonly char[] whitespaces = new char[] { ' ', ',' };
+
+        /// <summary>
+        /// number of points to create along the outline of an ellipse, divisible by 4
+        /// </summary>
+        readonly int samplingRateEllipse = 12;
+
+        /// <summary>
+        /// number of points to create on a bezier curve, including start and end point (even number will result in "flat" bezier curves, uneven number in "pointed" ones)
+        /// </summary>
+        readonly int samplingRateBezier = 101;
+
         /// <summary>
         /// parses a drawing consisting of line objects, given as a file in the application specific .isad format
         /// </summary>
@@ -27,7 +55,6 @@ namespace SketchAssistantWPF
         /// <returns>the width and height of the left canvas and the parsed picture as a list of lines</returns>
         private Tuple<int, int, List<InternalLine>> ParseISADInput(String[] allLines)
         {
-
             if (allLines.Length == 0)
             {
                 throw new FileImporterException("file is empty", "", -1);
@@ -40,10 +67,9 @@ namespace SketchAssistantWPF
             {
                 throw new FileImporterException("unterminated drawing definition", ".isad files have to end with the 'enddrawing' token", allLines.Length);
             }
-
             Tuple<int, int> dimensions = ParseISADHeader(allLines);
             List<InternalLine> picture = ParseISADBody(allLines, dimensions.Item1, dimensions.Item2);
-            
+
             return new Tuple<int, int, List<InternalLine>>(dimensions.Item1, dimensions.Item2, picture);
         }
 
@@ -75,12 +101,9 @@ namespace SketchAssistantWPF
         /// <returns>the parsed picture as a list of lines</returns>
         private List<InternalLine> ParseISADBody(String[] allLines, int width, int height)
         {
-
             String lineStartString = "line";
             String lineEndString = "endline";
-
             List<InternalLine> drawing = new List<InternalLine>();
-
             //number of the line currently being parsed, enumeration starting at 0, body starts at the third line, therefore lin number 2
             int i = 2;
             //parse 'line' token and complete line definition
@@ -140,5 +163,1525 @@ namespace SketchAssistantWPF
             return ParseISADInput(allLines);
         }
 
+        /// <summary>
+        /// parses a svg drawing, given as a .svg file
+        /// <para />several severe restrictions to the svg standard apply:
+        /// <para /> - width and heigth values must be integers
+        /// <para /> - the supported svg elements to be drawn must be placed on top level directly inside the 'svg' tag
+        /// <para /> - except for the global 'svg' tag, no hierarchical elements (elements which contain other svg elements) may exist. in other words: after an opening element tag no other opening element tag may occur before the closing tag of this element.
+        /// <para /> - lines in front of the (single) opening and after the (single) closing global svg tag will be ignored during parsing
+        /// <para /> - unsupported svg elements on top level will be ignored during parsing
+        /// <para /> - the input file must not contain empty lines
+        /// <para /> - all input files have to be manually tested and approved for use with this program by a developer or otherwise entitled personnel, otherwise no guarantee about correct and error-free parsing will be given
+        /// </summary>
+        /// <param name="fileName">the path of the input file</param>
+        /// <returns>the width and height of the left canvas and the parsed picture as a list of lines</returns>
+        public Tuple<int, int, List<InternalLine>> ParseSVGInputFile(String fileName, int windowWidth, int windowHeight)
+        {
+            return ParseSVGInput(System.IO.File.ReadAllLines(fileName), windowWidth, windowHeight);
+        }
+
+        /// <summary>
+        /// parses a svg drawing, given as the content of a .svg file, seperated into lines
+        /// </summary>
+        /// <param name="allLines">an array holding all lines of the input file</param>
+        /// <returns>the width and height of the left canvas and the parsed picture as a list of lines</returns>
+        private Tuple<int, int, List<InternalLine>> ParseSVGInput(String[] allLines, double windowWidth, double windowHeight)
+        {
+            i = 0; //reset line pointer
+            if (allLines.Length == 0) //check for empty file
+            {
+                throw new FileImporterException("file is empty", "", -1);
+            }
+            var sizedef = ParseSVGHeader(allLines); //parse svg file header and get internal coordinate range
+            i++;
+            int width; //width of the resulting picture in pixels
+            int height; //height of the resulting picture in pixels
+            if (windowWidth != 0 && windowHeight != 0)
+            {
+                if (windowWidth / windowHeight > sizedef.Item1 / sizedef.Item2) //height dominant, width has to be smaller than drawing window to preserve xy-scale
+                {
+                    scale = windowHeight / sizedef.Item2;
+                    height = (int)Math.Round(windowHeight);
+                    width = (int)Math.Round(scale * sizedef.Item1);
+                }
+                else //width dominant, height has to be smaller than drawing window to preserve xy-scale
+                {
+                    scale = windowWidth / sizedef.Item1;
+                    width = (int)Math.Round(windowWidth);
+                    height = (int)Math.Round(scale * sizedef.Item2);
+                }
+            }
+            else
+            {
+                scale = 1;
+                width = sizedef.Item1;
+                height = sizedef.Item2;
+            }
+            for (int j = 0; j < allLines.Length; j++)
+            {
+                allLines[j] = allLines[j].Trim(whitespaces);
+            }
+            List<InternalLine> picture = ParseSVGBody(allLines); //parse whole svg drawing into list of lines
+            return new Tuple<int, int, List<InternalLine>>(width, height, picture);
+        }
+
+        /// <summary>
+        /// parses the svg file header and returns the internal coordinate range of this drawing, and iterates i to point to the start of svg element definitions
+        /// </summary>
+        /// <param name="allLines">an array holding all lines of the input file</param>
+        /// <returns>the internal coordinate range of this drawing</returns>
+        private Tuple<int, int> ParseSVGHeader(String[] allLines)
+        {
+            while (!allLines[i].StartsWith("<svg")) //skip non-relevant metadata at start of svg file
+            {
+                i++;
+            }
+            String[] currentLine = allLines[i].Split(' ');
+            int width = -1;
+            int height = -1;
+            for (int j = 0; j < currentLine.Length; j++)
+            {
+                if (currentLine[j].StartsWith("width"))
+                {
+                    width = Convert.ToInt32(ParseSingleSVGAttribute(currentLine[j]));
+                }
+                else if (currentLine[j].StartsWith("height"))
+                {
+                    height = Convert.ToInt32(ParseSingleSVGAttribute(currentLine[j]));
+                }
+            }
+            if (width == -1)
+            {
+                throw new FileImporterException("missing width definition in SVG header", "the header should contain the \"width=...\" attribute", i + 1);
+            }
+            if (height == -1)
+            {
+                throw new FileImporterException("missing height definition in SVG header", "the header should contain the \"height=...\" attribute", i + 1);
+            }
+            return new Tuple<int, int>(width, height);
+        }
+
+        /// <summary>
+        /// parses all relevant svg element definitions and skips the ones not representable by the sketch assistant
+        /// </summary>
+        /// <param name="allLines">an array holding all lines of the input file</param>
+        /// <returns>the parsed picture as a list of lines</returns>
+        private List<InternalLine> ParseSVGBody(String[] allLines)
+        {
+            List<InternalLine> picture = new List<InternalLine>();
+            while (!allLines[i].StartsWith("</svg"))
+            {
+                List<InternalLine> element = ParseSingleSVGElement(allLines);
+                if (element != null)
+                {
+                    picture.AddRange(element);
+                }
+                i++;
+                if (i > allLines.Length - 1) throw new FileImporterException("unterminated input file: missing </svg> tag", "the file must not contain empty lines", i + 1);
+            }
+            return picture;
+        }
+
+        /// <summary>
+        /// parses one toplevel svg element
+        /// </summary>
+        /// <param name="allLines">an array holding all lines of the input file</param>
+        /// <returns>the parsed Element as a list of lines</returns>
+        private List<InternalLine> ParseSingleSVGElement(string[] allLines)
+        {
+            String[] currentElement = GetCurrentElement(allLines);
+            return ParseSingleLineSVGElement(currentElement);
+        }
+
+        /// <summary>
+        /// parses a single toplevel svg element only taking one line
+        /// </summary>
+        /// <param name="allLines">an array holding all lines of the input file</param>
+        /// <returns>the parsed element as a Line object, or null if the element is not supported</returns>
+        private List<InternalLine> ParseSingleLineSVGElement(string[] currentElement)
+        {
+            List<Point> points = null;
+            List<InternalLine> element = null;
+            switch (currentElement[0])
+            {
+                case "<rect":
+                    points = ParseRect(currentElement);
+                    break;
+                case "<circle":
+                    points = ParseCircle(currentElement);
+                    break;
+                case "<ellipse":
+                    points = ParseEllipse(currentElement);
+                    break;
+                case "<line":
+                    points = ParseLine(currentElement);
+                    break;
+                case "<polyline":
+                    points = ParsePolyline(currentElement);
+                    break;
+                case "<polygon":
+                    points = ParsePolygon(currentElement);
+                    break;
+                case "<path":
+                    element = ParsePath(currentElement);
+                    break;
+                default: //unsupported svg element
+                    return null; //simply ignore
+            }
+            if (element == null)
+            {
+                element = new List<InternalLine>();
+                element.Add(new InternalLine(points));
+            }
+            return element;
+        }
+
+        /// <summary>
+        /// parses a rectangle definition into a List of Points representing a single line around the rectangle (in clockwise direction), ignoring rounded corners
+        /// </summary>
+        /// <param name="currentElement">the definition of the element as whitespace seperated String[]</param>
+        /// <returns>the parsed element as a List of Points</returns>
+        private List<Point> ParseRect(string[] currentElement)
+        {
+            double x = 0;
+            double y = 0;
+            double w = 0;
+            double h = 0;
+            double rx = 0;
+            double ry = 0;
+            for (int j = 0; j < currentElement.Length; j++)
+            {
+                if (currentElement[j].StartsWith("x="))
+                {
+                    x = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+                else if (currentElement[j].StartsWith("y="))
+                {
+                    y = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+                else if (currentElement[j].StartsWith("width="))
+                {
+                    w = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+                else if (currentElement[j].StartsWith("height="))
+                {
+                    h = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+                else if (currentElement[j].StartsWith("rx="))
+                {
+                    rx = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+                else if (currentElement[j].StartsWith("ry="))
+                {
+                    ry = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+            }
+            List<Point> rect = new List<Point>();
+            rect.Add(ScaleAndCreatePoint(x, y));
+            rect.Add(ScaleAndCreatePoint(x + w, y));
+            rect.Add(ScaleAndCreatePoint(x + w, y + h));
+            rect.Add(ScaleAndCreatePoint(x, y + h));
+            rect.Add(ScaleAndCreatePoint(x, y));
+            return rect;
+        }
+
+        /// <summary>
+        /// parses a circle definition into a List of Points
+        /// </summary>
+        /// <param name="currentElement">the definition of the element as whitespace seperated String[]</param>
+        /// <returns>the parsed element as a List of Points</returns>
+        private List<Point> ParseCircle(string[] currentElement)
+        {
+            double x = 0;
+            double y = 0;
+            double r = 0;
+            for (int j = 0; j < currentElement.Length; j++)
+            {
+                if (currentElement[j].StartsWith("cx="))
+                {
+                    x = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+                else if (currentElement[j].StartsWith("cy="))
+                {
+                    y = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+                else if (currentElement[j].StartsWith("r="))
+                {
+                    r = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+            }
+            return SampleEllipse(x, y, r, r);
+        }
+
+        /// <summary>
+        /// parses a ellipse definition into a List of Points
+        /// </summary>
+        /// <param name="currentElement">the definition of the element as whitespace seperated String[]</param>
+        /// <returns>the parsed element as a List of Points</returns>
+        private List<Point> ParseEllipse(string[] currentElement)
+        {
+            double x = 0;
+            double y = 0;
+            double rx = 0;
+            double ry = 0;
+            for (int j = 0; j < currentElement.Length; j++)
+            {
+                if (currentElement[j].StartsWith("cx="))
+                {
+                    x = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+                else if (currentElement[j].StartsWith("cy="))
+                {
+                    y = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+                else if (currentElement[j].StartsWith("rx="))
+                {
+                    rx = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+                else if (currentElement[j].StartsWith("ry="))
+                {
+                    ry = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+            }
+            return SampleEllipse(x, y, rx, ry);
+        }
+
+        /// <summary>
+        /// parses a line definition into a List of two Points
+        /// </summary>
+        /// <param name="currentElement">the definition of the element as whitespace seperated String[]</param>
+        /// <returns>the parsed element as a List of Points</returns>
+        private List<Point> ParseLine(string[] currentElement)
+        {
+            double x1 = 0;
+            double y1 = 0;
+            double x2 = 0;
+            double y2 = 0;
+            for (int j = 0; j < currentElement.Length; j++)
+            {
+                if (currentElement[j].StartsWith("x1="))
+                {
+                    x1 = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+                else if (currentElement[j].StartsWith("y1="))
+                {
+                    y1 = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+                else if (currentElement[j].StartsWith("x2="))
+                {
+                    x2 = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+                else if (currentElement[j].StartsWith("y2="))
+                {
+                    y2 = Convert.ToDouble(ParseSingleSVGAttribute(currentElement[j]), CultureInfo.InvariantCulture);
+                }
+            }
+            List<Point> line = new List<Point>();
+            line.Add(ScaleAndCreatePoint(x1, y1));
+            line.Add(ScaleAndCreatePoint(x2, y2));
+            return line;
+        }
+
+        /// <summary>
+        /// parses a polyline definition into a List of Points
+        /// </summary>
+        /// <param name="currentElement">the definition of the element as whitespace seperated String[]</param>
+        /// <returns>the parsed element as a List of Points</returns>
+        private List<Point> ParsePolyline(string[] currentElement)
+        {
+            String[] points = null;
+            for (int j = 0; j < currentElement.Length; j++)
+            {
+                if (currentElement[j].StartsWith("points="))
+                {
+                    List<String> pointDefs = new List<string>();
+                    pointDefs.Add(currentElement[j].Substring(8)); //parse first point coordinates by removing 'points="'
+                    j++;
+                    while (!currentElement[j].EndsWith("\""))
+                    {
+                        pointDefs.Add(currentElement[j]); //parse intermediate point coordinates
+                        j++;
+                    }
+                    pointDefs.Add(currentElement[j].Trim('"')); //parse last point coordinates by removing '"'
+                    points = pointDefs.ToArray();
+                }
+            }
+            List<Point> polyline = new List<Point>();
+            for (int k = 0; k < points.Length - 1; k += 2)
+            {
+                polyline.Add(ScaleAndCreatePoint(Convert.ToDouble(points[k], CultureInfo.InvariantCulture), Convert.ToDouble(points[k + 1], CultureInfo.InvariantCulture)));
+            }
+            return polyline;
+        }
+
+        /// <summary>
+        /// parses a polygon definition into a List of Points
+        /// </summary>
+        /// <param name="currentElement">the definition of the element as whitespace seperated String[]</param>
+        /// <returns>the parsed element as a List of Points</returns>
+        private List<Point> ParsePolygon(string[] currentElement)
+        {
+            String[] points = null;
+            for (int j = 0; j < currentElement.Length; j++)
+            {
+                if (currentElement[j].StartsWith("points="))
+                {
+                    List<String> pointDefs = new List<string>();
+                    pointDefs.Add(currentElement[j].Substring(8)); //parse first point coordinates by removing 'points="'
+                    j++;
+                    while (!currentElement[j].EndsWith("\""))
+                    {
+                        pointDefs.Add(currentElement[j]); //parse intermediate point coordinates
+                        j++;
+                    }
+                    pointDefs.Add(currentElement[j].Trim('"')); //parse last point coordinates by removing '"'
+                    points = pointDefs.ToArray();
+                }
+            }
+            List<Point> polygon = new List<Point>();
+            for (int k = 0; k < points.Length - 1; k += 2)
+            {
+                polygon.Add(ScaleAndCreatePoint(Convert.ToDouble(points[k], CultureInfo.InvariantCulture), Convert.ToDouble(points[k + 1], CultureInfo.InvariantCulture)));
+            }
+            polygon.Add(ScaleAndCreatePoint(Convert.ToDouble(points[0], CultureInfo.InvariantCulture), Convert.ToDouble(points[1], CultureInfo.InvariantCulture))); //close polygon
+            return polygon;
+        }
+
+        /// <summary>
+        /// parses a path definition into a List of Points
+        /// </summary>
+        /// <param name="currentElement">the definition of the element as whitespace seperated String[]</param>
+        /// <returns>the parsed element as a List of Points</returns>
+        private List<InternalLine> ParsePath(string[] currentElement)
+        {
+            List<String> pathElements = new List<string>();
+            for (int j = 0; j < currentElement.Length; j++)
+            {
+                if (currentElement[j].StartsWith("d="))
+                {
+                    pathElements.Add(currentElement[j].Substring(3)); //parse first path element by removing 'd="'
+                    j++;
+                    while (!currentElement[j].EndsWith("\""))
+                    {
+                        pathElements.Add(currentElement[j]); //parse intermediate path element
+                        j++;
+                    }
+                    pathElements.Add(currentElement[j].Trim('"')); //parse last path element by removing '"'
+                }
+            }
+            NormalizePathDeclaration(pathElements); //expand path data to always explicitly have the command descriptor in front of the appropriate number of arguments and to seperate command descriptors, coordinates and other tokens always into seperate list elements (equivalent to seperation with spaces in the input file, but svg allows also for comma as a seperator, and for omitting seperators where possible without losing information (refer to svg grammer) to reduce file size
+            List<InternalLine> element = new List<InternalLine>();
+            List<Point> currentLine = new List<Point>();
+            double lastBezierControlPointX = 0;
+            double lastBezierControlPointY = 0;
+            double lastPositionX;
+            double lastPositionY;
+            double initialPositionX = -1;
+            double initialPositionY = -1;
+            bool newSubpath = true;
+            Tuple<List<Point>, double, double> valuesArc; //list of points, new values for: lastPositionX, lastPositionY
+            Tuple<List<Point>, double, double, double, double> valuesBezierCurve; //list of points, new values for: lastPositionX, lastPositionY, lastBezierControlPointX, lastBezierControlPointY
+            var valuesSinglePoint = Parse_M_L(pathElements); //new point, new values for: lastPositionX, lastPositionY
+            currentLine = new List<Point>();
+            currentLine.Add(valuesSinglePoint.Item1);
+            lastPositionX = valuesSinglePoint.Item2;
+            lastPositionY = valuesSinglePoint.Item3;
+            String currentToken;
+            while (!(pathElements.Count == 0))
+            {
+                if (newSubpath)
+                {
+                    initialPositionX = lastPositionX; //update buffers for coordinates of first point of active subpath
+                    initialPositionY = lastPositionY;
+                    newSubpath = false;
+                }
+                currentToken = pathElements.First();
+                if (currentToken.Equals("M"))
+                {
+                    element.Add(new InternalLine(currentLine)); //save current line
+                    valuesSinglePoint = Parse_M_L(pathElements);
+                    currentLine = new List<Point>(); //create new empty line
+                    currentLine.Add(valuesSinglePoint.Item1); //add point to new line
+                    lastPositionX = valuesSinglePoint.Item2; //save last point coordinates
+                    lastPositionY = valuesSinglePoint.Item3; //save last point coordinates
+                }
+                else if (currentToken.Equals("m"))
+                {
+                    element.Add(new InternalLine(currentLine)); //save current line
+                    valuesSinglePoint = Parse_m_l(pathElements, lastPositionX, lastPositionY);
+                    currentLine = new List<Point>(); //create new empty line
+                    currentLine.Add(valuesSinglePoint.Item1); //add point to new line
+                    lastPositionX = valuesSinglePoint.Item2; //save last point coordinates
+                    lastPositionY = valuesSinglePoint.Item3; //save last point coordinates
+                }
+                else if (currentToken.Equals("Z") || currentToken.Equals("z"))
+                {
+                    valuesSinglePoint = Parse_Z(pathElements, initialPositionX, initialPositionY); //method call only used for uniform program structure... only real effect of method is to consume one token
+                    newSubpath = true;
+                    currentLine.Add(valuesSinglePoint.Item1); //add point to old line
+                    element.Add(new InternalLine(currentLine)); //save current line
+                    currentLine = new List<Point>(); //create new empty line
+                    currentLine.Add(valuesSinglePoint.Item1); //add point to new line
+                    lastPositionX = valuesSinglePoint.Item2; //save last point coordinates
+                    lastPositionY = valuesSinglePoint.Item3; //save last point coordinates
+                }
+                else if (currentToken.Equals("L"))
+                {
+                    valuesSinglePoint = Parse_M_L(pathElements);
+                    currentLine.Add(valuesSinglePoint.Item1); //add point to new line
+                    lastPositionX = valuesSinglePoint.Item2; //save last point coordinates
+                    lastPositionY = valuesSinglePoint.Item3; //save last point coordinates
+                }
+                else if (currentToken.Equals("l"))
+                {
+                    valuesSinglePoint = Parse_m_l(pathElements, lastPositionX, lastPositionY);
+                    currentLine.Add(valuesSinglePoint.Item1); //add point to new line
+                    lastPositionX = valuesSinglePoint.Item2; //save last point coordinates
+                    lastPositionY = valuesSinglePoint.Item3; //save last point coordinates
+                }
+                else if (currentToken.Equals("H"))
+                {
+                    valuesSinglePoint = Parse_H(pathElements, lastPositionY);
+                    currentLine.Add(valuesSinglePoint.Item1); //add point to new line
+                    lastPositionX = valuesSinglePoint.Item2; //save last point coordinates
+                    lastPositionY = valuesSinglePoint.Item3; //save last point coordinates
+                }
+                else if (currentToken.Equals("h"))
+                {
+                    valuesSinglePoint = Parse_h(pathElements, lastPositionX, lastPositionY);
+                    currentLine.Add(valuesSinglePoint.Item1); //add point to new line
+                    lastPositionX = valuesSinglePoint.Item2; //save last point coordinates
+                    lastPositionY = valuesSinglePoint.Item3; //save last point coordinates
+                }
+                else if (currentToken.Equals("V"))
+                {
+                    valuesSinglePoint = Parse_V(pathElements, lastPositionX);
+                    currentLine.Add(valuesSinglePoint.Item1); //add point to new line
+                    lastPositionX = valuesSinglePoint.Item2; //save last point coordinates
+                    lastPositionY = valuesSinglePoint.Item3; //save last point coordinates
+                }
+                else if (currentToken.Equals("v"))
+                {
+                    valuesSinglePoint = Parse_v(pathElements, lastPositionX, lastPositionY);
+                    currentLine.Add(valuesSinglePoint.Item1); //add point to new line
+                    lastPositionX = valuesSinglePoint.Item2; //save last point coordinates
+                    lastPositionY = valuesSinglePoint.Item3; //save last point coordinates
+                }
+                else if (currentToken.Equals("C"))
+                {
+                    valuesBezierCurve = Parse_C(pathElements, lastPositionX, lastPositionY);
+                    currentLine.AddRange(valuesBezierCurve.Item1); //add point to new line
+                    lastPositionX = valuesBezierCurve.Item2; //save last point coordinates
+                    lastPositionY = valuesBezierCurve.Item3; //save last point coordinates
+                    lastBezierControlPointX = valuesBezierCurve.Item4; //save last bezier control point coordinates
+                    lastBezierControlPointY = valuesBezierCurve.Item5; //save last bezier control point coordinates
+                }
+                else if (currentToken.Equals("c"))
+                {
+                    valuesBezierCurve = Parse_C(pathElements, lastPositionX, lastPositionY);
+                    currentLine.AddRange(valuesBezierCurve.Item1); //add point to new line
+                    lastPositionX = valuesBezierCurve.Item2; //save last point coordinates
+                    lastPositionY = valuesBezierCurve.Item3; //save last point coordinates
+                    lastBezierControlPointX = valuesBezierCurve.Item4; //save last bezier control point coordinates
+                    lastBezierControlPointY = valuesBezierCurve.Item5; //save last bezier control point coordinates
+                }
+                else if (currentToken.Equals("S"))
+                {
+                    valuesBezierCurve = Parse_S(pathElements, lastPositionX, lastPositionY, lastBezierControlPointX, lastBezierControlPointY);
+                    currentLine.AddRange(valuesBezierCurve.Item1); //add point to new line
+                    lastPositionX = valuesBezierCurve.Item2; //save last point coordinates
+                    lastPositionY = valuesBezierCurve.Item3; //save last point coordinates
+                    lastBezierControlPointX = valuesBezierCurve.Item4; //save last bezier control point coordinates
+                    lastBezierControlPointY = valuesBezierCurve.Item5; //save last bezier control point coordinates
+                }
+                else if (currentToken.Equals("s"))
+                {
+                    valuesBezierCurve = Parse_s(pathElements, lastPositionX, lastPositionY, lastBezierControlPointX, lastBezierControlPointY);
+                    currentLine.AddRange(valuesBezierCurve.Item1); //add point to new line
+                    lastPositionX = valuesBezierCurve.Item2; //save last point coordinates
+                    lastPositionY = valuesBezierCurve.Item3; //save last point coordinates
+                    lastBezierControlPointX = valuesBezierCurve.Item4; //save last bezier control point coordinates
+                    lastBezierControlPointY = valuesBezierCurve.Item5; //save last bezier control point coordinates
+                }
+                else if (currentToken.Equals("Q"))
+                {
+                    valuesBezierCurve = Parse_Q(pathElements, lastPositionX, lastPositionY);
+                    currentLine.AddRange(valuesBezierCurve.Item1); //add point to new line
+                    lastPositionX = valuesBezierCurve.Item2; //save last point coordinates
+                    lastPositionY = valuesBezierCurve.Item3; //save last point coordinates
+                    lastBezierControlPointX = valuesBezierCurve.Item4; //save last bezier control point coordinates
+                    lastBezierControlPointY = valuesBezierCurve.Item5; //save last bezier control point coordinates
+                }
+                else if (currentToken.Equals("q"))
+                {
+                    valuesBezierCurve = Parse_q(pathElements, lastPositionX, lastPositionY);
+                    currentLine.AddRange(valuesBezierCurve.Item1); //add point to new line
+                    lastPositionX = valuesBezierCurve.Item2; //save last point coordinates
+                    lastPositionY = valuesBezierCurve.Item3; //save last point coordinates
+                    lastBezierControlPointX = valuesBezierCurve.Item4; //save last bezier control point coordinates
+                    lastBezierControlPointY = valuesBezierCurve.Item5; //save last bezier control point coordinates
+                }
+                else if (currentToken.Equals("T"))
+                {
+                    valuesBezierCurve = Parse_T(pathElements, lastPositionX, lastPositionY, lastBezierControlPointX, lastBezierControlPointY);
+                    currentLine.AddRange(valuesBezierCurve.Item1); //add point to new line
+                    lastPositionX = valuesBezierCurve.Item2; //save last point coordinates
+                    lastPositionY = valuesBezierCurve.Item3; //save last point coordinates
+                    lastBezierControlPointX = valuesBezierCurve.Item4; //save last bezier control point coordinates
+                    lastBezierControlPointY = valuesBezierCurve.Item5; //save last bezier control point coordinates
+                }
+                else if (currentToken.Equals("t"))
+                {
+                    valuesBezierCurve = Parse_t(pathElements, lastPositionX, lastPositionY, lastBezierControlPointX, lastBezierControlPointY);
+                    currentLine.AddRange(valuesBezierCurve.Item1); //add point to new line
+                    lastPositionX = valuesBezierCurve.Item2; //save last point coordinates
+                    lastPositionY = valuesBezierCurve.Item3; //save last point coordinates
+                    lastBezierControlPointX = valuesBezierCurve.Item4; //save last bezier control point coordinates
+                    lastBezierControlPointY = valuesBezierCurve.Item5; //save last bezier control point coordinates
+                }
+                else if (currentToken.Equals("A"))
+                {
+                    valuesArc = Parse_A(pathElements, lastPositionX, lastPositionY);
+                    currentLine.AddRange(valuesArc.Item1); //add points to new line
+                    lastPositionX = valuesArc.Item2; //save last point coordinates
+                    lastPositionY = valuesArc.Item3; //save last point coordinates
+                }
+                else if (currentToken.Equals("a"))
+                {
+                    valuesArc = Parse_a(pathElements, lastPositionX, lastPositionY);
+                    currentLine.AddRange(valuesArc.Item1); //add points to new line
+                    lastPositionX = valuesArc.Item2; //save last point coordinates
+                    lastPositionY = valuesArc.Item3; //save last point coordinates
+                }
+                else
+                {
+                    throw new FileImporterException("invalid path argument or path data formatting: read argument " + pathElements.First(), "valid path arguments are: {M,Z,L,H,V,C,S,Q,T,A} in upper and lower case", i + 1);
+                }
+            }
+            if (currentLine.Count > 1)
+            {
+                element.Add(new InternalLine(currentLine)); //save current line
+            }
+            return element;
+        }
+
+        /// <summary>
+        /// normalizes the declaration of the data field of a path declaration by splitting coordinates still connected by a semicolon and command descriptors which are directly attached to the following coordinate into seperate tokens, also repeats omitted command descriptor tokens when the same command is repeated multiple times
+        /// </summary>
+        /// <param name="pathElements">the list of tokens to normalize, by splitting up existing tokens and adding new command descriptor tokens</param>
+        private void NormalizePathDeclaration(List<string> pathElements)
+        {
+            Char lastCommand = 'M';
+            int argumentCounter = 0;
+            for (int j = 0; j < pathElements.Count; j++)
+            {
+                String currentElement = pathElements.ElementAt(j);
+                if (currentElement.Length != 1)
+                {
+                    if (((currentElement.First() >= 'A' && currentElement.First() <= 'Z') || (currentElement.First() >= 'a' && currentElement.First() <= 'z')) && currentElement.First() != 'e') //seperate a single command descriptor / letter
+                    {
+                        pathElements.RemoveAt(j);
+                        pathElements.Insert(j, currentElement.First() + ""); //insert letter as seperate element
+                        pathElements.Insert(j + 1, currentElement.Substring(1)); //insert rest of String at next position so it will be processed again
+                        lastCommand = currentElement.First();
+                        argumentCounter = 0;
+                    }
+                    else if ((currentElement.First() >= '0' && currentElement.First() <= '9') || currentElement.First() == '-' || currentElement.First() == '+' || currentElement.First() != 'e') //seperate a single coordinate / number
+                    {
+                        bool repeatCommandDescriptor = false;
+                        switch (lastCommand)
+                        { //check for reaching of next command with omitted command descriptor
+                            case 'M':
+                                if (argumentCounter >= 2) repeatCommandDescriptor = true;
+                                break;
+                            case 'm':
+                                if (argumentCounter >= 2) repeatCommandDescriptor = true;
+                                break;
+                            case 'L':
+                                if (argumentCounter >= 2) repeatCommandDescriptor = true;
+                                break;
+                            case 'l':
+                                if (argumentCounter >= 2) repeatCommandDescriptor = true;
+                                break;
+                            case 'V':
+                                if (argumentCounter >= 1) repeatCommandDescriptor = true;
+                                break;
+                            case 'v':
+                                if (argumentCounter >= 1) repeatCommandDescriptor = true;
+                                break;
+                            case 'H':
+                                if (argumentCounter >= 1) repeatCommandDescriptor = true;
+                                break;
+                            case 'h':
+                                if (argumentCounter >= 1) repeatCommandDescriptor = true;
+                                break;
+                            case 'C':
+                                if (argumentCounter >= 6) repeatCommandDescriptor = true;
+                                break;
+                            case 'c':
+                                if (argumentCounter >= 6) repeatCommandDescriptor = true;
+                                break;
+                            case 'S':
+                                if (argumentCounter >= 4) repeatCommandDescriptor = true;
+                                break;
+                            case 's':
+                                if (argumentCounter >= 4) repeatCommandDescriptor = true;
+                                break;
+                            case 'Q':
+                                if (argumentCounter >= 4) repeatCommandDescriptor = true;
+                                break;
+                            case 'q':
+                                if (argumentCounter >= 4) repeatCommandDescriptor = true;
+                                break;
+                            case 'T':
+                                if (argumentCounter >= 2) repeatCommandDescriptor = true;
+                                break;
+                            case 't':
+                                if (argumentCounter >= 2) repeatCommandDescriptor = true;
+                                break;
+                            case 'A':
+                                if (argumentCounter >= 7) repeatCommandDescriptor = true;
+                                break;
+                            case 'a':
+                                if (argumentCounter >= 7) repeatCommandDescriptor = true;
+                                break;
+                        }
+                        if (repeatCommandDescriptor)
+                        {
+                            pathElements.Insert(j, lastCommand + ""); //repeat command descriptor
+                            j++; //skip command descriptor (was put into active position in the list
+                            argumentCounter = 0; //reset argument counter
+                        }
+                        bool decimalPointEncountered = false;
+                        for (int k = 1; k < currentElement.Length; k++)
+                        {
+                            if (!decimalPointEncountered && currentElement.ElementAt(k) == '.') //allow up to one decimal point in numbers
+                            {
+                                decimalPointEncountered = true;
+                            }
+                            else if (!((currentElement.ElementAt(k) >= '0' && currentElement.ElementAt(k) <= '9') || currentElement.First() == '-' || currentElement.First() == '+' || currentElement.First() != 'e'))
+                            {
+                                pathElements.RemoveAt(j);
+                                pathElements.Insert(j, currentElement.Substring(0, k - 1)); //insert number as seperate element
+                                pathElements.Insert(j + 1, currentElement.Substring(k)); //insert rest of String at next position so it will be processed again
+                                break;
+                            }
+                        }
+                        argumentCounter++;
+                    }
+                    else //parse non-space seperators and skip other unsupported characters (the only other valid ones per svg standard would be weird tokens looking like format descriptors (e.g. '#xC'), these are unsopported and will likely cause an error or other inconsitencies during parsing)
+                    {
+                        for (int k = 1; k < currentElement.Length; k++)
+                        {
+                            if (((currentElement.ElementAt(k) >= '0' && currentElement.ElementAt(k) <= '9')) || currentElement.ElementAt(k) == '-' || currentElement.ElementAt(k) == '+' || (currentElement.ElementAt(k) >= 'A' && currentElement.ElementAt(k) <= 'Z') || (currentElement.ElementAt(k) >= 'a' && currentElement.ElementAt(k) <= 'z'))
+                            {
+                                pathElements.RemoveAt(j);
+                                pathElements.Insert(j + 1, currentElement.Substring(k)); //insert rest of String at next position so it will be processed again
+                                break;
+                            }
+                        }
+                    }
+                }
+                else
+                {
+                    if ((currentElement.First() >= 'A' && currentElement.First() <= 'Z') || (currentElement.First() >= 'a' && currentElement.First() <= 'z')) //update lastCommand buffer when reading single letter
+                    {
+                        lastCommand = currentElement.First();
+                        argumentCounter = 0;
+                    }
+                    else if (!(currentElement.First() >= '0' && currentElement.First() <= '9')) //not a number
+                    {
+                        pathElements.RemoveAt(j); //remove element
+                        j--; //decrement index pointer so next element will not be skipped (indices of all folowing elements just decreased by 1)
+                    }
+                    else //a single digit number
+                    {
+                        bool repeatCommandDescriptor = false;
+                        switch (lastCommand)
+                        { //check for reaching of next command with omitted command descriptor
+                            case 'M':
+                                if (argumentCounter >= 2) repeatCommandDescriptor = true;
+                                break;
+                            case 'm':
+                                if (argumentCounter >= 2) repeatCommandDescriptor = true;
+                                break;
+                            case 'L':
+                                if (argumentCounter >= 2) repeatCommandDescriptor = true;
+                                break;
+                            case 'l':
+                                if (argumentCounter >= 2) repeatCommandDescriptor = true;
+                                break;
+                            case 'V':
+                                if (argumentCounter >= 1) repeatCommandDescriptor = true;
+                                break;
+                            case 'v':
+                                if (argumentCounter >= 1) repeatCommandDescriptor = true;
+                                break;
+                            case 'H':
+                                if (argumentCounter >= 1) repeatCommandDescriptor = true;
+                                break;
+                            case 'h':
+                                if (argumentCounter >= 1) repeatCommandDescriptor = true;
+                                break;
+                            case 'C':
+                                if (argumentCounter >= 6) repeatCommandDescriptor = true;
+                                break;
+                            case 'c':
+                                if (argumentCounter >= 6) repeatCommandDescriptor = true;
+                                break;
+                            case 'S':
+                                if (argumentCounter >= 4) repeatCommandDescriptor = true;
+                                break;
+                            case 's':
+                                if (argumentCounter >= 4) repeatCommandDescriptor = true;
+                                break;
+                            case 'Q':
+                                if (argumentCounter >= 4) repeatCommandDescriptor = true;
+                                break;
+                            case 'q':
+                                if (argumentCounter >= 4) repeatCommandDescriptor = true;
+                                break;
+                            case 'T':
+                                if (argumentCounter >= 2) repeatCommandDescriptor = true;
+                                break;
+                            case 't':
+                                if (argumentCounter >= 2) repeatCommandDescriptor = true;
+                                break;
+                            case 'A':
+                                if (argumentCounter >= 7) repeatCommandDescriptor = true;
+                                break;
+                            case 'a':
+                                if (argumentCounter >= 7) repeatCommandDescriptor = true;
+                                break;
+                        }
+                        if (repeatCommandDescriptor)
+                        {
+                            pathElements.Insert(j, lastCommand + ""); //repeat command descriptor
+                            j++; //skip command descriptor (was put into active position in the list
+                            argumentCounter = 0; //reset argument counter
+                        }
+                        argumentCounter++;
+                    }
+                }
+            }
+        }
+
+        /// <summary>
+        /// parses a "closeloop" path element
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="initialPositionX">absolute x coordinate of the last initial point of this subpath</param>
+        /// <param name="initialPositionY">absolute y coordinate of the last initial point of this subpath</param>
+        /// <returns></returns>
+        private Tuple<Point, double, double> Parse_Z(List<string> pathElements, double initialPositionX, double initialPositionY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            return new Tuple<Point, double, double>(ScaleAndCreatePoint(initialPositionX, initialPositionY), initialPositionX, initialPositionY);
+        }
+
+        /// <summary>
+        /// parses a "moveto", "close loop" or "lineto" path element with absolute coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <returns>the point at the end of the move, close loop or line action and its exact, unscaled coordinates</returns>
+        private Tuple<Point, double, double> Parse_M_L(List<string> pathElements)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double x = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            return new Tuple<Point, double, double>(ScaleAndCreatePoint(x, y), x, y);
+        }
+
+        /// <summary>
+        /// parses a "moveto", "close loop" or "lineto" path element with relative coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionX">absolute x coordinate of the last active point</param>
+        /// <param name="lastPositionY">absolute y coordinate of the last active point</param>
+        /// <returns>the point at the end of the move, close loop or line action and its exact, unscaled coordinates</returns>
+        private Tuple<Point, double, double> Parse_m_l(List<string> pathElements, double lastPositionX, double lastPositionY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double x = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse relative x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse relative y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            x = lastPositionX + x; //compute absolute x coordinate
+            y = lastPositionY + y; //compute absolute y coordinate
+            return new Tuple<Point, double, double>(ScaleAndCreatePoint(x, y), x, y);
+        }
+
+        /// <summary>
+        /// parses a "horizontal lineto" path element with absolute coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionY">absolute y coordinate of the last active point</param>
+        /// <returns>the point at the end of the horizontal line action and its exact, unscaled coordinates</returns>
+        private Tuple<Point, double, double> Parse_H(List<string> pathElements, double lastPositionY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double x = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            return new Tuple<Point, double, double>(ScaleAndCreatePoint(x, lastPositionY), x, lastPositionY);
+        }
+
+        /// <summary>
+        /// parses a "horizontal lineto" path element with relative coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionX">absolute x coordinate of the last active point</param>
+        /// <param name="lastPositionY">absolute y coordinate of the last active point</param>
+        /// <returns>the point at the end of the horizontal line action and its exact, unscaled coordinates</returns>
+        private Tuple<Point, double, double> Parse_h(List<string> pathElements, double lastPositionX, double lastPositionY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double x = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse relative x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            x = lastPositionX + x; //compute absolute x coordinate
+            return new Tuple<Point, double, double>(ScaleAndCreatePoint(x, lastPositionY), x, lastPositionY);
+        }
+
+        /// <summary>
+        /// parses a "vertical lineto" path element with absolute coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionX">absolute x coordinate of the last active point</param>
+        /// <returns>the point at the end of the vertical line action and its exact, unscaled coordinates</returns>
+        private Tuple<Point, double, double> Parse_V(List<string> pathElements, double lastPositionX)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double y = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            return new Tuple<Point, double, double>(ScaleAndCreatePoint(lastPositionX, y), lastPositionX, y);
+        }
+
+        /// <summary>
+        /// parses a "vertical lineto" path element with relative coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionX">absolute x coordinate of the last active point</param>
+        /// <param name="lastPositionY">absolute y coordinate of the last active point</param>
+        /// <returns>the point at the end of the vertical line action and its exact, unscaled coordinates</returns>
+        private Tuple<Point, double, double> Parse_v(List<string> pathElements, double lastPositionX, double lastPositionY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double y = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse relative y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            y = lastPositionY + y; //compute absolute y coordinate
+            return new Tuple<Point, double, double>(ScaleAndCreatePoint(lastPositionX, y), lastPositionX, y);
+        }
+
+        /// <summary>
+        /// parses a "cubic bezier curve" path element with absolute coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionX">absolute x coordinate of the last active point</param>
+        /// <param name="lastPositionY">absolute y coordinate of the last active point</param>
+        /// <returns>a List of Points containing all sampled points on the bezier curve, aswell as the unscaled x and y coordinates of the last point of the curve and of the second bezier control point</returns>
+        private Tuple<List<Point>, double, double, double, double> Parse_C(List<string> pathElements, double lastPositionX, double lastPositionY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double x1 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse first control point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y1 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse first control point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            double x2 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse second control point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y2 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse second control point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            double x = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            return new Tuple<List<Point>, double, double, double, double>(SampleCubicBezier(lastPositionX, lastPositionY, x1, y1, x2, y2, x, y), x, y, x2, y2);
+        }
+
+        /// <summary>
+        /// parses a "cubic bezier curve" path element with relative coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionX">absolute x coordinate of the last active point</param>
+        /// <param name="lastPositionY">absolute y coordinate of the last active point</param>
+        /// <returns>a List of Points containing all sampled points on the bezier curve, aswell as the unscaled x and y coordinates of the last point of the curve and of the second bezier control point</returns>
+        private Tuple<List<Point>, double, double, double, double> Parse_c(List<string> pathElements, double lastPositionX, double lastPositionY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double x1 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse first control point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y1 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse first control point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            double x2 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse second control point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y2 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse second control point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            double x = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            x1 = lastPositionX + x1; //compute absolute x coordinate
+            y1 = lastPositionY + y1; //compute absolute y coordinate
+            x2 = lastPositionX + x2; //compute absolute x coordinate
+            y2 = lastPositionY + y2; //compute absolute y coordinate
+            x = lastPositionX + x; //compute absolute x coordinate
+            y = lastPositionY + y; //compute absolute y coordinate
+            return new Tuple<List<Point>, double, double, double, double>(SampleCubicBezier(lastPositionX, lastPositionY, x1, y1, x2, y2, x, y), x, y, x2, y2);
+        }
+
+        /// <summary>
+        /// parses a "cubic bezier curve shorthand" path element with absolute coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionX">absolute x coordinate of the last active point</param>
+        /// <param name="lastPositionY">absolute y coordinate of the last active point</param>
+        /// <param name="lastBezierControlPointX">absolute x coordinate of the last bezier control point of the previous bezier curve</param>
+        /// <param name="lastBezierControlPointY">absolute y coordinate of the last bezier control point of the previous bezier curve</param>
+        /// <returns>a List of Points containing all sampled points on the bezier curve, aswell as the unscaled x and y coordinates of the last point of the curve and of the second bezier control point</returns>
+        private Tuple<List<Point>, double, double, double, double> Parse_S(List<string> pathElements, double lastPositionX, double lastPositionY, double lastBezierControlPointX, double lastBezierControlPointY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double x2 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse second control point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y2 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse second control point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            double x = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            double x1 = lastPositionX + (lastPositionX - lastBezierControlPointX); //mirror last bezier control point at bezier start point to get first new bezier control point
+            double y1 = lastPositionY + (lastPositionY - lastBezierControlPointY); //mirror last bezier control point at bezier start point to get first new bezier control point
+            return new Tuple<List<Point>, double, double, double, double>(SampleCubicBezier(lastPositionX, lastPositionY, x1, y1, x2, y2, x, y), x, y, x2, y2);
+        }
+
+        /// <summary>
+        /// parses a "cubic bezier curve shorthand" path element with relative coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionX">absolute x coordinate of the last active point</param>
+        /// <param name="lastPositionY">absolute y coordinate of the last active point</param>
+        /// <param name="lastBezierControlPointX">absolute x coordinate of the last bezier control point of the previous bezier curve</param>
+        /// <param name="lastBezierControlPointY">absolute y coordinate of the last bezier control point of the previous bezier curve</param>
+        /// <returns>a List of Points containing all sampled points on the bezier curve, aswell as the unscaled x and y coordinates of the last point of the curve and of the second bezier control point</returns>
+        private Tuple<List<Point>, double, double, double, double> Parse_s(List<string> pathElements, double lastPositionX, double lastPositionY, double lastBezierControlPointX, double lastBezierControlPointY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double x2 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse second control point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y2 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse second control point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            double x = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            double x1 = lastPositionX + (lastPositionX - lastBezierControlPointX); //mirror last bezier control point at bezier start point to get first new bezier control point
+            double y1 = lastPositionY + (lastPositionY - lastBezierControlPointY); //mirror last bezier control point at bezier start point to get first new bezier control point
+            x2 = lastPositionX + x2; //compute absolute x coordinate
+            y2 = lastPositionY + y2; //compute absolute y coordinate
+            x = lastPositionX + x; //compute absolute x coordinate
+            y = lastPositionY + y; //compute absolute y coordinate
+            return new Tuple<List<Point>, double, double, double, double>(SampleCubicBezier(lastPositionX, lastPositionY, x1, y1, x2, y2, x, y), x, y, x2, y2);
+        }
+
+        /// <summary>
+        /// parses a "quadratic bezier curve" path element with absolute coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionX">absolute x coordinate of the last active point</param>
+        /// <param name="lastPositionY">absolute y coordinate of the last active point</param>
+        /// <returns>a List of Points containing all sampled points on the bezier curve, aswell as the unscaled x and y coordinates of the last point of the curve and of the bezier control point</returns>
+        private Tuple<List<Point>, double, double, double, double> Parse_Q(List<string> pathElements, double lastPositionX, double lastPositionY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double x1 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse control point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y1 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse control point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            double x = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            return new Tuple<List<Point>, double, double, double, double>(SampleQuadraticBezier(lastPositionX, lastPositionY, x1, y1, x, y), x, y, x1, y1);
+        }
+
+        /// <summary>
+        /// parses a "quadratic bezier curve" path element with relative coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionX">absolute x coordinate of the last active point</param>
+        /// <param name="lastPositionY">absolute y coordinate of the last active point</param>
+        /// <returns>a List of Points containing all sampled points on the bezier curve, aswell as the unscaled x and y coordinates of the last point of the curve and of the bezier control point</returns>
+        private Tuple<List<Point>, double, double, double, double> Parse_q(List<string> pathElements, double lastPositionX, double lastPositionY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double x1 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse control point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y1 = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse control point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            double x = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            x1 = lastPositionX + x1; //compute absolute x coordinate
+            y1 = lastPositionY + y1; //compute absolute y coordinate
+            x = lastPositionX + x; //compute absolute x coordinate
+            y = lastPositionY + y; //compute absolute y coordinate
+            return new Tuple<List<Point>, double, double, double, double>(SampleQuadraticBezier(lastPositionX, lastPositionY, x1, y1, x, y), x, y, x1, y1);
+        }
+
+        /// <summary>
+        /// parses a "quadratic bezier curve shorthand" path element with absolute coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionX">absolute x coordinate of the last active point</param>
+        /// <param name="lastPositionY">absolute y coordinate of the last active point</param>
+        /// <param name="lastBezierControlPointX">absolute x coordinate of the last bezier control point of the previous bezier curve</param>
+        /// <param name="lastBezierControlPointY">absolute y coordinate of the last bezier control point of the previous bezier curve</param>
+        /// <returns>a List of Points containing all sampled points on the bezier curve, aswell as the unscaled x and y coordinates of the last point of the curve and of the bezier control point</returns>
+        private Tuple<List<Point>, double, double, double, double> Parse_T(List<string> pathElements, double lastPositionX, double lastPositionY, double lastBezierControlPointX, double lastBezierControlPointY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double x = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            double x1 = lastPositionX + (lastPositionX - lastBezierControlPointX); //mirror last bezier control point at bezier start point to get first new bezier control point
+            double y1 = lastPositionY + (lastPositionY - lastBezierControlPointY); //mirror last bezier control point at bezier start point to get first new bezier control point
+            return new Tuple<List<Point>, double, double, double, double>(SampleQuadraticBezier(lastPositionX, lastPositionY, x1, y1, x, y), x, y, x1, y1);
+        }
+
+        /// <summary>
+        /// parses a "quadratic bezier curve shorthand" path element with relative coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionX">absolute x coordinate of the last active point</param>
+        /// <param name="lastPositionY">absolute y coordinate of the last active point</param>
+        /// <param name="lastBezierControlPointX">absolute x coordinate of the last bezier control point of the previous bezier curve</param>
+        /// <param name="lastBezierControlPointY">absolute y coordinate of the last bezier control point of the previous bezier curve</param>
+        /// <returns>a List of Points containing all sampled points on the bezier curve, aswell as the unscaled x and y coordinates of the last point of the curve and of the bezier control point</returns>
+        private Tuple<List<Point>, double, double, double, double> Parse_t(List<string> pathElements, double lastPositionX, double lastPositionY, double lastBezierControlPointX, double lastBezierControlPointY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double x = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            x = lastPositionX + x; //compute absolute x coordinate
+            y = lastPositionY + y; //compute absolute y coordinate
+            double x1 = lastPositionX + (lastPositionX - lastBezierControlPointX); //mirror last bezier control point at bezier start point to get first new bezier control point
+            double y1 = lastPositionY + (lastPositionY - lastBezierControlPointY); //mirror last bezier control point at bezier start point to get first new bezier control point
+            return new Tuple<List<Point>, double, double, double, double>(SampleQuadraticBezier(lastPositionX, lastPositionY, x1, y1, x, y), x, y, x1, y1);
+        }
+
+        /// <summary>
+        /// parses a "elliptical arc" path element with absolute coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionX">absolute x coordinate of the last active point</param>
+        /// <param name="lastPositionY">absolute y coordinate of the last active point</param>
+        /// <returns>a List of Points containing all sampled points on the elliptic arc, aswell as the unscaled x and y coordinates of the last point of the arc<returns>
+        private Tuple<List<Point>, double, double> Parse_A(List<string> pathElements, double lastPositionX, double lastPositionY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double rx = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse x radius
+            pathElements.RemoveAt(0); //remove x radius token
+            double ry = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse y radius
+            pathElements.RemoveAt(0); //remove y radius token
+            double thetha = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse rotation
+            pathElements.RemoveAt(0); //remove rotation token
+            bool largeArcFlag = Convert.ToInt16(pathElements.First()) == 1 ? true : false; //parse large arc flag
+            pathElements.RemoveAt(0); //remove large arc flag token
+            bool sweepFlag = Convert.ToInt16(pathElements.First()) == 1 ? true : false; //parse sweep flag
+            pathElements.RemoveAt(0); //remove sweep flag token
+            double x = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            x = x - lastPositionX; //compute relative x coordinate
+            y = y - lastPositionY; //compute relative y coordinate
+            return new Tuple<List<Point>, double, double>(SampleArc(lastPositionX, lastPositionY, rx, ry, x, y, thetha, largeArcFlag, sweepFlag), x, y);
+        }
+
+        /// <summary>
+        /// parses a "elliptical arc" path element with relative coordinates
+        /// </summary>
+        /// <param name="pathElements">a list of all not yet parsed path element tokens and values in correct order, starting with the element to be parsed</param>
+        /// <param name="lastPositionX">absolute x coordinate of the last active point</param>
+        /// <param name="lastPositionY">absolute y coordinate of the last active point</param>
+        /// <returns>a List of Points containing all sampled points on the elliptic arc, aswell as the unscaled x and y coordinates of the last point of the arc</returns>
+        private Tuple<List<Point>, double, double> Parse_a(List<string> pathElements, double lastPositionX, double lastPositionY)
+        {
+            pathElements.RemoveAt(0); //remove element descriptor token
+            double rx = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse x radius
+            pathElements.RemoveAt(0); //remove x radius token
+            double ry = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse y radius
+            pathElements.RemoveAt(0); //remove y radius token
+            double thetha = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse rotation
+            pathElements.RemoveAt(0); //remove rotation token
+            bool largeArcFlag = Convert.ToInt16(pathElements.First()) == 1 ? true : false; //parse large arc flag
+            pathElements.RemoveAt(0); //remove large arc flag token
+            bool sweepFlag = Convert.ToInt16(pathElements.First()) == 1 ? true : false; //parse sweep flag
+            pathElements.RemoveAt(0); //remove sweep flag token
+            double x = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point x coordinate
+            pathElements.RemoveAt(0); //remove x coordinate token
+            double y = Convert.ToDouble(pathElements.First(), CultureInfo.InvariantCulture); //parse target point y coordinate
+            pathElements.RemoveAt(0); //remove y coordinate token
+            return new Tuple<List<Point>, double, double>(SampleArc(lastPositionX, lastPositionY, rx, ry, x, y, thetha, largeArcFlag, sweepFlag), x, y);
+        }
+
+        /// <summary>
+        /// samples an arc of an ellipse into a list of points
+        /// </summary>
+        /// <param name="lastPositionX">x coordinate of last point</param>
+        /// <param name="lastPositionY">y coordinate of last point</param>
+        /// <param name="rx">x radius of the ellipse</param>
+        /// <param name="ry">y radius of the ellipse</param>
+        /// <param name="nextPositionXRelative">x coordinate of next point</param>
+        /// <param name="nextPositionYRelative">y coordinate of next point</param>
+        /// <param name="thetha">rotation of the ellipse around the x axis</param>
+        /// <param name="largeArcFlag">flag determining if the large or the small arc is to be drawn</param>
+        /// <param name="sweepFlag">flag determining in which direction the arc is to be drawn (false = ccw, true = cw)</param>
+        /// <returns></returns>
+        private List<Point> SampleArc(double lastPositionX, double lastPositionY, double rx, double ry, double nextPositionXRelative, double nextPositionYRelative, double thetha, bool largeArcFlag, bool sweepFlag)
+        {
+            double cos = Math.Cos(thetha / 180 * Math.PI);
+            double sin = Math.Sin(thetha / 180 * Math.PI);
+            double targetXTransformed = cos * nextPositionXRelative - sin * nextPositionYRelative; //rotate target point counterclockwise around the start point by [thetha] degrees, thereby practically rotating an intermediate coordinate system, which has its origin in the start point, clockwise by the same amount
+            double targetYTransformed = sin * nextPositionXRelative + cos * nextPositionYRelative;
+            var values = SampleEllipticArcBiasedNoRotation(rx, ry, targetXTransformed, targetYTransformed, largeArcFlag, sweepFlag);
+            List<Point> result = new List<Point>();
+            for (int j = 0; j < values.Item1.Length; j++)
+            {
+                double xCoordinateRelative = cos * values.Item1[j] + sin * values.Item2[j]; //rotate backwards so intermediate coordinate system and "real" coordinate system have the same rotation again
+                double yCoordinateRelative = cos * values.Item2[j] - sin * values.Item1[j];
+                double xCoordinateAbsolute = lastPositionX + xCoordinateRelative; //translate relative to absolute coordinates (intermediate coordinate system is now again aligned with the "real" one (the virtual pane on which all vectorgraphic elements are placed) (note that this "real" coordinate system is still not the same as the one actually representing pixels for drawing, as it still has to be scaled appropriately (done inside the ScaleAndCreatePoint method)))
+                double yCoordinateAbsolute = lastPositionY + yCoordinateRelative;
+                result.Add(ScaleAndCreatePoint(xCoordinateAbsolute, yCoordinateAbsolute));
+            }
+            return result;
+        }
+
+        /// <summary>
+        /// samples an elliptical arc with given radii through coordinate origin and endpoint with specified properties
+        /// </summary>
+        /// <param name="rx">x radius</param>
+        /// <param name="ry">y radius</param>
+        /// <param name="targetXTransformed">x coordinate of next point</param>
+        /// <param name="targetYTransformed">y coordinate of next point</param>
+        /// <param name="largeArcFlag">flag determining if the large or the small arc is to be drawn</param>
+        /// <param name="sweepFlag">flag determining in which direction the arc is to be drawn (false = ccw, true = cw)</param>
+        /// <returns></returns>
+        private Tuple<double[], double[]> SampleEllipticArcBiasedNoRotation(double rx, double ry, double targetXTransformed, double targetYTransformed, bool largeArcFlag, bool sweepFlag)
+        {
+            double xStretchFactor = rx / ry; //get rx to ry ratio
+            var values = SampleCircleArcBiasedNoRotation(ry, targetXTransformed / xStretchFactor, targetYTransformed, largeArcFlag, sweepFlag); //get a circular arc with radius ry
+            for (int j = 0; j < values.Item1.Length; j++)
+            {
+                values.Item1[j] = values.Item1[j] * xStretchFactor; //correct x coordinates to get an elliptical arc from a circular one
+            }
+            return values;
+        }
+
+        /// <summary>
+        /// samples a circular arc with given radius through coordinate origin and endpoint with specified properties
+        /// </summary>
+        /// <param name="r">radius</param>
+        /// <param name="nextPositionXRelative">x coordinate of next point</param>
+        /// <param name="nextPositionYRelative">y coordinate of next point</param>
+        /// <param name="largeArcFlag">flag determining if the large or the small arc is to be drawn</param>
+        /// <param name="sweepFlag">flag determining in which direction the arc is to be drawn (false = ccw, true = cw)</param>
+        /// <returns></returns>
+        private Tuple<double[], double[]> SampleCircleArcBiasedNoRotation(double r, double nextPositionXRelative, double nextPositionYRelative, bool largeArcFlag, bool sweepFlag)
+        {
+            // code for center computation adapted from https://stackoverflow.com/a/36211852
+            double radsq = r * r;
+            double q = Math.Sqrt(((nextPositionXRelative) * (nextPositionXRelative)) + ((nextPositionYRelative) * (nextPositionYRelative))); //Math.Sqrt(((x2 - x1) * (x2 - x1)) + ((y2 - y1) * (y2 - y1)));
+            double x3 = (nextPositionXRelative) / 2; //(x1 + x2) / 2;
+            double y3 = (nextPositionYRelative) / 2; //(y1 + y2) / 2;
+            bool xPlusFlag; //flags needed to select center point "left" of the line between origin and the endpoint (will be used to select correct one ("left" or "right" one) later together with flags passed as arguments
+            bool yPlusFlag;
+            if (nextPositionXRelative > 0)
+            {
+                yPlusFlag = true; //left point lies above line
+            }
+            else
+            {
+                yPlusFlag = false; //left point lies below line
+            }
+            if (nextPositionYRelative > 0)
+            {
+                xPlusFlag = false; //left point lies left of line
+            }
+            else
+            {
+                xPlusFlag = true; //left point lies right of line
+            }
+            if (sweepFlag != largeArcFlag) //need "right" center point, not "left" one (refer to svg specification, sweepFlag means going around the circle in "clockwise" direction, largeArcFlag means tracing the larger of the two possible arcs in the selected direction) 
+            {
+                xPlusFlag = !xPlusFlag;
+                yPlusFlag = !yPlusFlag;
+            }
+            double xC; // coordinates of center point of circle
+            double yC;
+            if (xPlusFlag) xC = x3 + Math.Sqrt(radsq - ((q / 2) * (q / 2))) * ((nextPositionYRelative) / q); //x3 + Math.Sqrt(radsq - ((q / 2) * (q / 2))) * ((y1 - y2) / q);
+            else xC = x3 - Math.Sqrt(radsq - ((q / 2) * (q / 2))) * ((nextPositionYRelative) / q);
+            if (yPlusFlag) yC = y3 + Math.Sqrt(radsq - ((q / 2) * (q / 2))) * ((nextPositionXRelative) / q); //y3 + Math.Sqrt(radsq - ((q / 2) * (q / 2))) * ((x2-x1) / q);
+            else yC = y3 - Math.Sqrt(radsq - ((q / 2) * (q / 2))) * ((nextPositionXRelative) / q);
+            var values = SampleCircleArcBiasedAroundCenter(-xC, -yC, nextPositionXRelative - xC, nextPositionYRelative - yC, r, largeArcFlag, sweepFlag);
+            for (int j = 0; j < values.Item1.Length; j++)
+            {
+                values.Item1[j] = values.Item1[j] + xC; //correct center point coordinate bias
+                values.Item2[j] = values.Item2[j] + yC;
+            }
+            return values;
+        }
+
+        /// <summary>
+        /// samples a circular arc with given radius around the center from the startpoint to the endpoint in the specified direction
+        /// </summary>
+        /// <param name="xStartPoint">x coordinate of the start point</param>
+        /// <param name="yStartPoint">y coordinate of the start point</param>
+        /// <param name="xFinalPoint">x coordinate of the final point</param>
+        /// <param name="yFinalPoint">y coordinate of the final point</param>
+        /// <param name="r">radius</param>
+        /// <param name="clockwise">direction</param>
+        /// <returns></returns>
+        private Tuple<double[], double[]> SampleCircleArcBiasedAroundCenter(double xStartPoint, double yStartPoint, double xFinalPoint, double yFinalPoint, double r, bool largeArcFlag, bool clockwise)
+        {
+            double phiEnd = Math.Atan2(yFinalPoint, xFinalPoint); // angles between points and origin and the positive x Axis
+            double phiStart = Math.Atan2(yStartPoint, xStartPoint);
+            double angle = ((double)2 * Math.PI) / (double)samplingRateEllipse; //compute angle increment (equal to the one used for ellipses)
+            double angleDifference = Math.Abs(phiStart - phiEnd);
+            if (angleDifference > 2 * Math.PI || angleDifference < 0) throw new Exception("angleDifference out of range: " + angleDifference); //TODO remove
+            if (largeArcFlag) // get larger angleDifference
+            {
+                if (angleDifference < Math.PI) angleDifference = ((double)2 * Math.PI) - angleDifference;  // was smaller angleDifference
+            }
+            else // get smaller angleDifference
+            {
+                if (angleDifference > Math.PI) angleDifference = ((double)2 * Math.PI) - angleDifference;  // was larger angleDifference
+            }
+            int numberOfPoints = (int)Math.Ceiling(angleDifference / angle);  //compute number of points to sample
+            double[] xValues = new double[numberOfPoints];
+            double[] yValues = new double[numberOfPoints];
+            double phiCurrent = phiStart;
+            for (int j = 0; j < numberOfPoints - 1; j++) //compute intermediate points
+            {
+                if (clockwise) phiCurrent -= angle; //get new angle
+                else phiCurrent += angle;
+                yValues[j] = Math.Sin(phiCurrent) * r; //angles are relative to positive x Axis!
+                xValues[j] = Math.Cos(phiCurrent) * r;
+            }
+            xValues[numberOfPoints - 1] = xFinalPoint; //(last segment always has an angle of less than or exactly 'angle')
+            yValues[numberOfPoints - 1] = yFinalPoint;
+            return new Tuple<double[], double[]>(xValues, yValues);
+        }
+
+        /// <summary>
+        /// samples a cubic bezier curve with a static number of steps (samplingRateBezier)
+        /// </summary>
+        /// <param name="lastPositionX">x coordinate of last point</param>
+        /// <param name="lastPositionY">y coordinate of last point</param>
+        /// <param name="controlPoint1X">x coordinate of control point 1</param>
+        /// <param name="controlPoint1Y">y coordinate of control point 1</param>
+        /// <param name="controlPoint2X">x coordinate of control point 2</param>
+        /// <param name="controlPoint2Y">y coordinate of control point 2</param>
+        /// <param name="nextPositionX">x coordinate of next point</param>
+        /// <param name="nextPositionY">y coordinate of next point</param>
+        /// <returns>a List of Points containing all sampled points</returns>
+        private List<Point> SampleCubicBezier(double lastPositionX, double lastPositionY, double controlPoint1X, double controlPoint1Y, double controlPoint2X, double controlPoint2Y, double nextPositionX, double nextPositionY)
+        {
+            var line1 = CreateDiscreteLine(lastPositionX, lastPositionY, controlPoint1X, controlPoint1Y);
+            var line2 = CreateDiscreteLine(controlPoint1X, controlPoint1Y, controlPoint2X, controlPoint2Y);
+            var line3 = CreateDiscreteLine(controlPoint2X, controlPoint2Y, nextPositionX, nextPositionY);
+            var quadraticBezier1 = ComputeBezierStep(line1.Item1, line1.Item2, line2.Item1, line2.Item2);
+            var quadraticBezier2 = ComputeBezierStep(line2.Item1, line2.Item2, line3.Item1, line3.Item2);
+            var values = ComputeBezierStep(quadraticBezier1.Item1, quadraticBezier1.Item2, quadraticBezier2.Item1, quadraticBezier2.Item2);
+            List<Point> result = new List<Point>();
+            for (int j = 0; j < samplingRateBezier; j++)
+            {
+                result.Add(ScaleAndCreatePoint(values.Item1[j], values.Item2[j]));
+            }
+            return result;
+        }
+
+        /// <summary>
+        /// samples a quadratic bezier curve with a static number of steps (samplingRateBezier)
+        /// </summary>
+        /// <param name="lastPositionX">x coordinate of last point</param>
+        /// <param name="lastPositionY">y coordinate of last point</param>
+        /// <param name="controlPointX">x coordinate of control point</param>
+        /// <param name="controlPointY">y coordinate of control point</param>
+        /// <param name="nextPositionX">x coordinate of next point</param>
+        /// <param name="nextPositionY">y coordinate of next point</param>
+        /// <returns>a List of Points containing all sampled points</returns>
+        private List<Point> SampleQuadraticBezier(double lastPositionX, double lastPositionY, double controlPointX, double controlPointY, double nextPositionX, double nextPositionY)
+        {
+            var line1 = CreateDiscreteLine(lastPositionX, lastPositionY, controlPointX, controlPointY);
+            var line2 = CreateDiscreteLine(controlPointX, controlPointY, nextPositionX, nextPositionY);
+            var values = ComputeBezierStep(line1.Item1, line1.Item2, line2.Item1, line2.Item2);
+            List<Point> result = new List<Point>();
+            for (int j = 0; j < samplingRateBezier; j++)
+            {
+                result.Add(ScaleAndCreatePoint(values.Item1[j], values.Item2[j]));
+            }
+            return result;
+        }
+
+        /// <summary>
+        /// create a discrete line with [samplingRateBezier] points (including start and end point) between two points
+        /// </summary>
+        /// <param name="point1X">coordinate of point 1</param>
+        /// <param name="point1Y">y coordinate of point 1</param>
+        /// <param name="point2X">x coordinate of point 2</param>
+        /// <param name="point2Y">y coordinate of point 2</param>
+        /// <returns>the discrete line as arrays of x and y coordinates</returns>
+        private Tuple<double[], double[]> CreateDiscreteLine(double point1X, double point1Y, double point2X, double point2Y)
+        {
+            double[] resultX = new double[samplingRateBezier];
+            double[] resultY = new double[samplingRateBezier];
+            for (int j = 0; j < samplingRateBezier; j++)
+            {
+                var pointResult = LinearInterpolationForBezier(point1X, point1Y, point2X, point2Y, j);
+                resultX[j] = pointResult.Item1;
+                resultY[j] = pointResult.Item2;
+            }
+            return new Tuple<double[], double[]>(resultX, resultY);
+        }
+
+        /// <summary>
+        /// computes the discrete bezier curve between two given dicrete lines/curves
+        /// </summary>
+        /// <param name="line1X">x coordinates of all points in line 1</param>
+        /// <param name="line1Y">y coordinates of all points in line 1</param>
+        /// <param name="line2X">x coordinates of all points in line 2</param>
+        /// <param name="line2Y">y coordinates of all points in line 2</param>
+        /// <returns>the discrete bezier curve</returns>
+        private Tuple<double[], double[]> ComputeBezierStep(double[] line1X, double[] line1Y, double[] line2X, double[] line2Y)
+        {
+            double[] resultX = new double[samplingRateBezier];
+            double[] resultY = new double[samplingRateBezier];
+            for (int j = 0; j < samplingRateBezier; j++)
+            {
+                var pointResult = LinearInterpolationForBezier(line1X[j], line1Y[j], line2X[j], line2Y[j], j);
+                resultX[j] = pointResult.Item1;
+                resultY[j] = pointResult.Item2;
+            }
+            return new Tuple<double[], double[]>(resultX, resultY);
+        }
+
+        /// <summary>
+        /// creates the linearly interpolated point at j/(samplingRateBezier - 1) between point 1 and point 2
+        /// </summary>
+        /// <param name="point1X">x coordinate of point 1</param>
+        /// <param name="point1Y">y coordinate of point 1</param>
+        /// <param name="point2X">x coordinate of point 2</param>
+        /// <param name="point2Y">y coordinate of point 2</param>
+        /// <param name="j">number of point to be interpolated, at a total number of [samplingRateBezier] points</param>
+        /// <returns>the linearly interpolated point</returns>
+        private Tuple<double, double> LinearInterpolationForBezier(double point1X, double point1Y, double point2X, double point2Y, int j)
+        {
+            double factor = ((double)1 / (double)(samplingRateBezier - 1)) * (double)j; //factor for linear interpolation
+            double x = point1X + ((point2X - point1X) * factor);
+            double y = point1Y + ((point2Y - point1Y) * factor);
+            return new Tuple<double, double>(x, y);
+        }
+
+        /// <summary>
+        /// parses a hierarchical svg element and all its sub-elements
+        /// </summary>
+        /// <param name="currentElement">the definition of the top level element as whitespace seperated String[]</param>
+        /// <param name="allLines">an array holding all lines of the input file</param>
+        /// <returns>the parsed element as a Line object, or null if the element is not supported</returns>
+        private List<InternalLine> ParseMultiLineSVGElement(string[] currentElement, string[] allLines)
+        {
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// removes the name of the attribute aswell as the '="' at the beginning and the '"' or '">' at the end of an attribute definition
+        /// </summary>
+        /// <param name="definition">the definition from the svg file</param>
+        /// <returns>the value of the attribute, as String (the part of definition contained between '"'s)</returns>
+        private String ParseSingleSVGAttribute(String definition)
+        {
+            return definition.Split('"')[1];
+        }
+
+        /// <summary>
+        /// fetches a single svg element definition that may extend ovr several lines of the input file, iterates i to point to the last line of the element definition
+        /// </summary>
+        /// <param name="allLines">an array holding all lines of the input file</param>
+        /// <returns>the definition of the current svg element, as String[] split by whitespaces</returns>
+        private String[] GetCurrentElement(String[] allLines)
+        {
+            List<String> currentElementTemp = allLines[i].Split(whitespaces).ToList();
+            while (!currentElementTemp.Last().EndsWith(">"))
+            {
+                i++;
+                currentElementTemp.AddRange(allLines[i].Split(whitespaces).ToList());
+            }
+            return currentElementTemp.ToArray();
+        }
+
+        /// <summary>
+        /// applies the scale factor to the coordinates and creates a new Point
+        /// </summary>
+        /// <param name="x">unscaled x coordinate</param>
+        /// <param name="y">unscaled y coordinate</param>
+        /// <returns>new Point with scaled coordinates</returns>
+        private Point ScaleAndCreatePoint(double x, double y)
+        {
+            return new Point((int)Math.Round(x * scale), (int)Math.Round(y * scale));
+        }
+
+        /// <summary>
+        /// creates a representation of an ellipse as a List of Points by sampling the outline of the ellipse
+        /// </summary>
+        /// <param name="x">x coordinate of the center of the ellipse</param>
+        /// <param name="y">y coordinate of the center of the ellipse</param>
+        /// <param name="rx">x radius of the ellipse</param>
+        /// <param name="ry">y radius of the ellipse</param>
+        /// <returns>the parsed element as a List of Points</returns>
+        private List<Point> SampleEllipse(double x, double y, double rx, double ry)
+        {
+            List<Point> ellipse = new List<Point>();
+            double angle = ((double)2 * Math.PI) / (double)samplingRateEllipse;
+            double yScale = ry / rx;
+            double[] xValues = new double[samplingRateEllipse / 4];
+            double[] yValues = new double[samplingRateEllipse / 4];
+            for (int j = 0; j < samplingRateEllipse / 4; j++) //compute offset values of points for one quadrant
+            {
+                xValues[j] = Math.Sin((double)j * angle) * rx;
+                yValues[j] = Math.Cos((double)j * angle) * rx;
+            }
+            for (int j = 0; j < samplingRateEllipse / 4; j++) //create actual points for first quadrant
+            {
+                int xCoord = Convert.ToInt32(Math.Round(x + xValues[j]));
+                int yCoord = Convert.ToInt32(Math.Round(y - yValues[j] * yScale));
+                ellipse.Add(ScaleAndCreatePoint(xCoord, yCoord));
+            }
+            for (int j = 0; j < samplingRateEllipse / 4; j++) //create actual points for second quadrant
+            {
+                int xCoord = Convert.ToInt32(Math.Round(x + yValues[j]));
+                int yCoord = Convert.ToInt32(Math.Round(y + xValues[j] * yScale));
+                ellipse.Add(ScaleAndCreatePoint(xCoord, yCoord));
+            }
+            for (int j = 0; j < samplingRateEllipse / 4; j++) //create actual points for third quadrant
+            {
+                int xCoord = Convert.ToInt32(Math.Round(x - xValues[j]));
+                int yCoord = Convert.ToInt32(Math.Round(y + yValues[j] * yScale));
+                ellipse.Add(ScaleAndCreatePoint(xCoord, yCoord));
+            }
+            for (int j = 0; j < samplingRateEllipse / 4; j++) //create actual points for fourth quadrant
+            {
+                int xCoord = Convert.ToInt32(Math.Round(x - yValues[j]));
+                int yCoord = Convert.ToInt32(Math.Round(y - xValues[j] * yScale));
+                ellipse.Add(ScaleAndCreatePoint(xCoord, yCoord));
+            }
+            ellipse.Add(ScaleAndCreatePoint(Convert.ToInt32(Math.Round(x + 0)), Convert.ToInt32(Math.Round(y - rx * yScale)))); //close ellipse
+            return ellipse;
+        }
     }
 }

SketchAssistant/SketchAssistantWPF/Frame.cs

@@ -0,0 +1,39 @@
+namespace OptiTrack
+{
+    public class Frame
+    {
+        public Trackable[] Trackables;
+        public Marker[] Markers;
+
+        public Frame(int markerCount, int trackableCount)
+        {
+            Trackables = new Trackable[trackableCount];
+            Markers = new Marker[markerCount];
+        }
+    }
+
+    public class Trackable
+    {
+        public int Id;
+        public float X, Y, Z, Qx, Qy, Qz, Qw, Pitch, Roll, Yaw;
+        public bool IsTracked;
+
+        internal bool IsAlmostSameCoordinates(Trackable t)
+        {
+            return X == t.X && Y == t.Y && Z == t.Z;
+        }
+    }
+
+    public class Marker
+    {
+        public float X, Y, Z;
+        public Trackable BoundToTrackable;
+
+        public Marker(float x, float y, float z)
+        {
+            X = x;
+            Y = y;
+            Z = z;
+        }
+    }
+}

SketchAssistant/SketchAssistantWPF/GeometryCalculator.cs

@@ -13,51 +13,147 @@ namespace SketchAssistantWPF
     public static class GeometryCalculator
     {
         /// <summary>
-        /// An implementation of the Bresenham Line Algorithm,
-        /// which calculates the points of a circle in a radius around a center point.
-        /// Implemented with the help of code examples on Wikipedia.
+        /// Calculate the approximate similarity of two lines. 
+        /// Using three weighted parameters to calculate a value between 0 and 1 to indicate the similarity of the lines.
         /// </summary>
-        /// <param name="center">The center of the circle.</param>
-        /// <param name="radius">The radius of the circle, 
-        /// when it is zero or less, only the midpoint is returned</param>
-        /// <returns>The HashSet containing all Points on the circle.</returns>
-        public static HashSet<Point> BresenhamCircleAlgorithm(Point center, int radius)
+        /// <param name="line0">The first line.</param>
+        /// <param name="line1">The second line.</param>
+        /// <returns>The similarity of the two lines.</returns>
+        public static double CalculateSimilarity(InternalLine line0, InternalLine line1)
         {
-            if (radius <= 0) { return new HashSet<Point> { center }; }
+            double CosSim = Math.Abs(CalculateAverageCosineSimilarity(line0, line1));
+            double LenSim = CalculateLengthSimilarity(line0, line1);
+            double AvDist = CalculateAverageDistance(line0, line1);
+            double DistSim = (50 - AvDist) / 50;
+            if (DistSim < 0) DistSim = 0;
+            if (CosSim < 0.5 || Double.IsNaN(CosSim)) CosSim = 0;
+            double output = (2 * CosSim + LenSim + DistSim) / 4;
+            System.Diagnostics.Debug.WriteLine("Results: CosSim: {0}, LenSim: {1}, AvDist {2}, DistSim: {3}. Total: {4}",
+                CosSim, LenSim, AvDist, DistSim, output);
+            return output;
+        }
 
-            int x = radius - 1;
-            int y = 0;
-            int dx = 1;
-            int dy = 1;
-            int err = dx - (radius * 2);
-            HashSet<Point> returnSet = new HashSet<Point>();
+        /// <summary>
+        /// The cosine similarity of two vectors.
+        /// </summary>
+        /// <param name="v0">The first vector</param>
+        /// <param name="v1">The second vector</param>
+        /// <returns>The cosine similarity</returns>
+        private static double CosineSimilarity(Vector v0, Vector v1)
+        {
+            return (v0.X * v1.X + v0.Y * v1.Y) / (Math.Sqrt(v0.X * v0.X + v0.Y * v0.Y) * Math.Sqrt(v1.X * v1.X + v1.Y * v1.Y));
+        }
 
-            while (x >= y)
-            {
-                returnSet.Add(new Point(center.X + x, center.Y + y));
-                returnSet.Add(new Point(center.X + y, center.Y + x));
-                returnSet.Add(new Point(center.X - y, center.Y + x));
-                returnSet.Add(new Point(center.X - x, center.Y + y));
-                returnSet.Add(new Point(center.X - x, center.Y - y));
-                returnSet.Add(new Point(center.X - y, center.Y - x));
-                returnSet.Add(new Point(center.X + y, center.Y - x));
-                returnSet.Add(new Point(center.X + x, center.Y - y));
+        /// <summary>
+        /// An approximate calculation of the average cosine similarity 
+        /// of two lines, achieved by calculating the cosine similarity of subvectors.
+        /// </summary>
+        /// <param name="line0">The first line</param>
+        /// <param name="line1">The second line</param>
+        /// <returns>The approximate average cosine similarity of all subvectors</returns>
+        public static double CalculateAverageCosineSimilarity(InternalLine line0, InternalLine line1)
+        {
+            //check if one of the lines is a point, or both lines are points
+            if ((line0.isPoint && !line1.isPoint) || (line1.isPoint && !line0.isPoint)) return 0;
+            else if (line0.isPoint && line1.isPoint) return 1;
+
+            List<Point> points0 = line0.GetPoints();
+            List<Point> points1 = line1.GetPoints();
 
-                if (err <= 0)
+            if (points0.Count == points1.Count)
+            {
+                //If the two lists have an equal amount of subvectors, 
+                //compare the nth subvectors from each list and average the value.
+                double sum = 0; int i = 0;
+                List<Point> shortL = points0; List<Point> longL = points1;
+                for (; i < shortL.Count - 1; i++)
                 {
-                    y++;
-                    err += dy;
-                    dy += 2;
+                    if (i + 1 == shortL.Count || i + 1 == longL.Count) break;
+                    Vector v0 = new Vector(shortL[i + 1].X - shortL[i].X, shortL[i + 1].Y - shortL[i].Y);
+                    Vector v1 = new Vector(longL[i + 1].X - longL[i].X, longL[i + 1].Y - longL[i].Y);
+                    sum += CosineSimilarity(v0, v1);
                 }
+                return sum / i;
+            }
+            else
+            {
+                //Determine if the longer list is of similar length or contains significatly more items
+                List<Point> shortL = points0; List<Point> longL = points0;
+                if (points0.Count < points1.Count) { longL = points1; }
+                if (points0.Count > points1.Count) { shortL = points1; }
+                double dif = (longL.Count - 1) / (shortL.Count - 1);
+                if (dif > 1)
+                {
+                    //The longer list is significantly longer
+                    //Each element in the shorter list is compared to multiple 
+                    // elements in the longer list to make up the difference
+                    double sum = 0; int adds = 0;
 
-                if (err > 0)
+                    for (int i = 0; i < shortL.Count - 1; i++)
+                    {
+                        if (i + 1 == shortL.Count) break;
+                        for (int j = 0; j <= dif; j++)
+                        {
+                            var k = i + j;
+                            if (k + 1 == longL.Count) break;
+                            Vector v0 = new Vector(shortL[i + 1].X - shortL[i].X, shortL[i + 1].Y - shortL[i].Y);
+                            Vector v1 = new Vector(longL[k + 1].X - longL[k].X, longL[k + 1].Y - longL[k].Y);
+                            sum += CosineSimilarity(v0, v1); adds++;
+                        }
+                    }
+                    return sum / adds;
+                }
+                else
                 {
-                    x--;
-                    dx += 2;
-                    err += dx - (radius * 2);
+                    //The longer list is almost the same length as the shorter list
+                    //The remaining items are simply skipped
+                    double sum = 0; int i = 0;
+                    for (; i < shortL.Count - 1; i++)
+                    {
+                        if (i + 1 == shortL.Count || i + 1 == longL.Count) break;
+                        Vector v0 = new Vector(shortL[i + 1].X - shortL[i].X, shortL[i + 1].Y - shortL[i].Y);
+                        Vector v1 = new Vector(longL[i + 1].X - longL[i].X, longL[i + 1].Y - longL[i].Y);
+                        sum += CosineSimilarity(v0, v1);
+                    }
+                    return sum / i;
                 }
             }
-            return returnSet;
+        }
+
+        /// <summary>
+        /// Calculate the similarity in length of two Lines.
+        /// </summary>
+        /// <param name="line0">The first line.</param>
+        /// <param name="line1">The second line.</param>
+        /// <returns>How similar the lines are in length.</returns>
+        private static double CalculateLengthSimilarity(InternalLine line0, InternalLine line1)
+        {
+            double len0 = line0.GetLength(); double len1 = line1.GetLength();
+            var dif = Math.Abs(len1 - len0);
+            if (dif == 0) return 1;
+            double shorter;
+            if (len1 > len0) shorter = len0;
+            else shorter = len1;
+            if (dif >= shorter) return 0;
+            return (shorter - dif) / shorter;
+        }
+
+        /// <summary>
+        /// Calculate the average distance between the ends of two lines.
+        /// </summary>
+        /// <param name="line0">The first line.</param>
+        /// <param name="line1">The second line.</param>
+        /// <returns>The shortest average distance between the ends of the lines.</returns>
+        private static double CalculateAverageDistance(InternalLine line0, InternalLine line1)
+        {
+            List<Point> points0 = line0.GetPoints();
+            List<Point> points1 = line1.GetPoints();
+            double distfirstfirst = Math.Sqrt(Math.Pow((points0[0].X - points1[0].X), 2) + Math.Pow((points0[0].Y - points1[0].Y), 2));
+            double distlastlast = Math.Sqrt(Math.Pow((points0.Last().X - points1.Last().X), 2) + Math.Pow((points0.Last().Y - points1.Last().Y), 2));
+            double distfirstlast = Math.Sqrt(Math.Pow((points0[0].X - points1.Last().X), 2) + Math.Pow((points0[0].Y - points1.Last().Y), 2));
+            double distlastfirst = Math.Sqrt(Math.Pow((points0.Last().X - points1[0].X), 2) + Math.Pow((points0.Last().Y - points1[0].Y), 2));
+            if ((distfirstfirst + distlastlast) / 2 < (distfirstlast + distlastfirst) / 2) return (distfirstfirst + distlastlast) / 2;
+            else return (distfirstlast + distlastfirst) / 2;
         }
 
         /// <summary>

SketchAssistant/SketchAssistantWPF/HighPerformanceTimer.cs

@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OptiTrack
+{
+    public class HighPerformanceTimer
+    {
+        [DllImport("Kernel32.dll")]
+        private static extern bool QueryPerformanceCounter(out long lpPerformanceCount);
+
+        [DllImport("Kernel32.dll")]
+        private static extern bool QueryPerformanceFrequency(out long lpFrequency);
+
+        private long start;
+        private long freq;
+
+        public HighPerformanceTimer()
+        {
+            start = 0;
+            QueryPerformanceFrequency(out freq);
+        }
+
+        public void Start()
+        {
+            QueryPerformanceCounter(out start);
+        }
+
+        public double Stop()
+        {
+            long stop;
+            QueryPerformanceCounter(out stop);
+            return (double)(stop - start) / (double)freq;
+        }
+    }
+}

SketchAssistant/SketchAssistantWPF/InternalLine.cs

@@ -34,6 +34,10 @@ namespace SketchAssistantWPF
         /// The location of the point, if this is a point
         /// </summary>
         public Point point { get; private set; }
+        /// <summary>
+        /// The length of the line
+        /// </summary>
+        private double length = -1;
 
         /// <summary>
         /// The constructor for lines which are only temporary.
@@ -62,14 +66,18 @@ namespace SketchAssistantWPF
             isTemporary = false;
         }
 
-        public Point GetStartPoint()
-        {
-            return linePoints.First();
-        }
-
-        public Point GetEndPoint()
+        /// <summary>
+        /// A function to make temporary lines non-temporary.
+        /// </summary>
+        /// <param name="id">The id of the line.</param>
+        public void MakePermanent(int id)
         {
-            return linePoints.Last();
+            if (isTemporary)
+            {
+                identifier = id;
+                CleanPoints();
+                isTemporary = false;
+            }
         }
 
         public List<Point> GetPoints()
@@ -87,6 +95,26 @@ namespace SketchAssistantWPF
             return pointColl;
         }
 
+
+        /// <summary>
+        /// Get the length of the line.
+        /// </summary>
+        /// <returns>The length of the line.</returns>
+        public double GetLength()
+        {
+            if (length < 0)
+            {
+                length = 0;
+                for (int i = 0; i < linePoints.Count - 1; i++)
+                {
+                    var a = linePoints[i]; var b = linePoints[i + 1];
+
+                    length += Math.Sqrt(Math.Pow((a.X - b.X), 2) + Math.Pow((a.Y - b.Y), 2));
+                }
+            }
+            return length;
+        }
+
         /// <summary>
         /// A function that will take two matrixes and populate them with the line data of this line object
         /// </summary>
@@ -101,12 +129,12 @@ namespace SketchAssistantWPF
                     if (currPoint.X >= 0 && currPoint.Y >= 0 &&
                         currPoint.X < boolMatrix.GetLength(0) && currPoint.Y < boolMatrix.GetLength(1))
                     {
-                        boolMatrix[(int) currPoint.X, (int) currPoint.Y] = true;
-                        if (listMatrix[(int) currPoint.X, (int) currPoint.Y] == null)
+                        boolMatrix[(int)currPoint.X, (int)currPoint.Y] = true;
+                        if (listMatrix[(int)currPoint.X, (int)currPoint.Y] == null)
                         {
-                            listMatrix[(int) currPoint.X, (int) currPoint.Y] = new HashSet<int>();
+                            listMatrix[(int)currPoint.X, (int)currPoint.Y] = new HashSet<int>();
                         }
-                        listMatrix[(int) currPoint.X, (int) currPoint.Y].Add(identifier);
+                        listMatrix[(int)currPoint.X, (int)currPoint.Y].Add(identifier);
                     }
                 }
             }
@@ -117,26 +145,21 @@ namespace SketchAssistantWPF
         /// </summary>
         private void CleanPoints()
         {
-            if (linePoints.Count > 1)
+            if (linePoints.Any())
             {
-                //if this is a point or not
-                var localIsPoint = true;
                 //check if its a point
-                foreach(Point p in linePoints)
+                var localIsPoint = linePoints.All(o => o.X == linePoints.First().X && o.Y == linePoints.First().Y);
+                if (!localIsPoint)
                 {
-                    if (p.X != linePoints[0].X || p.Y != linePoints[0].Y)
-                        localIsPoint = false;
-                }
-                if (!localIsPoint) {
                     List<Point> newList = new List<Point>();
                     List<Point> tempList = new List<Point>();
                     //Since Point is non-nullable, we must ensure the nullPoints, 
                     //which we remove can not possibly be points of the original given line.
-                    int nullValue = (int) linePoints[0].X + 1;
+                    int nullValue = (int)linePoints[0].X + 1;
                     //Fill the gaps between points
                     for (int i = 0; i < linePoints.Count - 1; i++)
                     {
-                        nullValue += (int) linePoints[i + 1].X;
+                        nullValue += (int)linePoints[i + 1].X;
                         List<Point> partialList = GeometryCalculator.BresenhamLineAlgorithm(linePoints[i], linePoints[i + 1]);
                         tempList.AddRange(partialList);
                     }
@@ -162,8 +185,8 @@ namespace SketchAssistantWPF
                 else
                 {
                     isPoint = true;
-                    point = linePoints[0];
-                    linePoints = new List<Point>();
+                    point = linePoints.First();
+                    linePoints.Clear();
                     linePoints.Add(point);
                 }
             }

SketchAssistant/SketchAssistantWPF/MVP_Model.cs

@@ -7,6 +7,9 @@ using System.Threading.Tasks;
 using System.Windows.Controls;
 using System.Windows.Media;
 using System.Windows.Media.Imaging;
+using OptiTrack;
+using System.Runtime.InteropServices;
+using System.IO;
 
 namespace SketchAssistantWPF
 {
@@ -21,27 +24,32 @@ namespace SketchAssistantWPF
         /// </summary>
         ActionHistory historyOfActions;
         /// <summary>
-        /// The assistant responsible for the redraw mode
+        /// The connector class used to get frames from the Optitrack system.
         /// </summary>
-        //RedrawAssistant redrawAss;
+        OptiTrackConnector connector;
+
 
 
         /***********************/
         /*** CLASS VARIABLES ***/
         /***********************/
 
+        /// <summary>
+        /// this is a variable used for detecting whether the tracker is in the warning zone (0 +- variable), no drawing zone (0 +- 2 * variable) or normal drawing zone
+        /// </summary>
+        readonly double WARNING_ZONE_BOUNDARY = 0.10; //10cm
         /// <summary>
         /// If the program is in drawing mode.
         /// </summary>
-        bool inDrawingMode;
+        public bool inDrawingMode { get; private set; }
         /// <summary>
-        /// Size of deletion area
+        /// if the program is using OptiTrack
         /// </summary>
-        int deletionRadius = 5;
+        public bool optiTrackInUse { get; private set; }
         /// <summary>
-        /// Size of areas marking endpoints of lines in the redraw mode.
+        /// Size of deletion area
         /// </summary>
-        int markerRadius = 10;
+        int deletionRadius = 5;
         /// <summary>
         /// The Position of the Cursor in the right picture box
         /// </summary>
@@ -55,6 +63,18 @@ namespace SketchAssistantWPF
         /// </summary>
         Queue<Point> cursorPositions = new Queue<Point>();
         /// <summary>
+        /// The Position of the Cursor of opti track
+        /// </summary>
+        Point currentOptiCursorPosition;
+        /// <summary>
+        /// The Previous Cursor Position of opti track
+        /// </summary>
+        Point previousOptiCursorPosition;
+        /// <summary>
+        /// Queue for the cursorPositions of opti track
+        /// </summary>
+        Queue<Point> optiCursorPositions = new Queue<Point>();
+        /// <summary>
         /// Lookup Matrix for checking postions of lines in the image
         /// </summary>
         bool[,] isFilledMatrix;
@@ -63,10 +83,6 @@ namespace SketchAssistantWPF
         /// </summary>
         HashSet<int>[,] linesMatrix;
         /// <summary>
-        /// List of items which will be overlayed over the right canvas.
-        /// </summary>
-        List<Tuple<bool, HashSet<Point>>> overlayItems;
-        /// <summary>
         /// Width of the LeftImageBox.
         /// </summary>
         public int leftImageBoxWidth;
@@ -82,44 +98,93 @@ namespace SketchAssistantWPF
         /// Height of the RightImageBox.
         /// </summary>
         public int rightImageBoxHeight;
-
-        public ImageDimension leftImageSize { get; private set; }
-
+        /// <summary>
+        /// The size of the right canvas.
+        /// </summary>
         public ImageDimension rightImageSize { get; private set; }
         /// <summary>
         /// Indicates whether or not the canvas on the right side is active.
         /// </summary>
-        public bool canvasActive {get; set;}
+        public bool canvasActive { get; set; }
         /// <summary>
         /// Indicates if there is a graphic loaded in the left canvas.
         /// </summary>
         public bool graphicLoaded { get; set; }
         /// <summary>
+        /// Whether or not an optitrack system is avaiable.
+        /// </summary>
+        public bool optitrackAvailable { get; private set; }
+        /// <summary>
+        /// x coordinate in real world. one unit is one meter. If standing in front of video wall facing it, moving left results in incrementation of x.
+        /// </summary>
+        public float optiTrackX;
+        /// <summary>
+        /// y coordinate in real world. one unit is one meter. If standing in front of video wall, moving up results in incrementation of y.
+        /// </summary>
+        public float optiTrackY;
+        /// <summary>
+        /// z coordinate in real world. one unit is one meter. If standing in front of video wall, moving back results in incrementation of y.
+        /// </summary>
+        public float optiTrackZ;
+        /// <summary>
+        /// keeps track of whether last tick the trackable was inside drawing zone or not.
+        /// </summary>
+        private bool optiTrackInsideDrawingZone = false;
+        /// <summary>
+        /// object of class wristband used for controlling the vibrotactile wristband
+        /// </summary>
+        private Wristband wristband;
+        /// <summary>
+        /// Is set to true when the trackable has passed to the backside of the drawing surface, 
+        /// invalidating all inputs on its way back.
+        /// </summary>
+        bool OptiMovingBack = false;
+        /// <summary>
+        /// The Layer in which the optitrack system was. 0 is drawing layer, -1 is in front, 1 is behind
+        /// </summary>
+        int OptiLayer = 0;
+        /// <summary>
+        /// The path traveled since the last tick
+        /// </summary>
+        double PathTraveled = 0;
+        /// <summary>
         /// Whether or not the mouse is pressed.
         /// </summary>
         private bool mouseDown;
-
-        Image rightImageWithoutOverlay;
-
+        /// <summary>
+        /// A List of lines in the left canvas.
+        /// </summary>
         List<InternalLine> leftLineList;
-        
+        /// <summary>
+        /// A list of lines in the right canvas along with a boolean indicating if they should be drawn.
+        /// </summary>
         List<Tuple<bool, InternalLine>> rightLineList;
-
+        /// <summary>
+        /// The line currently being drawin with optitrack.
+        /// </summary>
         List<Point> currentLine = new List<Point>();
 
-
-
         public MVP_Model(MVP_Presenter presenter)
         {
             programPresenter = presenter;
             historyOfActions = new ActionHistory();
-            //redrawAss = new RedrawAssistant();
-            //overlayItems = new List<Tuple<bool, HashSet<Point>>>();
             rightLineList = new List<Tuple<bool, InternalLine>>();
             canvasActive = false;
             UpdateUI();
             rightImageSize = new ImageDimension(0, 0);
-            leftImageSize = new ImageDimension(0, 0);
+            connector = new OptiTrackConnector();
+            wristband = new Wristband();
+
+            //Set up Optitrack
+            optitrackAvailable = false;
+            if (File.Exists(@"C:\Users\videowall-pc-user\Documents\BP-SketchAssistant\SketchAssistant\optitrack_setup.ttp"))
+            {
+                if (connector.Init(@"C:\Users\videowall-pc-user\Documents\BP-SketchAssistant\SketchAssistant\optitrack_setup.ttp"))
+                {
+                    optitrackAvailable = true;
+                    connector.StartTracking(GetOptiTrackPosition);
+                }
+            }
         }
 
         /**************************/
@@ -127,6 +192,31 @@ namespace SketchAssistantWPF
         /**************************/
 
 
+        /// <summary>
+        /// Check if the Optitrack trackable is in the drawing plane.
+        /// </summary>
+        /// <param name="optiTrackZ">The real world z coordinates of the trackable.</param>
+        /// <returns>If the trackable is in front of the drawing plane</returns>
+        private bool CheckInsideDrawingZone(float optiTrackZ)
+        {
+            if (Math.Abs(optiTrackZ) > WARNING_ZONE_BOUNDARY * 2) return false;
+            return true;
+        }
+
+        /// <summary>
+        /// Function that is called by the OptitrackController to pass frames to the model.
+        /// </summary>
+        /// <param name="frame">An Optitrack Frame</param>
+        void GetOptiTrackPosition(OptiTrack.Frame frame)
+        {
+            if (frame.Trackables.Length >= 1)
+            {
+                optiTrackX = frame.Trackables[0].X;
+                optiTrackY = frame.Trackables[0].Y;
+                optiTrackZ = frame.Trackables[0].Z;
+            }
+        }
+
         /// <summary>
         /// Change the status of whether or not the lines are shown.
         /// </summary>
@@ -143,6 +233,23 @@ namespace SketchAssistantWPF
             }
         }
 
+
+        /// <summary>
+        /// Check if enough distance has been travelled to warrant a vibration.
+        /// </summary>
+        private void CheckPathTraveled()
+        {
+            var a = Math.Abs(previousOptiCursorPosition.X - currentOptiCursorPosition.X);
+            var b = Math.Abs(previousOptiCursorPosition.Y - currentOptiCursorPosition.Y);
+            PathTraveled += Math.Sqrt(Math.Pow(a,2) + Math.Pow(b,2));
+            //Set the Interval of vibrations here
+            if(PathTraveled > 2)
+            {
+                PathTraveled = 0; 
+                //TODO: Activate vibration here
+            }
+        }
+
         /// <summary>
         /// A function that populates the matrixes needed for deletion detection with line data.
         /// </summary>
@@ -167,7 +274,7 @@ namespace SketchAssistantWPF
         /// </summary>
         private void UpdateUI()
         {
-            programPresenter.UpdateUIState(inDrawingMode, historyOfActions.CanUndo(), historyOfActions.CanRedo(), canvasActive, graphicLoaded);
+            programPresenter.UpdateUIState(inDrawingMode, historyOfActions.CanUndo(), historyOfActions.CanRedo(), canvasActive, graphicLoaded, optitrackAvailable, optiTrackInUse);
         }
 
         /// <summary>
@@ -194,6 +301,60 @@ namespace SketchAssistantWPF
             return returnSet;
         }
 
+        /// <summary>
+        /// Converts given point to device-independent pixel.
+        /// </summary>
+        /// <param name="p">real world coordinate</param>
+        /// <returns>The given Point converted to device-independent pixel </returns>
+        private Point ConvertTo96thsOfInch(Point p)
+        {
+            //The position of the optitrack coordinate system
+            // and sizes of the optitrack tracking area relative to the canvas.
+            double OPTITRACK_X_OFFSET = -0.4854;
+            double OPTITRACK_Y_OFFSET = 0.9;
+            double OPTITRACK_CANVAS_HEIGHT = 1.2;
+            double OPTITRACK_X_SCALE = 0.21 * (((1.8316/*size of canvas*/ / 0.0254) * 96) / (1.8316));
+            double OPTITRACK_Y_SCALE = 0.205 * (((1.2 / 0.0254) * 96) / (1.2));
+            //The coordinates on the display
+            double xCoordinate = (p.X - OPTITRACK_X_OFFSET) * OPTITRACK_X_SCALE;
+            double yCoordinate = (OPTITRACK_CANVAS_HEIGHT - (p.Y - OPTITRACK_Y_OFFSET)) * OPTITRACK_Y_SCALE;
+            return new Point(xCoordinate, yCoordinate);
+        }
+
+        /// <summary>
+        /// Updates the Optitrack coordiantes, aswell as the marker for optitrack.
+        /// </summary>
+        /// <param name="p">The new cursor position</param>
+        private void SetCurrentFingerPosition(Point p)
+        {
+            Point correctedPoint = ConvertTo96thsOfInch(p);
+
+
+            if (optiTrackZ < -2.2 * WARNING_ZONE_BOUNDARY && OptiLayer > -1)
+            {
+                OptiLayer = -1; OptiMovingBack = false;
+                programPresenter.SetOverlayColor("optipoint", Brushes.Yellow);
+            }
+            else if (optiTrackZ > 2 * WARNING_ZONE_BOUNDARY && OptiLayer < 1)
+            {
+                programPresenter.SetOverlayColor("optipoint", Brushes.Red);
+                OptiLayer = 1;
+            }
+            else if(optiTrackZ <= 2 * WARNING_ZONE_BOUNDARY && optiTrackZ >= -2.2 * WARNING_ZONE_BOUNDARY){
+                if(OptiLayer > 0)
+                    OptiMovingBack = true;
+                programPresenter.SetOverlayColor("optipoint", Brushes.Green);
+                OptiLayer = 0;
+            }
+
+            currentOptiCursorPosition = correctedPoint;
+            programPresenter.MoveOptiPoint(currentOptiCursorPosition);
+
+            if (optiCursorPositions.Count > 0) { previousOptiCursorPosition = optiCursorPositions.Dequeue(); }
+            else { previousOptiCursorPosition = currentOptiCursorPosition; }
+            optiCursorPositions.Enqueue(currentOptiCursorPosition);
+        }
+
         /********************************************/
         /*** FUNCTIONS TO INTERACT WITH PRESENTER ***/
         /********************************************/
@@ -201,13 +362,10 @@ namespace SketchAssistantWPF
         /// <summary>
         /// A function to update the dimensions of the left and right canvas when the window is resized.
         /// </summary>
-        /// <param name="LeftCanvas">The size of the left canvas.</param>
         /// <param name="RightCanvas">The size of the right canvas.</param>
-        public void ResizeEvent(ImageDimension LeftCanvas, ImageDimension RightCanvas)
+        public void ResizeEvent(ImageDimension RightCanvas)
         {
-            if(LeftCanvas.Height >= 0 && LeftCanvas.Width>= 0) { leftImageSize = LeftCanvas; }
-            if(RightCanvas.Height >= 0 && RightCanvas.Width >= 0) { rightImageSize = RightCanvas; }
-          
+            if (RightCanvas.Height >= 0 && RightCanvas.Width >= 0) { rightImageSize = RightCanvas; }
             RepopulateDeletionMatrixes();
         }
 
@@ -216,6 +374,8 @@ namespace SketchAssistantWPF
         /// </summary>
         public void ResetRightImage()
         {
+            if(currentLine.Count > 0)
+                FinishCurrentLine(true);
             rightLineList.Clear();
             programPresenter.PassLastActionTaken(historyOfActions.Reset());
             programPresenter.ClearRightLines();
@@ -229,29 +389,11 @@ namespace SketchAssistantWPF
         /// <param name="listOfLines">The List of Lines to be displayed in the left image.</param>
         public void SetLeftLineList(int width, int height, List<InternalLine> listOfLines)
         {
-            leftImageSize = new ImageDimension(width, height);
             rightImageSize = new ImageDimension(width, height);
             leftLineList = listOfLines;
             graphicLoaded = true;
             programPresenter.UpdateLeftLines(leftLineList);
             CanvasActivated();
-            /*
-            var workingCanvas = GetEmptyCanvas(width, height);
-            var workingGraph = Graphics.FromImage(workingCanvas);
-            leftLineList = listOfLines;
-            //redrawAss = new RedrawAssistant(leftLineList);
-            //overlayItems = redrawAss.Initialize(markerRadius);
-            //Lines
-            foreach (InternalLine line in leftLineList)
-            {
-                line.DrawLine(workingGraph);
-            }
-            leftImage = workingCanvas;
-            programPresenter.UpdateLeftImage(leftImage);
-            //Set right image to same size as left image and delete linelist
-            DrawEmptyCanvasRight();
-            rightLineList = new List<Tuple<bool, InternalLine>>();
-            */
         }
 
         /// <summary>
@@ -286,7 +428,6 @@ namespace SketchAssistantWPF
                     default:
                         break;
                 }
-                //TODO: For the person implementing overlay: Add check if overlay needs to be added
                 programPresenter.UpdateRightLines(rightLineList);
             }
             RepopulateDeletionMatrixes();
@@ -317,7 +458,6 @@ namespace SketchAssistantWPF
                     default:
                         break;
                 }
-                //TODO: For the person implementing overlay: Add check if overlay needs to be added
                 programPresenter.UpdateRightLines(rightLineList);
                 RepopulateDeletionMatrixes();
             }
@@ -330,10 +470,33 @@ namespace SketchAssistantWPF
         /// <param name="nowDrawing">The new drawingstate of the program</param>
         public void ChangeState(bool nowDrawing)
         {
+            if(inDrawingMode && !nowDrawing && currentLine.Count > 0 && optiTrackInUse)
+                FinishCurrentLine(true);
             inDrawingMode = nowDrawing;
             UpdateUI();
         }
-        
+
+        /// <summary>
+        /// The function called by the Presenter to set a variable which describes if OptiTrack is in use
+        /// </summary>
+        /// <param name="usingOptiTrack">The status of optitrack button</param>
+        public void SetOptiTrack(bool usingOptiTrack)
+        {
+            optiTrackInUse = usingOptiTrack;
+            if (usingOptiTrack && optiTrackX == 0 && optiTrackY == 0 && optiTrackZ == 0)
+            {
+                programPresenter.PassWarning("Trackable not detected, please check if OptiTrack is activated and Trackable is recognized");
+                optiTrackInUse = false;
+                //Disable optipoint
+                programPresenter.SetOverlayStatus("optipoint", false, currentCursorPosition);
+            }
+            else
+            {
+                //Enable optipoint
+                programPresenter.SetOverlayStatus("optipoint", true, currentCursorPosition);
+            }
+        }
+
         /// <summary>
         /// Updates the current cursor position of the model.
         /// </summary>
@@ -347,32 +510,69 @@ namespace SketchAssistantWPF
         /// <summary>
         /// Start a new Line, when the Mouse is pressed down.
         /// </summary>
-        public void MouseDown()
+        public void StartNewLine()
         {
             mouseDown = true;
-            if (inDrawingMode && mouseDown)
+            if (inDrawingMode)
+            {
+                if(optiTrackInUse)
+                {
+                    currentLine.Clear();
+                    currentLine.Add(currentOptiCursorPosition);
+                }
+                else if (programPresenter.IsMousePressed())
+                {
+                    currentLine.Clear();
+                    currentLine.Add(currentCursorPosition);
+                }
+            }
+        }
+
+        /// <summary>
+        /// Finish the current Line, when the pressed Mouse is released.
+        /// </summary>
+        /// <param name="valid">Whether the up event is valid or not</param>
+        public void FinishCurrentLine(bool valid)
+        {
+
+            mouseDown = false;
+            if (valid)
+            {
+                if (inDrawingMode && currentLine.Count > 0)
+                {
+                    InternalLine newLine = new InternalLine(currentLine, rightLineList.Count);
+                    rightLineList.Add(new Tuple<bool, InternalLine>(true, newLine));
+                    newLine.PopulateMatrixes(isFilledMatrix, linesMatrix);
+                    programPresenter.PassLastActionTaken(historyOfActions.AddNewAction(new SketchAction(SketchAction.ActionType.Draw, newLine.GetID())));
+                    //TODO: For the person implementing overlay: Add check if overlay needs to be added
+                    programPresenter.UpdateRightLines(rightLineList);
+                    currentLine.Clear();
+                    programPresenter.UpdateCurrentLine(currentLine);
+                }
+            }
+            else
             {
                 currentLine.Clear();
-                currentLine.Add(currentCursorPosition);
             }
+            UpdateUI();
         }
 
         /// <summary>
         /// Finish the current Line, when the pressed Mouse is released.
+        /// Overload that is used to pass a list of points to be used when one is available.
         /// </summary>
-        public void MouseUp()
+        /// <param name="p">The list of points</param>
+        public void FinishCurrentLine(List<Point> p)
         {
             mouseDown = false;
             if (inDrawingMode && currentLine.Count > 0)
             {
-                InternalLine newLine = new InternalLine(currentLine, rightLineList.Count);
+                InternalLine newLine = new InternalLine(p, rightLineList.Count);
                 rightLineList.Add(new Tuple<bool, InternalLine>(true, newLine));
                 newLine.PopulateMatrixes(isFilledMatrix, linesMatrix);
                 programPresenter.PassLastActionTaken(historyOfActions.AddNewAction(new SketchAction(SketchAction.ActionType.Draw, newLine.GetID())));
-                //TODO: For the person implementing overlay: Add check if overlay needs to be added
                 programPresenter.UpdateRightLines(rightLineList);
                 currentLine.Clear();
-                programPresenter.UpdateCurrentLine(currentLine);
             }
             UpdateUI();
         }
@@ -384,17 +584,64 @@ namespace SketchAssistantWPF
         {
             if (cursorPositions.Count > 0) { previousCursorPosition = cursorPositions.Dequeue(); }
             else { previousCursorPosition = currentCursorPosition; }
-            cursorPositions.Enqueue(currentCursorPosition);
-            //Drawing
-            if (inDrawingMode && programPresenter.IsMousePressed())
+
+            if(optitrackAvailable)
+                SetCurrentFingerPosition(new Point(optiTrackX, optiTrackY));
+            
+
+            if (optiTrackInUse && inDrawingMode && !OptiMovingBack) // optitrack is being used
             {
-                currentLine.Add(currentCursorPosition);
-                programPresenter.UpdateCurrentLine(currentLine);
+                //outside of drawing zone
+                if (!CheckInsideDrawingZone(optiTrackZ))
+                {
+                    //Check if trackable was in drawing zone last tick & program is in drawing mode-> finish line
+                    if (optiTrackInsideDrawingZone && inDrawingMode) 
+                    {
+                        optiTrackInsideDrawingZone = false;
+                        FinishCurrentLine(true);
+                    }
+                }
+                else //Draw with optitrack, when in drawing zone
+                {
+                    //Optitrack wasn't in the drawing zone last tick -> start a new line
+                    if (!optiTrackInsideDrawingZone)
+                    {
+                        optiTrackInsideDrawingZone = true;
+                        StartNewLine();
+                    }
+                    else currentLine.Add(currentOptiCursorPosition);
+                    programPresenter.UpdateCurrentLine(currentLine);
+                    if (optiTrackZ > WARNING_ZONE_BOUNDARY)
+                    {
+                        wristband.PushForward();
+                    }
+                    else if (optiTrackZ < -1 * WARNING_ZONE_BOUNDARY)
+                    {
+                        wristband.PushBackward();
+                    }
+                }
+            }
+            else if( !optiTrackInUse && inDrawingMode)
+            {
+                //drawing without optitrack
+                cursorPositions.Enqueue(currentCursorPosition);
+                if (inDrawingMode && programPresenter.IsMousePressed())
+                {
+                    currentLine.Add(currentCursorPosition);
+                    //programPresenter.UpdateCurrentLine(currentLine);
+                }
+
             }
-            //Deleting
-            if (!inDrawingMode && programPresenter.IsMousePressed())
+
+            //Deletion mode for optitrack and regular use
+            if (!inDrawingMode)
             {
-                List<Point> uncheckedPoints = GeometryCalculator.BresenhamLineAlgorithm(previousCursorPosition, currentCursorPosition);
+                List<Point> uncheckedPoints = new List<Point>();
+                if (programPresenter.IsMousePressed() && !optiTrackInUse) //without optitrack
+                    uncheckedPoints = GeometryCalculator.BresenhamLineAlgorithm(previousCursorPosition, currentCursorPosition);
+                if(optiTrackInUse && CheckInsideDrawingZone(optiTrackZ)  && !OptiMovingBack) //with optitrack
+                    uncheckedPoints = GeometryCalculator.BresenhamLineAlgorithm(previousOptiCursorPosition, currentOptiCursorPosition);
+
                 foreach (Point currPoint in uncheckedPoints)
                 {
                     HashSet<int> linesToDelete = CheckDeletionMatrixesAroundPoint(currPoint, deletionRadius);
@@ -406,44 +653,12 @@ namespace SketchAssistantWPF
                             rightLineList[lineID] = new Tuple<bool, InternalLine>(false, rightLineList[lineID].Item2);
                         }
                         RepopulateDeletionMatrixes();
-                        //TODO: For the person implementing overlay: Add check if overlay needs to be added
                         programPresenter.UpdateRightLines(rightLineList);
                     }
                 }
             }
         }
 
-        /// <summary>
-        /// A helper Function that updates the markerRadius & deletionRadius, considering the size of the canvas.
-        /// </summary>
-        /// <param name="CanvasSize">The size of the canvas</param>
-        public void UpdateSizes(ImageDimension CanvasSize)
-        {
-            if (rightImageWithoutOverlay != null)
-            {
-                int widthImage = rightImageSize.Width;
-                int heightImage = rightImageSize.Height;
-                int widthBox = CanvasSize.Width;
-                int heightBox = CanvasSize.Height;
-
-                float imageRatio = (float)widthImage / (float)heightImage;
-                float containerRatio = (float)widthBox / (float)heightBox;
-                float zoomFactor = 0;
-                if (imageRatio >= containerRatio)
-                {
-                    //Image is wider than it is high
-                    zoomFactor = (float)widthImage / (float)widthBox;
-                }
-                else
-                {
-                    //Image is higher than it is wide
-                    zoomFactor = (float)heightImage / (float)heightBox;
-                }
-                markerRadius = (int)(10 * zoomFactor);
-                deletionRadius = (int)(5 * zoomFactor);
-            }
-        }
-
         /// <summary>
         /// If there is unsaved progress.
         /// </summary>

SketchAssistant/SketchAssistantWPF/MVP_Presenter.cs

@@ -8,6 +8,8 @@ using System.Windows.Controls;
 using System.Windows.Input;
 using System.Windows.Media;
 using System.Windows.Shapes;
+using OptiTrack;
+using System.Windows.Ink;
 
 namespace SketchAssistantWPF
 {
@@ -25,14 +27,22 @@ namespace SketchAssistantWPF
         /// A dictionary connecting the id of an InternalLine with the respective Polyline in the right canvas.
         /// </summary>
         Dictionary<int, Shape> rightPolyLines;
-
-        ImageDimension CanvasSizeLeft = new ImageDimension(0,0);
-
-        ImageDimension CanvasSizeRight = new ImageDimension(0, 0);
-
-        ImageDimension ImageSizeLeft = new ImageDimension(0, 0);
-
-        ImageDimension ImageSizeRight = new ImageDimension(0, 0);
+        /// <summary>
+        /// The actual size of the left canvas.
+        /// </summary>
+        ImageDimension canvasSizeLeft = new ImageDimension(0, 0);
+        /// <summary>
+        /// The actual size of the right canvas.
+        /// </summary>
+        ImageDimension canvasSizeRight = new ImageDimension(0, 0);
+        /// <summary>
+        /// A list of line similarities, resulting in the similarity of the whole image.
+        /// </summary>
+        List<double> imageSimilarity = new List<double>();
+        /// <summary>
+        /// The lines in the left canvas.
+        /// </summary>
+        List<InternalLine> leftLines = new List<InternalLine>();
 
         /*******************/
         /*** ENUMERATORS ***/
@@ -40,9 +50,9 @@ namespace SketchAssistantWPF
 
         public enum MouseAction
         {
-            Click,
             Down,
             Up,
+            Up_Invalid,
             Move
         }
 
@@ -60,7 +70,6 @@ namespace SketchAssistantWPF
         {
             programView = form;
             programModel = new MVP_Model(this);
-            //Initialize Class Variables
             fileImporter = new FileImporter();
         }
 
@@ -75,38 +84,52 @@ namespace SketchAssistantWPF
         /// <param name="rightPBS">The new size of the left picture box.</param>
         public void Resize(Tuple<int, int> leftPBS, Tuple<int, int> rightPBS)
         {
-            CanvasSizeLeft.ChangeDimension(leftPBS.Item1, leftPBS.Item2);
-            CanvasSizeRight.ChangeDimension(rightPBS.Item1, rightPBS.Item2);
-            programModel.UpdateSizes(CanvasSizeRight);
-            programModel.ResizeEvent(CanvasSizeLeft, CanvasSizeRight);
+            canvasSizeLeft.ChangeDimension(leftPBS.Item1, leftPBS.Item2);
+            canvasSizeRight.ChangeDimension(rightPBS.Item1, rightPBS.Item2);
+            programModel.ResizeEvent(canvasSizeRight);
         }
 
         /// <summary>
-        /// Display a new FileDialog to load a collection of lines.
+        /// Display a new FileDialog to a svg drawing.
         /// </summary>
-        public void ExamplePictureToolStripMenuItemClick()
+        /// <returns>True if loading was a success</returns>
+        public bool SVGToolStripMenuItemClick()
         {
-            var okToContinue = true;
+            var okToContinue = true; bool returnval = false;
             if (programModel.HasUnsavedProgress())
             {
                 okToContinue = programView.ShowWarning("You have unsaved progress. Continue?");
             }
             if (okToContinue)
             {
-                var fileNameTup = programView.openNewDialog("Interactive Sketch-Assistant Drawing|*.isad");
+                var fileNameTup = programView.openNewDialog("Scalable Vector Graphics|*.svg");
                 if (!fileNameTup.Item1.Equals("") && !fileNameTup.Item2.Equals(""))
                 {
                     programView.SetToolStripLoadStatus(fileNameTup.Item2);
-                    Tuple<int, int, List<InternalLine>> values = fileImporter.ParseISADInputFile(fileNameTup.Item1);
-                    programModel.SetLeftLineList(values.Item1, values.Item2, values.Item3);
-
-                    programModel.ResetRightImage();
-                    programModel.CanvasActivated();
-                    programModel.ChangeState(true);
-                    programView.EnableTimer();
-                    ClearRightLines();
+                    try
+                    {
+                        Tuple<int, int, List<InternalLine>> values = fileImporter.ParseSVGInputFile(fileNameTup.Item1, programModel.leftImageBoxWidth, programModel.leftImageBoxHeight);
+                        values.Item3.ForEach(line => line.MakePermanent(0)); //Make all lines permanent
+                        programModel.SetLeftLineList(values.Item1, values.Item2, values.Item3);
+                        programModel.ResizeEvent(canvasSizeRight);
+                        programModel.ResetRightImage();
+                        programModel.CanvasActivated();
+                        programModel.ChangeState(true);
+                        programView.EnableTimer();
+                        ClearRightLines();
+                        returnval = true;
+                    }
+                    catch (FileImporterException ex)
+                    {
+                        programView.ShowInfoMessage(ex.ToString());
+                    }
+                    catch (Exception ex)
+                    {
+                        programView.ShowInfoMessage("exception occured while trying to parse svg file:\n\n" + ex.ToString() + "\n\n" + ex.StackTrace);
+                    }
                 }
             }
+            return returnval;
         }
 
         /// <summary>
@@ -118,6 +141,35 @@ namespace SketchAssistantWPF
             programModel.ChangeState(NowDrawing);
         }
 
+        /// <summary>
+        /// Gets whether the program is in drawing state or not.
+        /// </summary>
+        /// <returns></returns>
+        public bool GetDrawingState()
+        {
+            return programModel.inDrawingMode;
+        }
+
+        /// <summary>
+        /// Gets whether Optitrack is in use or not.
+        /// </summary>
+        /// <returns>Return optiTrackInUse</returns>
+        public bool GetOptitrackActive()
+        {
+            return programModel.optiTrackInUse;
+        }
+
+        /// <summary>
+        /// Pass-through function to change the OptiTrack-in-use state of the model
+        /// </summary>
+        public void ChangeOptiTrack(bool usingOptiTrack)
+        {
+            if (programModel.optitrackAvailable)
+            {
+                programModel.SetOptiTrack(usingOptiTrack);
+            }
+        }
+
         /// <summary>
         /// Pass-trough function to undo an action.
         /// </summary>
@@ -154,7 +206,7 @@ namespace SketchAssistantWPF
             }
             if (okToContinue)
             {
-                programModel.ResizeEvent(CanvasSizeLeft, CanvasSizeRight);
+                programModel.ResizeEvent(canvasSizeRight);
                 programModel.ResetRightImage();
                 programModel.CanvasActivated();
                 programModel.ChangeState(true);
@@ -167,7 +219,7 @@ namespace SketchAssistantWPF
         /// Pass-trough when the mouse is moved.
         /// </summary>
         /// <param name="mouseAction">The action which is sent by the View.</param>
-        /// <param name="e">The Mouse event arguments.</param>
+        /// <param name="position">The position of the mouse.</param>
         public void MouseEvent(MouseAction mouseAction, Point position)
         {
             switch (mouseAction)
@@ -184,24 +236,37 @@ namespace SketchAssistantWPF
         /// Pass-trough function that calls the correct Mouse event of the model, when the mouse is clicked.
         /// </summary>
         /// <param name="mouseAction">The action which is sent by the View.</param>
-        /// <param name="e">The Mouse event arguments.</param>
-        public void MouseEvent(MouseAction mouseAction)
+        /// <param name="strokes">The Strokes.</param>
+        public void MouseEvent(MouseAction mouseAction, StrokeCollection strokes)
         {
-            switch (mouseAction)
+
+            if (!programModel.optiTrackInUse)
             {
-                case MouseAction.Click:
-                    programModel.MouseDown();
-                    programModel.Tick();
-                    programModel.MouseUp();
-                    break;
-                case MouseAction.Down:
-                    programModel.MouseDown();
-                    break;
-                case MouseAction.Up:
-                    programModel.MouseUp();
-                    break;
-                default:
-                    break;
+                switch (mouseAction)
+                {
+                    case MouseAction.Down:
+                        programModel.StartNewLine();
+                        break;
+                    case MouseAction.Up:
+                        if (strokes.Count > 0)
+                        {
+                            StylusPointCollection sPoints = strokes.First().StylusPoints;
+                            List<Point> points = new List<Point>();
+                            foreach (StylusPoint p in sPoints)
+                                points.Add(new Point(p.X, p.Y));
+                            programModel.FinishCurrentLine(points);
+                        }
+                        else
+                        {
+                            programModel.FinishCurrentLine(true);
+                        }
+                        break;
+                    case MouseAction.Up_Invalid:
+                        programModel.FinishCurrentLine(false);
+                        break;
+                    default:
+                        break;
+                }
             }
         }
 
@@ -237,6 +302,8 @@ namespace SketchAssistantWPF
         {
             programView.RemoveAllRightLines();
             rightPolyLines = new Dictionary<int, Shape>();
+            //Reset the similarity display
+            UpdateSimilarityScore(Double.NaN);
         }
 
         /// <summary>
@@ -244,7 +311,7 @@ namespace SketchAssistantWPF
         /// </summary>
         public void UpdateRightLines(List<Tuple<bool, InternalLine>> lines)
         {
-            foreach(Tuple<bool, InternalLine> tup in lines)
+            foreach (Tuple<bool, InternalLine> tup in lines)
             {
                 var status = tup.Item1;
                 var line = tup.Item2;
@@ -260,14 +327,26 @@ namespace SketchAssistantWPF
                     else
                     {
                         Ellipse newPoint = new Ellipse();
-                        newPoint.SetValue(Canvas.LeftProperty, line.point.X);
-                        newPoint.SetValue(Canvas.TopProperty, line.point.Y);
                         rightPolyLines.Add(line.GetID(), newPoint);
-                        programView.AddNewPointRight(newPoint);
+                        programView.AddNewPointRight(newPoint, line);
                     }
                 }
                 SetVisibility(rightPolyLines[line.GetID()], status);
             }
+            //Calculate similarity scores 
+            UpdateSimilarityScore(Double.NaN); var templist = lines.Where(tup => tup.Item1).ToList();
+            if (leftLines.Count > 0)
+            {
+                for (int i = 0; i < leftLines.Count; i++)
+                {
+                    if (templist.Count == i) break;
+                    UpdateSimilarityScore(GeometryCalculator.CalculateSimilarity(templist[i].Item2, leftLines[i]));
+                }
+            }
+            else if (templist.Count > 1)
+            {
+                UpdateSimilarityScore(GeometryCalculator.CalculateSimilarity(templist[templist.Count - 2].Item2, templist[templist.Count - 1].Item2));
+            }
         }
 
         /// <summary>
@@ -285,6 +364,8 @@ namespace SketchAssistantWPF
             }
             programView.SetCanvasState("LeftCanvas", true);
             programView.SetCanvasState("RightCanvas", true);
+
+            leftLines = lines;
         }
 
         /// <summary>
@@ -296,23 +377,49 @@ namespace SketchAssistantWPF
         /// <param name="canRedo">If actions in the model can be redone</param>
         /// <param name="canvasActive">If the right canvas is active</param>
         /// <param name="graphicLoaded">If an image is loaded in the model</param>
-        public void UpdateUIState(bool inDrawingMode, bool canUndo, bool canRedo, bool canvasActive, bool graphicLoaded)
+        /// <param name="optiTrackAvailable">If there is an optitrack system available</param>
+        /// <param name="optiTrackInUse">If the optitrack system is active</param>
+        public void UpdateUIState(bool inDrawingMode, bool canUndo, bool canRedo, bool canvasActive,
+                bool graphicLoaded, bool optiTrackAvailable, bool optiTrackInUse)
         {
             Dictionary<String, MainWindow.ButtonState> dict = new Dictionary<String, MainWindow.ButtonState> {
                 {"canvasButton", MainWindow.ButtonState.Enabled }, {"drawButton", MainWindow.ButtonState.Disabled}, {"deleteButton",MainWindow.ButtonState.Disabled },
-                {"undoButton", MainWindow.ButtonState.Disabled },{"redoButton",  MainWindow.ButtonState.Disabled}};
+                {"undoButton", MainWindow.ButtonState.Disabled },{"redoButton",  MainWindow.ButtonState.Disabled}, {"drawWithOptiButton", MainWindow.ButtonState.Disabled}};
 
             if (canvasActive)
             {
                 if (inDrawingMode)
                 {
-                    dict["drawButton"] = MainWindow.ButtonState.Active;
-                    dict["deleteButton"] = MainWindow.ButtonState.Enabled;
+                    if (optiTrackAvailable)
+                    {
+                        if (optiTrackInUse)
+                        {
+                            dict["drawButton"] = MainWindow.ButtonState.Enabled;
+                            dict["drawWithOptiButton"] = MainWindow.ButtonState.Active;
+                            dict["deleteButton"] = MainWindow.ButtonState.Enabled;
+                        }
+                        else
+                        {
+                            dict["drawButton"] = MainWindow.ButtonState.Active;
+                            dict["drawWithOptiButton"] = MainWindow.ButtonState.Enabled;
+                            dict["deleteButton"] = MainWindow.ButtonState.Enabled;
+                        }
+                    }
+                    else
+                    {
+                        dict["drawButton"] = MainWindow.ButtonState.Active;
+                        dict["deleteButton"] = MainWindow.ButtonState.Enabled;
+                    }
+
                 }
                 else
                 {
                     dict["drawButton"] = MainWindow.ButtonState.Enabled;
                     dict["deleteButton"] = MainWindow.ButtonState.Active;
+                    if (optiTrackAvailable)
+                    {
+                        dict["drawWithOptiButton"] = MainWindow.ButtonState.Enabled;
+                    }
                 }
                 if (canUndo) { dict["undoButton"] = MainWindow.ButtonState.Enabled; }
                 if (canRedo) { dict["redoButton"] = MainWindow.ButtonState.Enabled; }
@@ -335,6 +442,17 @@ namespace SketchAssistantWPF
             programView.ShowInfoMessage(msg);
         }
 
+        /// <summary>
+        /// Pass-through function to desplay an Warning message in the view
+        /// </summary>
+        /// <param name="msg">The message.</param>
+
+        /// <returns>True if the user confirms (Yes), negative if he doesn't (No)</returns>
+        public bool PassWarning(String msg)
+        {
+            return programView.ShowWarning(msg);
+        }
+
         /// <summary>
         /// Pass-trough function to update the display of the last action taken.
         /// </summary>
@@ -353,71 +471,155 @@ namespace SketchAssistantWPF
             return programView.IsMousePressed();
         }
 
-        /*************************/
-        /*** HELPING FUNCTIONS ***/
-        /*************************/
+        public void PassOptiTrackMessage(String stringToPass)
+        {
+            programView.SetOptiTrackText(stringToPass);
+        }
 
         /// <summary>
-        /// Sets the visibility of a polyline.
+        /// Update the similarity score displayed in the UI.
         /// </summary>
-        /// <param name="line">The polyline</param>
-        /// <param name="visible">Whether or not it should be visible.</param>
-        private void SetVisibility(Shape line, bool visible)
+        /// <param name="score">Score will be reset if NaN is passed, 
+        /// will be ignored if the score is not between 0 and 1</param>
+        public void UpdateSimilarityScore(double score)
         {
-            if (!visible)
+            if (Double.IsNaN(score))
             {
-                line.Opacity = 0.00001;
+                imageSimilarity.Clear();
+                programView.SetImageSimilarityText("");
             }
             else
             {
-                line.Opacity = 1;
+                if (score >= 0 && score <= 1) imageSimilarity.Add(score);
+                programView.SetImageSimilarityText((imageSimilarity.Sum() / imageSimilarity.Count).ToString());
             }
         }
 
         /// <summary>
-        /// A function that calculates the coordinates of a point on a zoomed in image.
+        /// Change the color of an overlay item.
         /// </summary>
-        /// <param name="">The position of the mouse cursor</param>
-        /// <returns>The real coordinates of the mouse cursor on the image</returns>
-        private Point ConvertCoordinates(Point cursorPosition)
+        /// <param name="name">The name of the item in the overlay dictionary</param>
+        /// <param name="color">The color of the item</param>
+        public void SetOverlayColor(String name, Brush color)
         {
-            if (!programModel.canvasActive) { return cursorPosition; }
-            if (programModel.canvasActive && !programModel.graphicLoaded) { return cursorPosition; }
-            ImageDimension rightImageDimensions = programModel.rightImageSize;
-            Point realCoordinates = new Point(0, 0);
+            Shape shape = new Ellipse();
+            if(((MainWindow)programView).overlayDictionary.ContainsKey(name))
+            {
+                shape = ((MainWindow)programView).overlayDictionary[name];
+                
+                if(name.Substring(0, 7).Equals("dotLine"))
+                    shape.Stroke = color;
+                else
+                    shape.Fill = color;
+            }
+        }
 
-            int widthImage = rightImageDimensions.Width;
-            int heightImage = rightImageDimensions.Height;
-            int widthBox = programModel.rightImageBoxWidth;
-            int heightBox = programModel.rightImageBoxHeight;
+        /// <summary>
+        /// Change the properties of an overlay item.
+        /// </summary>
+        /// <param name="name">The name of the item in the overlay dictionary</param>
+        /// <param name="visible">If the element should be visible</param>
+        /// <param name="position">The new position of the element</param>
+        public void SetOverlayStatus(String name, bool visible, Point position)
+        {
+            Shape shape = new Ellipse(); double visibility = 1; double xDif = 0; double yDif = 0;
+            Point point = ConvertRightCanvasCoordinateToOverlay(position);
+            
+            switch (name)
+            {
+                case "optipoint":
+                    shape = ((MainWindow)programView).overlayDictionary["optipoint"];
+                    visibility = 0.75; xDif = 2.5; yDif = 2.5;
+                    break;
+                case "startpoint":
+                    shape = ((MainWindow)programView).overlayDictionary["startpoint"];
+                    xDif = ((MainWindow)programView).markerRadius; yDif = xDif;
+                    break;
+                case "endpoint":
+                    shape = ((MainWindow)programView).overlayDictionary["endpoint"];
+                    xDif = ((MainWindow)programView).markerRadius; yDif = xDif;
+                    break;
+                default:
+                    Console.WriteLine("Unknown Overlay Item. Please check in MVP_Presenter if this item exists.");
+                    return;
+            }
+            if (visible) shape.Opacity = visibility;
+            else shape.Opacity = 0.00001;
+            shape.Margin = new Thickness(point.X - xDif, point.Y - yDif, 0, 0);
+        }
 
-            if (heightImage == 0 && widthImage == 0)
+        /// <summary>
+        /// Change the properties of an overlay item.
+        /// </summary>
+        /// <param name="name">The name of the item in the overlay dictionary</param>
+        /// <param name="visible">If the element should be visible</param>
+        /// <param name="pos1">The new position of the element</param>
+        /// <param name="pos2">The new position of the element</param>
+        public void SetOverlayStatus(String name, bool visible, Point pos1, Point pos2)
+        {
+            Shape shape = new Ellipse();
+            switch (name.Substring(0, 7))
             {
-                return cursorPosition;
+                case "dotLine":
+                    if (((MainWindow)programView).overlayDictionary.ContainsKey(name))
+                    {
+                        shape = ((MainWindow)programView).overlayDictionary[name];
+                        break;
+                    }
+                    goto default;
+                default:
+                    SetOverlayStatus(name, visible, pos1);
+                    return;
             }
+            if (visible) shape.Opacity = 1;
+            else shape.Opacity = 0.00001;
+            Point p1 = ConvertRightCanvasCoordinateToOverlay(pos1); Point p2 = ConvertRightCanvasCoordinateToOverlay(pos2);
+            ((Line)shape).X1 = p1.X; ((Line)shape).X2 = p2.X; ((Line)shape).Y1 = p1.Y; ((Line)shape).Y2 = p2.Y;
+        }
+
+        /// <summary>
+        /// Move the optitrack pointer to a new position.
+        /// </summary>
+        /// <param name="position">Position relative to the Rightcanvas</param>
+        public void MoveOptiPoint(Point position)
+        {
+            Point point = ConvertRightCanvasCoordinateToOverlay(position);
+            Shape shape = ((MainWindow)programView).overlayDictionary["optipoint"];
+            shape.Margin = new Thickness(point.X - 2.5, point.Y - 2.5, 0, 0);
+        }
+
+        /*************************/
+        /*** HELPING FUNCTIONS ***/
+        /*************************/
 
-            float imageRatio = (float)widthImage / (float)heightImage;
-            float containerRatio = (float)widthBox / (float)heightBox;
+        /// <summary>
+        /// Convert point relative to the right canvas to a point relative to the overlay canvas.
+        /// </summary>
+        /// <param name="p">The point to convert.</param>
+        /// <returns>The respective overlay canvas.</returns>
+        private Point ConvertRightCanvasCoordinateToOverlay(Point p)
+        {
+            MainWindow main = (MainWindow)programView;
+            double xDif = (main.CanvasLeftEdge.ActualWidth + main.LeftCanvas.ActualWidth + main.CanvasSeperator.ActualWidth);
+            double yDif = (main.ButtonToolbar.ActualHeight);
+            return new Point(p.X + xDif, p.Y + yDif);
+        }
 
-            if (imageRatio >= containerRatio)
+        /// <summary>
+        /// Sets the visibility of a polyline.
+        /// </summary>
+        /// <param name="line">The polyline</param>
+        /// <param name="visible">Whether or not it should be visible.</param>
+        private void SetVisibility(Shape line, bool visible)
+        {
+            if (!visible)
             {
-                //Image is wider than it is high
-                float zoomFactor = (float)widthImage / (float)widthBox;
-                float scaledHeight = heightImage / zoomFactor;
-                float filler = (heightBox - scaledHeight) / 2;
-                realCoordinates.X = (int)(cursorPosition.X * zoomFactor);
-                realCoordinates.Y = (int)((cursorPosition.Y - filler) * zoomFactor);
+                line.Opacity = 0.00001;
             }
             else
             {
-                //Image is higher than it is wide
-                float zoomFactor = (float)heightImage / (float)heightBox;
-                float scaledWidth = widthImage / zoomFactor;
-                float filler = (widthBox - scaledWidth) / 2;
-                realCoordinates.X = (int)((cursorPosition.X - filler) * zoomFactor);
-                realCoordinates.Y = (int)(cursorPosition.Y * zoomFactor);
+                line.Opacity = 1;
             }
-            return realCoordinates;
         }
     }
 }

SketchAssistant/SketchAssistantWPF/MVP_View.cs

@@ -5,6 +5,7 @@ using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Ink;
 using System.Windows.Shapes;
 
 namespace SketchAssistantWPF
@@ -106,7 +107,8 @@ namespace SketchAssistantWPF
         /// Adds a point to the right canvas
         /// </summary>
         /// <param name="newPoint">The point</param>
-        void AddNewPointRight(Ellipse newPoint);
+        /// <param name="line">The original line object</param>
+        void AddNewPointRight(Ellipse newPoint, InternalLine line);
 
         /// <summary>
         /// Adds a point to the left canvas
@@ -119,5 +121,19 @@ namespace SketchAssistantWPF
         /// </summary>
         /// <returns>The cursor Position</returns>
         Point GetCursorPosition();
+
+        /// <summary>
+        /// Sets the contents of the last action taken indicator label.
+        /// </summary>
+        /// <param name="message">The new contents</param>
+        void SetOptiTrackText(String message);
+
+        /// <summary>
+        /// Sets the contents of the status bar label containing
+        /// the similarity score of the left and right image.
+        /// </summary>
+        /// <param name="message">The message to be set, 
+        /// will be set to the default value if left empty.</param>
+        void SetImageSimilarityText(string message);
     }
 }

SketchAssistant/SketchAssistantWPF/MainWindow.xaml

@@ -1,33 +1,26 @@
-<Window x:Class="SketchAssistantWPF.MainWindow"
-        xmlns:local="clr-namespace:SketchAssistantWPF"
-        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        mc:Ignorable="d"
-        Title="Sketch Assistant" Height="612" Width="914" SizeChanged="Window_SizeChanged">
-    <Grid>
+<Window x:Class="SketchAssistantWPF.MainWindow" 
+    xmlns:local="clr-namespace:SketchAssistantWPF" 
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" Title="Sketch Assistant" Height="612" Width="914" SizeChanged="Window_SizeChanged">
+    <Grid x:Name="RootGrid">
         <Grid.ColumnDefinitions>
-            <ColumnDefinition Width="auto"/>
-            <ColumnDefinition Width="auto"/>
-            <ColumnDefinition Width="170*"/>
-            <ColumnDefinition Width="55*"/>
-            <ColumnDefinition Width="225*"/>
             <ColumnDefinition Width="5"/>
-            <ColumnDefinition Width="226*"/>
-            <ColumnDefinition Width="225*"/>
-            <ColumnDefinition Width="auto"/>
-            <ColumnDefinition Width="auto"/>
+            <ColumnDefinition Width="*"/>
+            <ColumnDefinition Width="5"/>
+            <ColumnDefinition Width="*"/>
+            <ColumnDefinition Width="5"/>
         </Grid.ColumnDefinitions>
         <Grid.RowDefinitions>
             <RowDefinition Height="auto"/>
             <RowDefinition Height="*"/>
             <RowDefinition Height="auto"/>
         </Grid.RowDefinitions>
-        <ToolBar x:Name="MenuToolbar" Grid.Column="0" Grid.ColumnSpan="5" Grid.Row="0" Background="LightGray">
-            <Menu Background="LightGray">
+        <StackPanel x:Name="MenuToolbar" Orientation="Horizontal" Grid.Column="0" Grid.ColumnSpan="2" Grid.Row="0" Background="LightGray">
+            <Menu Background="LightGray" VerticalAlignment="Center" Padding="5,0,0,0">
                 <MenuItem x:Name="LoadMenuButton" Header="Load">
-                    <MenuItem x:Name="SVGMenuButton" Header="Load SVG File" Click="MenuItem_Click"/>
+                    <MenuItem x:Name="SVGMenuButton" Header="Import SVG File" Click="SVGMenuItem_Click"/>
                 </MenuItem>
                 <MenuItem x:Name="EditMenuButton" Header="Edit">
                     <MenuItem x:Name="CanvasMenuButton" Header="New Canvas" Click="CanvasButton_Click"/>
@@ -37,13 +30,15 @@
                         <MenuItem x:Name="DebugOne" Header="Debug 1" Click="DebugOne_Click"/>
                         <MenuItem x:Name="DebugTwo" Header="Debug 2" Click="DebugTwo_Click"/>
                         <MenuItem x:Name="DebugThree" Header="Debug 3" Click="DebugThree_Click"/>
+                        <MenuItem x:Name="DebugFour" Header="Debug 4" Click="DebugFour_Click"/>
                     </MenuItem>
                 </MenuItem>
             </Menu>
-        </ToolBar>
-        <!-- All Icons in the Toolbar taken from openclipart.org -->
-        <ToolBar x:Name="DrawingToolBar" Grid.Column="6" Grid.Row="0" Grid.ColumnSpan="2" Background="LightGray">
-            <Button x:Name="CanvasButton" ToolTip="Create a new Canvas" Click="CanvasButton_Click">
+        </StackPanel>
+        <StackPanel x:Name="ButtonToolbar" Orientation="Horizontal" Grid.Column="2" Grid.Row="0" Grid.ColumnSpan="3" Background="LightGray">
+            <Canvas Name="ToolbarSpacer" Width="5" Background="LightGray" />
+            <!-- All Icons in the StackPanel taken from openclipart.org -->
+            <Button x:Name="CanvasButton" ToolTip="Create a new Canvas" Click="CanvasButton_Click" BorderThickness="0">
                 <Rectangle Width="30" Height="30">
                     <Rectangle.Fill>
                         <DrawingBrush>
@@ -72,7 +67,7 @@
                     </Rectangle.Fill>
                 </Rectangle>
             </Button>
-            <ToggleButton x:Name="DrawButton" ToolTip="Enter Drawing Mode" Click="DrawButton_Click">
+            <ToggleButton x:Name="DrawButton" ToolTip="Enter Drawing Mode" Click="DrawButton_Click" BorderThickness="0">
                 <Rectangle Width="30" Height="30">
                     <Rectangle.Fill>
                         <DrawingBrush>
@@ -87,7 +82,7 @@
                     </Rectangle.Fill>
                 </Rectangle>
             </ToggleButton>
-            <ToggleButton x:Name="DeleteButton" ToolTip="Enter Deletion Mode" Click="DeleteButton_Click">
+            <ToggleButton x:Name="DeleteButton" ToolTip="Enter Deletion Mode" Click="DeleteButton_Click" BorderThickness="0">
                 <Rectangle Width="30" Height="30">
                     <Rectangle.Fill>
                         <DrawingBrush>
@@ -129,7 +124,7 @@
                     </Rectangle.Fill>
                 </Rectangle>
             </ToggleButton>
-            <Button x:Name="UndoButton" ToolTip="Undo the last action" Click="UndoButton_Click">
+            <Button x:Name="UndoButton" ToolTip="Undo the last action" Click="UndoButton_Click" BorderThickness="0">
                 <Rectangle Width="30" Height="30">
                     <Rectangle.Fill>
                         <DrawingBrush>
@@ -151,7 +146,7 @@
                     </Rectangle.Fill>
                 </Rectangle>
             </Button>
-            <Button x:Name="RedoButton" ToolTip="Redo the last undone action" Click="RedoButton_Click">
+            <Button x:Name="RedoButton" ToolTip="Redo the last undone action" Click="RedoButton_Click" BorderThickness="0">
                 <Rectangle Width="30" Height="30">
                     <Rectangle.Fill>
                         <DrawingBrush>
@@ -175,19 +170,66 @@
                     </Rectangle.Fill>
                 </Rectangle>
             </Button>
-        </ToolBar>
-        <local:CustomCanvas x:Name="LeftCanvas" Background="SlateGray" Grid.Column="2" Grid.Row="1" Height="auto" Grid.ColumnSpan="3"/>
-        <Canvas Name="CanvasSeperator" Grid.Column="5" Grid.Row="1" Background="LightGray"/>
-        <local:CustomCanvas x:Name="RightCanvas" Background="SlateGray" Grid.Column="6" Grid.Row="1" Height="auto"
-            MouseDown="RightCanvas_MouseDown" MouseUp="RightCanvas_MouseUp" MouseMove="RightCanvas_MouseMove" Grid.ColumnSpan="2" MouseLeave="RightCanvas_MouseLeave" MouseEnter="RightCanvas_MouseEnter" TouchEnter="RightCanvas_TouchEnter" TouchLeave="RightCanvas_TouchLeave"/>
-
+            <ToggleButton x:Name="DrawWithOptiButton" ToolTip="Enter Drawing Mode (OptiTrack)" Click="DrawWithOptiButton_Click" BorderThickness="0">
+                <Rectangle Width="30" Height="30">
+                    <Rectangle.Fill>
+                        <DrawingBrush>
+                            <DrawingBrush.Drawing>
+                                <DrawingGroup Transform="1,0,0,1,-30.972436,-202.26931">
+                                    <GeometryDrawing Brush="#FF000000">
+                                        <GeometryDrawing.Pen>
+                                            <Pen Brush="#FF000000" Thickness="1.01090431" StartLineCap="Flat" EndLineCap="Flat" LineJoin="Miter" />
+                                        </GeometryDrawing.Pen>
+                                        <GeometryDrawing.Geometry>
+                                            <RectangleGeometry RadiusX="11.1847" RadiusY="11.1847" Rect="92.1615,202.7748,95.2826,53.7929" />
+                                        </GeometryDrawing.Geometry>
+                                    </GeometryDrawing>
+                                    <GeometryDrawing Brush="#FF000000">
+                                        <GeometryDrawing.Pen>
+                                            <Pen Brush="#FF000000" Thickness="2.57952762" StartLineCap="Flat" EndLineCap="Flat" LineJoin="Miter" />
+                                        </GeometryDrawing.Pen>
+                                        <GeometryDrawing.Geometry>
+                                            <RectangleGeometry RadiusX="32.2622" RadiusY="32.2622" Rect="32.2622,219.6902,215.0813,155.1658" />
+                                        </GeometryDrawing.Geometry>
+                                    </GeometryDrawing>
+                                    <GeometryDrawing>
+                                        <GeometryDrawing.Pen>
+                                            <Pen Brush="#FFFFFFFF" Thickness="10.62992096" StartLineCap="Flat" EndLineCap="Flat" LineJoin="Miter" />
+                                        </GeometryDrawing.Pen>
+                                        <GeometryDrawing.Geometry>
+                                            <EllipseGeometry RadiusX="48.8035" RadiusY="48.8035" Center="139.8029,297.2731" />
+                                        </GeometryDrawing.Geometry>
+                                    </GeometryDrawing>
+                                    <GeometryDrawing Brush="#FFFFFFFF">
+                                        <GeometryDrawing.Geometry>
+                                            <EllipseGeometry RadiusX="11.2372" RadiusY="11.2372" Center="66.1719,256.4501" />
+                                        </GeometryDrawing.Geometry>
+                                    </GeometryDrawing>
+                                </DrawingGroup>
+                            </DrawingBrush.Drawing>
+                        </DrawingBrush>
+                    </Rectangle.Fill>
+                </Rectangle>
+            </ToggleButton>
+        </StackPanel>
+        <Canvas Name="CanvasLeftEdge" Grid.Column="0" Grid.Row="1" Background="LightGray" />
+        <Canvas x:Name="LeftCanvas" Background="SlateGray" Grid.Column="1" Grid.Row="1" Height="auto" Grid.ColumnSpan="1"/>
+        <Canvas Name="CanvasSeperator" Grid.Column="2" Grid.Row="1" Background="LightGray" />
+        <InkCanvas x:Name="RightCanvas" Background="SlateGray" Grid.Column="3" Grid.Row="1" Height="auto" PreviewMouseDown="RightCanvas_MouseDown" MouseUp="RightCanvas_MouseUp" MouseMove="RightCanvas_MouseMove" Grid.ColumnSpan="2" StrokeCollected="RightCanvas_StrokeCollection" EditingMode="None" IsStylusCapturedChanged="RightCanvas_IsStylusCapturedChanged"/>
+        <Canvas Name="CanvasRightEdge" Grid.Column="4" Grid.Row="1" Background="LightGray" />
 
         <DockPanel Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="8">
-            <StatusBar DockPanel.Dock="Bottom" Name="StatusBar"  Background="LightGray">
+            <StatusBar DockPanel.Dock="Bottom" Name="StatusBar" Background="LightGray">
                 <TextBox Name="LoadStatusBox" Text="nothing loaded" Background="LightGray"/>
                 <Separator/>
                 <TextBox Name="LastActionBox" Text="none" Background="LightGray"/>
+                <Separator/>
+                <TextBox Name="OptiTrackBox" Text="none" Background="LightGray"/>
+                <Separator/>
+                <TextBox Name="LineSimilarityBox" Text="-" Background="LightGray"/>
             </StatusBar>
         </DockPanel>
+        <Ellipse x:Name="optipoint" Opacity="0.00001" Height="5" Width="5" Fill="Black"/>
+        <Canvas x:Name="OverlayCanvas" Grid.Column="0" Grid.Row="0" Grid.ColumnSpan="5" Grid.RowSpan="3"/>
     </Grid>
 </Window>

SketchAssistant/SketchAssistantWPF/MainWindow.xaml.cs

@@ -1,4 +1,5 @@
 using Microsoft.Win32;
+using OptiTrack;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -18,6 +19,8 @@ using System.Windows.Media.Imaging;
 using System.Windows.Navigation;
 using System.Windows.Shapes;
 using System.Windows.Threading;
+using System.Windows.Ink;
+using System.Windows.Media.Effects;
 
 namespace SketchAssistantWPF
 {
@@ -38,7 +41,7 @@ namespace SketchAssistantWPF
                     InDebugMode = true;
                 }
             }
-            if(!InDebugMode)
+            if (!InDebugMode)
             {
                 DebugMode.Visibility = Visibility.Collapsed;
             }
@@ -46,9 +49,11 @@ namespace SketchAssistantWPF
             //  DispatcherTimer setup
             dispatcherTimer = new DispatcherTimer(DispatcherPriority.Render);
             dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
-            dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 0, 10);
+            dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 0, 5);
             ProgramPresenter.Resize(new Tuple<int, int>((int)LeftCanvas.Width, (int)LeftCanvas.Height),
                 new Tuple<int, int>((int)RightCanvas.Width, (int)RightCanvas.Height));
+            //Setup overlay items
+            SetupOverlay();
         }
 
         public enum ButtonState
@@ -87,6 +92,18 @@ namespace SketchAssistantWPF
         /// Point collections for debugging.
         /// </summary>
         DebugData debugDat = new DebugData();
+        /// <summary>
+        /// Stores Lines drawn on RightCanvas.
+        /// </summary>
+        public StrokeCollection strokeCollection = new StrokeCollection();
+        /// <summary>
+        /// Size of areas marking endpoints of lines in the redraw mode.
+        /// </summary>
+        public int markerRadius = 5;
+        /// <summary>
+        /// Dictionary containing the overlay elements
+        /// </summary>
+        public Dictionary<String, Shape> overlayDictionary = new Dictionary<string, Shape>();
 
         /********************************************/
         /*** WINDOW SPECIFIC FUNCTIONS START HERE ***/
@@ -101,12 +118,20 @@ namespace SketchAssistantWPF
                 new Tuple<int, int>((int)RightCanvas.ActualWidth, (int)RightCanvas.ActualHeight));
         }
 
+        /// <summary>
+        /// Collects all Strokes on RightCanvas
+        /// </summary>
+        public void RightCanvas_StrokeCollection(object sender, InkCanvasStrokeCollectedEventArgs e)
+        {
+            strokeCollection.Add(e.Stroke);
+        }
+
         /// <summary>
         /// Redo an Action.
         /// </summary>
         private void RedoButton_Click(object sender, RoutedEventArgs e)
         {
-            ProgramPresenter.Redo();
+            if (!IsMousePressed()) ProgramPresenter.Redo();
         }
 
         /// <summary>
@@ -114,7 +139,7 @@ namespace SketchAssistantWPF
         /// </summary>
         private void UndoButton_Click(object sender, RoutedEventArgs e)
         {
-            ProgramPresenter.Undo();
+            if (!IsMousePressed()) ProgramPresenter.Undo();
         }
 
         /// <summary>
@@ -123,6 +148,7 @@ namespace SketchAssistantWPF
         private void DeleteButton_Click(object sender, RoutedEventArgs e)
         {
             ProgramPresenter.ChangeState(false);
+            RightCanvas.EditingMode = InkCanvasEditingMode.EraseByStroke;
         }
 
         /// <summary>
@@ -131,73 +157,85 @@ namespace SketchAssistantWPF
         private void DrawButton_Click(object sender, RoutedEventArgs e)
         {
             ProgramPresenter.ChangeState(true);
+            RightCanvas.EditingMode = InkCanvasEditingMode.Ink;
         }
 
         /// <summary>
-        /// Hold left mouse button to start drawing.
-        /// </summary>
-        private void RightCanvas_MouseDown(object sender, MouseButtonEventArgs e)
-        {
-            ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Down);
-            //System.Diagnostics.Debug.WriteLine("ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Down);");
-        }
-
-        /// <summary>
-        /// Lift left mouse button to stop drawing and add a new Line.
+        /// Changes the state of the program to drawing with OptiTrack
         /// </summary>
-        private void RightCanvas_MouseUp(object sender, MouseButtonEventArgs e)
+        private void DrawWithOptiButton_Click(object sender, RoutedEventArgs e)
         {
-            ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Up);
-            //System.Diagnostics.Debug.WriteLine("ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Up);");
+            if (ProgramPresenter.GetOptitrackActive())
+            {
+                ProgramPresenter.ChangeOptiTrack(false);
+                if (ProgramPresenter.GetDrawingState())
+                    RightCanvas.EditingMode = InkCanvasEditingMode.Ink;
+                else
+                    RightCanvas.EditingMode = InkCanvasEditingMode.EraseByStroke;
+            }
+            else
+            {
+                ProgramPresenter.ChangeOptiTrack(true);
+                RightCanvas.EditingMode = InkCanvasEditingMode.None;
+            }
         }
 
         /// <summary>
-        /// If the mouse leaves the canvas, it is treated as if the mouse was released.
+        /// Hold left mouse button to start drawing.
         /// </summary>
-        private void RightCanvas_MouseLeave(object sender, MouseEventArgs e)
+        private void RightCanvas_MouseDown(object sender, MouseButtonEventArgs e)
         {
-            ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Up);
+            ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Down, strokeCollection);
         }
 
         /// <summary>
-        /// If the cursor enters the canvas, it is treated as if the cursor was just pressed if the cursor is pressed.
+        /// Lift left mouse button to stop drawing and add a new Line.
         /// </summary>
-        private void RightCanvas_MouseEnter(object sender, MouseEventArgs e)
+        private void RightCanvas_MouseUp(object sender, MouseButtonEventArgs e)
         {
-            if (IsMousePressed())
+            if (ProgramPresenter.GetDrawingState())
             {
-                ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Move, Mouse.GetPosition(RightCanvas));
-                ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Down);
+                if (strokeCollection.Count == 0)
+                {
+                    ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Up_Invalid, strokeCollection);
+                }
+                else
+                {
+                    ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Up, strokeCollection);
+                    RightCanvas.Strokes.RemoveAt(0);
+                    strokeCollection.RemoveAt(0);
+                }
             }
         }
 
         /// <summary>
-        /// If the finger enters the canvas, it is treated as if the finger was just pressed if the finger is pressed.
+        /// Is called when a stylus is lifted, which has the same effect as releasing the mouse.
+        /// Lifting the finger when using touch also toggles this, therfore this function is sufficient.
         /// </summary>
-        private void RightCanvas_TouchEnter(object sender, TouchEventArgs e)
+        private void RightCanvas_IsStylusCapturedChanged(object sender, DependencyPropertyChangedEventArgs e)
         {
-            if (IsMousePressed())
+            System.Diagnostics.Debug.WriteLine("Stylus Capture is now: {0}", RightCanvas.IsStylusCaptured);
+            if (!RightCanvas.IsStylusCaptured)
             {
-                ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Move, Mouse.GetPosition(RightCanvas));
-                ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Down);
+                if (strokeCollection.Count == 0)
+                {
+                    ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Up_Invalid, strokeCollection);
+                }
+                else
+                {
+                    ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Up, strokeCollection);
+                    RightCanvas.Strokes.RemoveAt(0);
+                    strokeCollection.RemoveAt(0);
+                }
             }
         }
 
-        /// <summary>
-        /// If the finger leaves the canvas, it is treated as if the finger was released.
-        /// </summary>
-        private void RightCanvas_TouchLeave(object sender, TouchEventArgs e)
-        {
-            ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Up);
-        }
-
         /// <summary>
         /// Get current Mouse positon within the right picture box.
         /// </summary>
         private void RightCanvas_MouseMove(object sender, MouseEventArgs e)
         {
             ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Move, e.GetPosition(RightCanvas));
-            //System.Diagnostics.Debug.WriteLine("new Point(" + ((int)e.GetPosition(RightCanvas).X).ToString() + "," + ((int)e.GetPosition(RightCanvas).Y).ToString() + "), ");
         }
 
         /// <summary>
@@ -208,33 +246,8 @@ namespace SketchAssistantWPF
         private void CanvasButton_Click(object sender, RoutedEventArgs e)
         {
             ProgramPresenter.NewCanvas();
-        }
-
-        /// <summary>
-        /// Sends inputs to the presenter simulating drawing, used for testing and debugging.
-        /// Takes 7000ms
-        /// </summary>
-        private void DebugOne_Click(object sender, RoutedEventArgs e)
-        {
-            Debug(1);
-        }
-
-        /// <summary>
-        /// Sends inputs to the presenter simulating drawing, used for testing and debugging.
-        /// Takes 24000ms
-        /// </summary>
-        private void DebugTwo_Click(object sender, RoutedEventArgs e)
-        {
-            Debug(2);
-        }
-
-        /// <summary>
-        /// Sends inputs to the presenter simulating drawing, used for testing and debugging.
-        /// Takes 7000ms
-        /// </summary>
-        private void DebugThree_Click(object sender, RoutedEventArgs e)
-        {
-            Debug(3);
+            RightCanvas.EditingMode = InkCanvasEditingMode.Ink;
+            RightCanvas.Strokes.Clear();
         }
 
         /// <summary>
@@ -243,15 +256,19 @@ namespace SketchAssistantWPF
         private void dispatcherTimer_Tick(object sender, EventArgs e)
         {
             ProgramPresenter.Tick();
-            //System.Diagnostics.Debug.WriteLine("ProgramPresenter.Tick();");
         }
 
         /// <summary>
-        /// Import button, will open an OpenFileDialog
+        /// Import button for .svg file, will open an OpenFileDialog
         /// </summary>
-        private void MenuItem_Click(object sender, RoutedEventArgs e)
+        private void SVGMenuItem_Click(object sender, RoutedEventArgs e)
         {
-            ProgramPresenter.ExamplePictureToolStripMenuItemClick();
+            if (ProgramPresenter.SVGToolStripMenuItemClick())
+            {
+                ProgramPresenter.NewCanvas();
+                RightCanvas.EditingMode = InkCanvasEditingMode.Ink;
+                RightCanvas.Strokes.Clear();
+            }
         }
 
         /*************************/
@@ -273,8 +290,10 @@ namespace SketchAssistantWPF
         /// <returns>Whether or not the mouse is pressed.</returns>
         public bool IsMousePressed()
         {
-            if (!debugRunning) {
-                return (Mouse.LeftButton.Equals(MouseButtonState.Pressed) || Mouse.RightButton.Equals(MouseButtonState.Pressed)); }
+            if (!debugRunning)
+            {
+                return (Mouse.LeftButton.Equals(MouseButtonState.Pressed) || Mouse.RightButton.Equals(MouseButtonState.Pressed));
+            }
             else return true;
         }
 
@@ -342,11 +361,12 @@ namespace SketchAssistantWPF
         /// Adds a point to the right canvas
         /// </summary>
         /// <param name="newPoint">The point</param>
-        public void AddNewPointRight(Ellipse newPoint)
+        public void AddNewPointRight(Ellipse newPoint, InternalLine line)
         {
             newPoint.Height = 3; newPoint.Width = 3;
             newPoint.Fill = Brushes.Black;
             RightCanvas.Children.Add(newPoint);
+            newPoint.Margin = new Thickness(line.point.X - 1.5, line.point.Y - 1.5, 0, 0);
         }
 
         /// <summary>
@@ -396,6 +416,26 @@ namespace SketchAssistantWPF
             LastActionBox.Text = message;
         }
 
+        /// <summary>
+        /// Sets the contents of the last action taken indicator label.
+        /// </summary>
+        /// <param name="message">The new contents</param>
+        public void SetOptiTrackText(string message)
+        {
+            OptiTrackBox.Text = message;
+        }
+
+        /// Sets the contents of the status bar label containing
+        /// the similarity score of the left and right image.
+        /// </summary>
+        /// <param name="message">The message to be set, 
+        /// will be set to the default value if left empty.</param>
+        public void SetImageSimilarityText(string message)
+        {
+            if (message.Count() > 0) LineSimilarityBox.Text = message;
+            else LineSimilarityBox.Text = "-";
+        }
+
         /// <summary>
         /// Changes the states of a tool strip button.
         /// </summary>
@@ -424,6 +464,10 @@ namespace SketchAssistantWPF
                 case "redoButton":
                     buttonToChange = RedoButton;
                     break;
+                case "drawWithOptiButton":
+                    buttonToChange = DrawWithOptiButton;
+                    isToggleable = true;
+                    break;
                 default:
                     Console.WriteLine("Invalid Button was given to SetToolStripButton. \nMaybe you forgot to add a case?");
                     return;
@@ -504,30 +548,105 @@ namespace SketchAssistantWPF
         /// <param name="active">Whether or not the canvas is active.</param>
         public void SetCanvasState(string canvasName, bool active)
         {
-            Canvas canvas;
-            switch (canvasName){
+            switch (canvasName)
+            {
                 case ("LeftCanvas"):
-                    canvas = LeftCanvas;
+                    if (active) LeftCanvas.Background = Brushes.White;
+                    else LeftCanvas.Background = Brushes.SlateGray;
                     break;
                 case ("RightCanvas"):
-                    canvas = RightCanvas;
+                    if (active) RightCanvas.Background = Brushes.White;
+                    else RightCanvas.Background = Brushes.SlateGray;
                     break;
                 default:
                     throw new InvalidOperationException("Unknown canvas name, Check that the canvas passed is either LeftCanvas or RightCanvas");
             }
-            if (active)
+        }
+
+        /************************/
+        /*** HELPING FUNCTION ***/
+        /************************/
+
+        /// <summary>
+        /// A function that generates the overlay elements and sets all their values.
+        /// </summary>
+        private void SetupOverlay()
+        {
+            DropShadowEffect effect = new DropShadowEffect(); effect.ShadowDepth = 0;
+            OverlayCanvas.Background = null;
+            //Startpoint of a line to be redrawn
+            Ellipse StartPointOverlay = new Ellipse();
+            StartPointOverlay.Height = markerRadius * 2; StartPointOverlay.Width = markerRadius * 2;
+            StartPointOverlay.Fill = Brushes.Green;
+            StartPointOverlay.Effect = effect;
+            overlayDictionary.Add("startpoint", StartPointOverlay);
+            //Endpoint of a line to be redrawn
+            Ellipse EndPointOverlay = new Ellipse();
+            EndPointOverlay.Height = markerRadius * 2; EndPointOverlay.Width = markerRadius * 2;
+            EndPointOverlay.Fill = Brushes.Green;
+            EndPointOverlay.Effect = effect;
+            overlayDictionary.Add("endpoint", EndPointOverlay);
+            //Pointer of the optitrack system
+            Ellipse OptitrackMarker = new Ellipse(); OptitrackMarker.Height = 5; OptitrackMarker.Width = 5;
+            OptitrackMarker.Fill = Brushes.LightGray;
+            OptitrackMarker.Effect = effect;
+            overlayDictionary.Add("optipoint", OptitrackMarker);
+            //10 Dotted Lines for debugging (if more are needed simply extend the for-loop
+            for (int x = 0; x < 10; x++)
             {
-                canvas.Background = Brushes.White;
+                Line dotLine = new Line();
+                dotLine.Stroke = Brushes.Red;
+                dotLine.StrokeDashArray = new DoubleCollection { 2 + x, 2 + x };
+                dotLine.StrokeThickness = 1;
+                overlayDictionary.Add("dotLine" + x.ToString(), dotLine);
             }
-            else
+
+            //Common features of all overlay items
+            foreach (KeyValuePair<String, Shape> s in overlayDictionary)
             {
-                canvas.Background = Brushes.SlateGray;
+                OverlayCanvas.Children.Add(s.Value);
+                s.Value.Opacity = 0.00001;
+                s.Value.IsHitTestVisible = false;
             }
         }
 
-        /************************/
-        /*** HELPING FUNCTION ***/
-        /************************/
+        /// <summary>
+        /// Sends inputs to the presenter simulating drawing, used for testing and debugging.
+        /// Takes 7000ms
+        /// </summary>
+        private void DebugOne_Click(object sender, RoutedEventArgs e)
+        {
+            Debug(1);
+        }
+
+        /// <summary>
+        /// Sends inputs to the presenter simulating drawing, used for testing and debugging.
+        /// Takes 24000ms
+        /// </summary>
+        private void DebugTwo_Click(object sender, RoutedEventArgs e)
+        {
+            Debug(2);
+        }
+
+        /// <summary>
+        /// Sends inputs to the presenter simulating drawing, used for testing and debugging.
+        /// Takes 4000ms
+        /// </summary>
+        private void DebugThree_Click(object sender, RoutedEventArgs e)
+        {
+            Debug(3);
+        }
+
+        /// <summary>
+        /// Sends inputs to the presenter simulating drawing, used for testing and debugging.
+        /// Takes 
+        /// </summary>
+        private void DebugFour_Click(object sender, RoutedEventArgs e)
+        {
+            Debug(4);
+        }
+
+
 
         /// <summary>
         /// A function which simulates canvas input for debugging.
@@ -536,6 +655,7 @@ namespace SketchAssistantWPF
         private async void Debug(int option)
         {
             Point[] points;
+            Point start = new Point(50, 50);
             switch (option)
             {
                 case 1:
@@ -544,14 +664,21 @@ namespace SketchAssistantWPF
                 case 2:
                     points = debugDat.debugPoints2;
                     break;
+                case 3:
+                    points = debugDat.debugPoints3;
+                    break;
+                case 4:
+                    points = debugDat.debugPoints4;
+                    start = new Point(284, 148);
+                    break;
                 default:
                     return;
             }
             dispatcherTimer.Stop();
             debugRunning = true;
             ProgramPresenter.Tick(); await Task.Delay(10);
-            ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Move, new Point(50, 50));
-            ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Down); await Task.Delay(10);
+            ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Move, start);
+            ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Down, strokeCollection); await Task.Delay(10);
             for (int x = 0; x < points.Length; x++)
             {
                 ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Move, points[x]);
@@ -562,7 +689,7 @@ namespace SketchAssistantWPF
                     await Task.Delay(1);
                 }
             }
-            ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Up); await Task.Delay(1);
+            ProgramPresenter.MouseEvent(MVP_Presenter.MouseAction.Up, strokeCollection); await Task.Delay(1);
             debugRunning = false;
             dispatcherTimer.Start();
         }

SketchAssistant/SketchAssistantWPF/OptiTrackConnector.cs

@@ -0,0 +1,195 @@
+using System;
+using System.Runtime.InteropServices;
+using System.Threading;
+
+namespace OptiTrack
+{
+
+    public class OptiTrackConnector
+    {
+        private bool _stop = true;
+        private Thread _tracker;
+
+        public delegate void OnFrameReady(Frame frame);
+
+        public bool Init(String path)
+        {
+            int a = OptiTrackNativeWrapper.TT_Initialize();
+            int b = OptiTrackNativeWrapper.TT_LoadProject(path);
+            Console.WriteLine("a:" + a + ", b:" + b);
+            if (a + b != 0)
+            {
+                // breakpoint
+            }
+            return a + b == 0;
+        }
+
+        public void StartTracking(OnFrameReady frameReadyDelegate)
+        {
+            _stop = false;
+            _tracker = new Thread(delegate ()
+            {
+                HighPerformanceTimer hpt = new HighPerformanceTimer();
+                int i = 0;
+
+                hpt.Start();
+                while (!_stop)
+                {
+                    if (i++ == 200)
+                    {
+                        //Console.WriteLine("Tracker FPS: " + 200.0 / HPT.Stop());
+                        i = 0;
+                        hpt.Start();
+                    }
+                    OptiTrackNativeWrapper.TT_Update();
+
+                    frameReadyDelegate(BuildFrame());
+
+                    Thread.Sleep(15);
+                }
+            });
+            _tracker.Start();
+        }
+
+        Frame _lastFrame;
+
+        private Frame BuildFrame()
+        {
+            Frame frame = new Frame(OptiTrackNativeWrapper.TT_FrameMarkerCount(), OptiTrackNativeWrapper.TT_TrackableCount());
+
+            for (int i = 0; i < OptiTrackNativeWrapper.TT_FrameMarkerCount(); i++)
+            {
+                frame.Markers[i] = new Marker(
+                    OptiTrackNativeWrapper.TT_FrameMarkerX(i),
+                    OptiTrackNativeWrapper.TT_FrameMarkerY(i), 
+                    OptiTrackNativeWrapper.TT_FrameMarkerZ(i))
+                {
+                    BoundToTrackable = null
+                };
+            }
+
+            for (int i = 0; i < OptiTrackNativeWrapper.TT_TrackableCount(); i++)
+            {
+                Trackable t = new Trackable
+                {
+                    IsTracked = OptiTrackNativeWrapper.TT_IsTrackableTracked(i),
+                    Id = OptiTrackNativeWrapper.TT_TrackableID(i)
+                };
+
+                if (t.IsTracked)
+                {
+                    OptiTrackNativeWrapper.TT_TrackableLocation(i, out t.X, out t.Y, out t.Z, out t.Qx, out t.Qy, out t.Qz, out t.Qw,
+                                                             out t.Pitch, out t.Yaw, out t.Roll);
+
+                    if(_lastFrame != null)
+                    {
+                        if (_lastFrame.Trackables[i].IsAlmostSameCoordinates(t))
+                            t.IsTracked = false;
+                    }
+
+                    /*for (int j = 0; j < OptiTrackNativeWrapper.TT_TrackableMarkerCount(i); j++)
+                    {
+                        float markerRadius = trackableMarker(i, j);
+
+                        frame.markers[boundTrackable(frame, markerRadius,t)].boundToTrackable = t;
+                    }*/
+
+                }
+
+                frame.Trackables[i] = t;
+            }
+            _lastFrame = frame;
+
+            return frame;
+        }
+
+        /*private float trackableMarker(int trackableId, int markerId)
+        {
+            Marker tempMarker = new Marker(0, 0, 0);
+
+            OptiTrackNativeWrapper.TT_TrackableMarker(trackableId, markerId, out tempMarker.x, out tempMarker.y, out tempMarker.z);
+
+            float markerRadius = (float)Math.Pow(((float)Math.Pow(tempMarker.x, 2.00) + (float)Math.Pow(tempMarker.y, 2.00) + (float)Math.Pow(tempMarker.z, 2.00)),0.50);
+            markerRadius += (float)0.01;
+
+            return markerRadius;
+        }
+
+        private int boundTrackable(Frame frame, float markerRadius, Trackable trackable)
+        {
+            List<float> distanceValues = new List<float>();
+
+            for (int k = 0; k < frame.markers.Count(); k++)
+                distanceValues.Add((float)Math.Pow(((float)Math.Pow(trackable.x - frame.markers[k].x, 2.00) + (float)Math.Pow(trackable.y - frame.markers[k].y, 2.00) + (float)Math.Pow(trackable.z - frame.markers[k].z, 2.00)),0.50));
+
+            float minimumDistance = markerRadius;
+            
+            int boundMarkerId = 0;
+
+            for (int i = 0; i < distanceValues.Count; ++i)
+            {
+               
+                if (distanceValues[i] <= minimumDistance)
+                {
+                    minimumDistance = distanceValues[i];
+                    boundMarkerId = i;
+                }                           
+            }
+
+            return boundMarkerId;
+        }*/
+
+        public void StopTracking()
+        {
+            _stop = true;
+            OptiTrackNativeWrapper.TT_Shutdown();
+        }
+    }
+
+    
+    class OptiTrackNativeWrapper
+    {
+        [DllImport("NPTrackingTools.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int TT_Initialize();
+
+        [DllImport("NPTrackingTools.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int TT_Shutdown();
+
+        [DllImport("NPTrackingTools.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.Cdecl)]
+        public static extern int TT_LoadProject([MarshalAs(UnmanagedType.LPStr)]string file);
+
+        [DllImport("NPTrackingTools.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int TT_Update();
+
+        [DllImport("NPTrackingTools.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int TT_FrameMarkerCount();
+
+        [DllImport("NPTrackingTools.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int TT_TrackableCount();
+
+        [DllImport("NPTrackingTools.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int TT_TrackableLocation([In]int index, [Out]out float x, [Out]out float y, [Out]out float z, [Out]out float qx, [Out]out float qy, [Out]out float qz, [Out]out float qw, [Out]out float yaw, [Out]out float pitch, [Out]out float roll);
+
+        [DllImport("NPTrackingTools.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void TT_TrackableMarker([In]int rigidIndex, [In]int markerIndex, [Out]out float x, [Out]out float y, [Out]out float z);
+
+        [DllImport("NPTrackingTools.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern float TT_FrameMarkerX([In]int index);
+
+        [DllImport("NPTrackingTools.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern float TT_FrameMarkerY([In]int index);
+
+        [DllImport("NPTrackingTools.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern float TT_FrameMarkerZ([In]int index);
+
+        [DllImport("NPTrackingTools.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern bool TT_IsTrackableTracked([In]int index);
+
+        [DllImport("NPTrackingTools.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int TT_TrackableID(int index);
+
+        [DllImport("NPTrackingTools.dll", CallingConvention = CallingConvention.Cdecl)]
+        public static extern int TT_TrackableMarkerCount(int index);
+
+    }
+}

SketchAssistant/SketchAssistantWPF/SketchAction.cs

@@ -72,7 +72,7 @@ namespace SketchAssistantWPF
         /// <returns>A String describing what happend at this action.</returns>
         public String GetActionInformation()
         {
-            String returnString;
+            String returnString = "";
             switch (thisAction)
             {
                 case ActionType.Start:
@@ -88,9 +88,6 @@ namespace SketchAssistantWPF
                         returnString = "Several Lines were deleted.";
                     }
                     break;
-                default:
-                    returnString = "There is no information available for this action.";
-                    break;
             }
             return returnString;
         }

SketchAssistant/SketchAssistantWPF/SketchAssistantWPF.csproj

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\packages\ReportGenerator.4.0.15\build\netstandard2.0\ReportGenerator.props" Condition="Exists('..\packages\ReportGenerator.4.0.15\build\netstandard2.0\ReportGenerator.props')" />
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -16,6 +17,7 @@
     <Deterministic>true</Deterministic>
     <NuGetPackageImportStamp>
     </NuGetPackageImportStamp>
+    <IsWebBootstrapper>false</IsWebBootstrapper>
     <PublishUrl>publish\</PublishUrl>
     <Install>true</Install>
     <InstallFrom>Disk</InstallFrom>
@@ -28,7 +30,6 @@
     <MapFileExtensions>true</MapFileExtensions>
     <ApplicationRevision>0</ApplicationRevision>
     <ApplicationVersion>1.0.0.%2a</ApplicationVersion>
-    <IsWebBootstrapper>false</IsWebBootstrapper>
     <UseApplicationTrust>false</UseApplicationTrust>
     <BootstrapperEnabled>true</BootstrapperEnabled>
   </PropertyGroup>
@@ -51,6 +52,29 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\x86\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DebugType>full</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
+    <OutputPath>bin\x86\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup>
+    <ApplicationIcon>nicubunu-Quill.ico</ApplicationIcon>
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Data" />
@@ -67,6 +91,9 @@
     <Reference Include="WindowsBase" />
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
+    <Reference Include="WindowsInput, Version=1.0.4.0, Culture=neutral, PublicKeyToken=9b287f7dc5073cad, processorArchitecture=MSIL">
+      <HintPath>..\packages\InputSimulator.1.0.4.0\lib\net20\WindowsInput.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <ApplicationDefinition Include="App.xaml">
@@ -74,12 +101,16 @@
       <SubType>Designer</SubType>
     </ApplicationDefinition>
     <Compile Include="ActionHistory.cs" />
+    <Compile Include="Wristband.cs" />
     <Compile Include="CustomCanvas.cs" />
     <Compile Include="DebugData.cs" />
     <Compile Include="FileImporter.cs" />
     <Compile Include="FileImporterException.cs" />
+    <Compile Include="Frame.cs" />
     <Compile Include="GeometryCalculator.cs" />
+    <Compile Include="HighPerformanceTimer.cs" />
     <Compile Include="ImageDimension.cs" />
+    <Compile Include="OptiTrackConnector.cs" />
     <Compile Include="SketchAction.cs" />
     <Page Include="MainWindow.xaml">
       <Generator>MSBuild:Compile</Generator>
@@ -116,6 +147,10 @@
       <Generator>ResXFileCodeGenerator</Generator>
       <LastGenOutput>Resources.Designer.cs</LastGenOutput>
     </EmbeddedResource>
+    <None Include="optitrack_setup.ttp">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Include="packages.config" />
     <None Include="Properties\Settings.settings">
       <Generator>SettingsSingleFileGenerator</Generator>
       <LastGenOutput>Settings.Designer.cs</LastGenOutput>
@@ -136,5 +171,22 @@
       <Install>false</Install>
     </BootstrapperPackage>
   </ItemGroup>
+  <ItemGroup>
+    <Content Include="NPTrackingTools.dll">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+  <ItemGroup>
+    <WCFMetadata Include="Connected Services\" />
+  </ItemGroup>
+  <ItemGroup>
+    <Resource Include="nicubunu-Quill.ico" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('..\packages\ReportGenerator.4.0.15\build\netstandard2.0\ReportGenerator.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\ReportGenerator.4.0.15\build\netstandard2.0\ReportGenerator.props'))" />
+  </Target>
 </Project>

SketchAssistant/SketchAssistantWPF/Wristband.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace SketchAssistantWPF
+{
+    public class Wristband
+    {
+        
+        /// <summary>
+        /// Function to call when the wristband should push forwards.
+        /// </summary>
+        public void PushForward()
+        {
+            Console.WriteLine("FORWARD_PUSH");
+        }
+
+        /// <summary>
+        /// Function to call when the wristband should push backwards.
+        /// </summary>
+        public void PushBackward()
+        {
+            Console.WriteLine("BACKWARD_PUSH");
+        }
+    }
+}

SketchAssistant/SketchAssistantWPF/packages.config

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="InputSimulator" version="1.0.4.0" targetFramework="net461" />
+  <package id="Microsoft.TestPlatform" version="16.0.1" targetFramework="net461" />
+  <package id="OpenCover" version="4.7.922" targetFramework="net461" />
+  <package id="ReportGenerator" version="4.0.15" targetFramework="net461" />
+</packages>

SketchAssistant/WhiteTests/UITest.cs

@@ -12,132 +12,1019 @@ using System.Windows;
 using System.Diagnostics;
 using TestStack.White.UIItems.WindowStripControls;
 using TestStack.White.UIItems.MenuItems;
+using System.Collections.Generic;
+using System.Text.RegularExpressions;
+using WindowsInput;
+using WindowsInput.Native;
+using System.Threading.Tasks;
+using System.Linq;
+using Application = TestStack.White.Application;
+using Window = TestStack.White.UIItems.WindowItems.Window;
 
 namespace WhiteTests
 {
+
     [TestClass]
     public class UITest
     {
         private TestStack.White.Application application;
 
+        /// <summary>
+        /// The directory of the input files, saved for repeated use
+        /// </summary>
+        private String input_file_dir = null;
+        /// <summary>
+        /// instance of TestContext to be able to access deployed files
+        /// </summary>
+        private TestContext testContextInstance;
+        /// <summary>
+        ///Gets or sets the test context which provides
+        ///information about and functionality for the current test run.
+        ///</summary>
+        public TestContext TestContext
+        {
+            get
+            {
+                return testContextInstance;
+            }
+            set
+            {
+                testContextInstance = value;
+            }
+        }
+
+        /// <summary>
+        /// A function that returns the path to the test_input_files folder. 
+        /// Do with it what you want.
+        /// </summary>
+        /// <returns>the path to the test_input_files folder</returns>
+        public String getSketchAssistantDirectory()
+        {
+            Regex rx = new Regex(@"^(.*\\SketchAssistant\\)");
+            Match match = rx.Match(TestContext.DeploymentDirectory);
+            String SketchAssistDir = match.Groups[1].Value;
+            if (input_file_dir == null)
+            {
+                if (Directory.Exists(SketchAssistDir + @"WhiteTests\test_input_files\"))
+                {
+                    input_file_dir = SketchAssistDir + @"WhiteTests\test_input_files\";
+                }
+                else if (Directory.Exists(SketchAssistDir + @"WhiteTests\bin\Debug\test_input_files\"))
+                {
+                    input_file_dir = SketchAssistDir + @"WhiteTests\bin\Debug\test_input_files\";
+                }
+                else
+                {
+                    Regex rx_0 = new Regex(@"^(.*\\projects\\)");
+                    Match match_0 = rx_0.Match(TestContext.DeploymentDirectory);
+                    String ProjectsDir = match_0.Groups[1].Value;
+                    var dirs = Directory.GetDirectories(ProjectsDir, "test_input_files", SearchOption.AllDirectories);
+                    input_file_dir = dirs[0];
+                }
+            }
+            return input_file_dir;
+        }
+
         public Window setupapp()
         {
+            string[] files;
+            Regex rx = new Regex(@"^(.*\\SketchAssistant\\)");
+            Match match = rx.Match(TestContext.DeploymentDirectory);
+            String SketchAssistDir = match.Groups[1].Value;
+            try
+            {
+                files = Directory.GetFiles(SketchAssistDir + @"SketchAssistantWPF\bin\", "SketchAssistantWPF.exe", SearchOption.AllDirectories);
+            }
+            catch
+            {
+                Regex rx_0 = new Regex(@"^(.*\\projects\\)");
+                Match match_0 = rx_0.Match(TestContext.DeploymentDirectory);
+                String ProjectsDir = match_0.Groups[1].Value;
+                files = Directory.GetFiles(ProjectsDir, "SketchAssistantWPF.exe", SearchOption.AllDirectories);
+            }
+
+            ProcessStartInfo processStart = new ProcessStartInfo(files[0], "-debug");
+            /*
             string outputDir = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
             string editedDir = outputDir.Replace("WhiteTests", "SketchAssistantWPF");
             string app_path = editedDir + @"\SketchAssistantWPF.exe";
-            ProcessStartInfo processStart = new ProcessStartInfo(app_path, "-debug");
+            ProcessStartInfo processStart = new ProcessStartInfo(app_path, "-debug");*/
             application = Application.Launch(processStart);
             return application.GetWindow("Sketch Assistant");
         }
 
+        [DataTestMethod]
+        [TestCategory("FileIO")]
+        [DataRow("line")]
+        public void LoadSVGFileTest(String filename)
+        {
+            Window mainWindow = setupapp();
+            InputSimulator inputSimulator = new InputSimulator();
+            Thread.Sleep(30);
+            string[] files = Directory.GetFiles(getSketchAssistantDirectory() + @"\whitelisted", "*.svg", SearchOption.AllDirectories);
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("LoadMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("SVGMenuButton")).Click();
+            Thread.Sleep(1000);
+            inputSimulator.Keyboard.TextEntry(getSketchAssistantDirectory() + @"whitelisted\" + filename + ".svg");
+            Thread.Sleep(1000);
+            inputSimulator.Keyboard.KeyPress(VirtualKeyCode.RETURN);
+            Thread.Sleep(1000);
+            //Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Close();
+        }
+
+        [TestMethod]
+        [TestCategory("DirectInput")]
+        public void DrawLineOnCanvasTest()
+        {
+            Window mainWindow = setupapp();
+            Thread.Sleep(30);
+            InputSimulator inputSimulator = new InputSimulator();
+            MouseSimulator mouseSimulator = new MouseSimulator(inputSimulator);
+            Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            inputSimulator.Mouse.MoveMouseBy(100, 100);
+            inputSimulator.Mouse.LeftButtonDown();
+            Thread.Sleep(30);
+            inputSimulator.Mouse.MoveMouseBy(100, 100);
+            Thread.Sleep(30);
+            inputSimulator.Mouse.LeftButtonUp();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Close();
+        }
+
         [TestMethod]
+        [TestCategory("DirectInput")]
+        public void UndoLineOnCanvasTest()
+        {
+            Window mainWindow = setupapp();
+            Thread.Sleep(30);
+            InputSimulator inputSimulator = new InputSimulator();
+            MouseSimulator mouseSimulator = new MouseSimulator(inputSimulator);
+            Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            inputSimulator.Mouse.MoveMouseBy(0, 200);
+            inputSimulator.Mouse.LeftButtonDown();
+            Thread.Sleep(30);
+            inputSimulator.Mouse.MoveMouseBy(500, 300);
+            Thread.Sleep(30);
+            inputSimulator.Mouse.LeftButtonUp();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("UndoButton")).Click();
+            Thread.Sleep(100);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Close();
+        }
+
+        [TestMethod]
+        [TestCategory("DirectInput")]
+        public void InvalidLineTest()
+        {
+            Window mainWindow = setupapp();
+            Thread.Sleep(30);
+            InputSimulator inputSimulator = new InputSimulator();
+            MouseSimulator mouseSimulator = new MouseSimulator(inputSimulator);
+            Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("DrawButton")).Click();
+            Thread.Sleep(30);
+            inputSimulator.Mouse.LeftButtonDown();
+            inputSimulator.Mouse.MoveMouseBy(0, 200);
+            Thread.Sleep(30);
+            inputSimulator.Mouse.MoveMouseBy(500, 300);
+            Thread.Sleep(30);
+            inputSimulator.Mouse.LeftButtonUp();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            inputSimulator.Mouse.MoveMouseBy(-1000, 0);
+            Thread.Sleep(30);
+            inputSimulator.Mouse.LeftButtonDown();
+            inputSimulator.Mouse.MoveMouseBy(1000, 0);
+            inputSimulator.Mouse.LeftButtonUp();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Close();
+        }
+
+        [TestMethod]
+        [TestCategory("DirectInput")]
+        public void PointsOnCanvasSimilarityTest()
+        {
+            Window mainWindow = setupapp();
+            Thread.Sleep(30);
+            InputSimulator inputSimulator = new InputSimulator();
+            MouseSimulator mouseSimulator = new MouseSimulator(inputSimulator);
+            Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Assert.AreEqual("-", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LineSimilarityBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            inputSimulator.Mouse.MoveMouseBy(0, 200);
+            inputSimulator.Mouse.LeftButtonDown();
+            Thread.Sleep(30);
+            inputSimulator.Mouse.LeftButtonUp();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Assert.AreEqual("-", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LineSimilarityBox")).Text.ToString());
+            Thread.Sleep(30);
+            inputSimulator.Mouse.LeftButtonDown();
+            Thread.Sleep(30);
+            inputSimulator.Mouse.LeftButtonUp();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 1 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Assert.AreEqual("1", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LineSimilarityBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("UndoButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Assert.AreEqual("-", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LineSimilarityBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("RedoButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 1 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Assert.AreEqual("1", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LineSimilarityBox")).Text.ToString());
+            mainWindow.Close();
+        }
+
+        [TestMethod]
+        [TestCategory("DebugInput")]
         public void CreateCanvasTest()
         {
             Window mainWindow = setupapp();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
             mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
             mainWindow.Close();
         }
 
         [TestMethod]
+        [TestCategory("DebugInput")]
         public void DrawLineTest()
         {
             Window mainWindow = setupapp();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
             mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugOne")).Click();
             Thread.Sleep(7000);
             Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
             mainWindow.Close();
         }
 
-        /*[TestMethod]
-         public void DeleteLineTest()
-         {
-             Window mainWindow = setupapp();
-             Thread.Sleep(20);
-             Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
-             mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
-             Thread.Sleep(20);
-             Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
-             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
-             Thread.Sleep(20);
-             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
-             Thread.Sleep(20);
-             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugOne")).Click();
-             Thread.Sleep(7000);
-             Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
-             Thread.Sleep(20);
-             mainWindow.Get<Button>(SearchCriteria.ByAutomationId("DeleteButton")).Click();
-             Thread.Sleep(20);
-             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
-             Thread.Sleep(20);
-             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
-             Thread.Sleep(20);
-             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugThree")).Click();
-             Thread.Sleep(24000);
-             Assert.AreEqual("Last Action: Line number 0 was deleted", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
-             mainWindow.Close();
-         }*/
+        [TestMethod]
+        [TestCategory("DebugInput")]
+        public void DeleteLineTest()
+        {
+            Window mainWindow = setupapp();
+            Thread.Sleep(30);
+            Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("DrawButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugOne")).Click();
+            Thread.Sleep(7000);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("DeleteButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugOne")).Click();
+            Thread.Sleep(7000);
+            Assert.AreEqual("Last Action: Line number 0 was deleted.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Close();
+        }
 
         [TestMethod]
+        [TestCategory("DebugInput")]
         public void UndoTest()
         {
             Window mainWindow = setupapp();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
             mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugOne")).Click();
             Thread.Sleep(7000);
             Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             mainWindow.Get<Button>(SearchCriteria.ByAutomationId("UndoButton")).Click();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
             mainWindow.Close();
         }
 
         [TestMethod]
+        [TestCategory("DebugInput")]
         public void RedoTest()
         {
             Window mainWindow = setupapp();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
             mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugOne")).Click();
             Thread.Sleep(7000);
             Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             mainWindow.Get<Button>(SearchCriteria.ByAutomationId("UndoButton")).Click();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             mainWindow.Get<Button>(SearchCriteria.ByAutomationId("RedoButton")).Click();
-            Thread.Sleep(20);
+            Thread.Sleep(30);
             Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
             mainWindow.Close();
         }
+
+        [TestMethod]
+        [TestCategory("DebugInput")]
+        public void DrawSeveralLinesTest()
+        {
+            Window mainWindow = setupapp();
+            Thread.Sleep(30);
+            Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugOne")).Click();
+            Thread.Sleep(7000);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugTwo")).Click();
+            Thread.Sleep(30000);
+            Assert.AreEqual("Last Action: Line number 1 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Close();
+        }
+
+        [TestMethod]
+        [TestCategory("DebugInput")]
+        public void DeleteSeveralLinesTest()
+        {
+            Window mainWindow = setupapp();
+            Thread.Sleep(30);
+            Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugOne")).Click();
+            Thread.Sleep(7000);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugTwo")).Click();
+            Thread.Sleep(24000);
+            Assert.AreEqual("Last Action: Line number 1 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("DeleteButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugThree")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 1 was deleted.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(10000);
+            Assert.AreEqual("Last Action: Line number 0 was deleted.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Close();
+        }
+
+        [TestMethod]
+        [TestCategory("DebugInput")]
+        public void UndoSeveralLinesTest()
+        {
+            Window mainWindow = setupapp();
+            Thread.Sleep(30);
+            Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugOne")).Click();
+            Thread.Sleep(7000);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugTwo")).Click();
+            Thread.Sleep(30000);
+            Assert.AreEqual("Last Action: Line number 1 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("UndoButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("UndoButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Close();
+        }
+
+        [TestMethod]
+        [TestCategory("DebugInput")]
+        public void RedoSeveralLinesTest()
+        {
+            Window mainWindow = setupapp();
+            Thread.Sleep(30);
+            Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugOne")).Click();
+            Thread.Sleep(7000);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugTwo")).Click();
+            Thread.Sleep(24000);
+            Assert.AreEqual("Last Action: Line number 1 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("UndoButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("UndoButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("RedoButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("RedoButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 1 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Close();
+        }
+
+        [TestMethod]
+        [TestCategory("DebugInput")]
+        public void UndoAndRedoTest()
+        {
+            Window mainWindow = setupapp();
+            Thread.Sleep(30);
+            Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugOne")).Click();
+            Thread.Sleep(7000);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugTwo")).Click();
+            Thread.Sleep(24000);
+            Assert.AreEqual("Last Action: Line number 1 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("UndoButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("UndoButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("RedoButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("RedoButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 1 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("DeleteButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugThree")).Click();
+            Thread.Sleep(7000);
+            Assert.AreEqual("Last Action: Line number 0 was deleted.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("UndoButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 1 was deleted.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Close();
+        }
+
+        [TestMethod]
+        [TestCategory("DebugInput")]
+        public void UndoAndDrawTest()
+        {
+            Window mainWindow = setupapp();
+            Thread.Sleep(30);
+            Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugFour")).Click();
+            Thread.Sleep(2000);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("UndoButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugFour")).Click();
+            Thread.Sleep(2000);
+            Assert.AreEqual("Last Action: Line number 1 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Close();
+        }
+
+        [TestMethod]
+        [TestCategory("DebugInput")]
+        public void DeleteSeveralLinesAtOnceTest()
+        {
+            Window mainWindow = setupapp();
+            Thread.Sleep(30);
+            Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugFour")).Click();
+            Thread.Sleep(2000);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugFour")).Click();
+            Thread.Sleep(2000);
+            Assert.AreEqual("Last Action: Line number 1 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("DeleteButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugFour")).Click();
+            Thread.Sleep(2000);
+            Assert.AreEqual("Last Action: Several Lines were deleted.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Close();
+        }
+
+        [TestMethod]
+        [TestCategory("DebugInput")]
+        public void PointDrawTest()
+        {
+            Window mainWindow = setupapp();
+            Thread.Sleep(30);
+            Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugFour")).Click();
+            Thread.Sleep(4000);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Close();
+        }
+
+        [TestMethod]
+        [TestCategory("DebugInput")]
+        public void NewCanvasAfterDrawTest()
+        {
+            Window mainWindow = setupapp();
+            Thread.Sleep(30);
+            Assert.AreEqual("none", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("EditMenuButton")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugMode")).Click();
+            Thread.Sleep(30);
+            mainWindow.Get<Menu>(SearchCriteria.ByAutomationId("DebugThree")).Click();
+            Thread.Sleep(4000);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            // Click on No button in warning
+            Window messageBox0 = mainWindow.MessageBox("Warning");
+            messageBox0.Get<Button>(SearchCriteria.ByText("No")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            // close warning
+            Window messageBox1 = mainWindow.MessageBox("Warning");
+            messageBox1.Close();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: Line number 0 was drawn.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Get<Button>(SearchCriteria.ByAutomationId("CanvasButton")).Click();
+            Thread.Sleep(30);
+            // click yes button on warning
+            Window messageBox2 = mainWindow.MessageBox("Warning");
+            messageBox2.Get<Button>(SearchCriteria.ByText("Yes")).Click();
+            Thread.Sleep(30);
+            Assert.AreEqual("Last Action: A new canvas was created.", mainWindow.Get<TextBox>(SearchCriteria.ByAutomationId("LastActionBox")).Text.ToString());
+            Thread.Sleep(30);
+            mainWindow.Close();
+        }
+    }
+
+    [TestClass]
+    public class FileImporterTests
+    {
+        /// <summary>
+        /// The directory of the input files, saved for repeated use
+        /// </summary>
+        private String input_file_dir = null;
+        /// <summary>
+        /// instance of TestContext to be able to access deployed files
+        /// </summary>
+        private TestContext testContextInstance;
+        /// <summary>
+        ///Gets or sets the test context which provides
+        ///information about and functionality for the current test run.
+        ///</summary>
+        public TestContext TestContext
+        {
+            get
+            {
+                return testContextInstance;
+            }
+            set
+            {
+                testContextInstance = value;
+            }
+        }
+
+        /// <summary>
+        /// A function that returns the path to the test_input_files folder. 
+        /// Do with it what you want.
+        /// </summary>
+        /// <returns>the path to the test_input_files folder</returns>
+        public String getSketchAssistantDirectory()
+        {
+            Regex rx = new Regex(@"^(.*\\SketchAssistant\\)");
+            Match match = rx.Match(TestContext.DeploymentDirectory);
+            String SketchAssistDir = match.Groups[1].Value;
+            if (input_file_dir == null)
+            {
+                if (Directory.Exists(SketchAssistDir + @"\WhiteTests\test_input_files\"))
+                {
+                    input_file_dir = SketchAssistDir + @"\WhiteTests\test_input_files\";
+                }
+                else if (Directory.Exists(SketchAssistDir + @"\WhiteTests\bin\Debug\test_input_files\"))
+                {
+                    input_file_dir = SketchAssistDir + @"\WhiteTests\bin\Debug\test_input_files\";
+                }
+                else
+                {
+                    Regex rx_0 = new Regex(@"^(.*\\projects\\)");
+                    Match match_0 = rx_0.Match(TestContext.DeploymentDirectory);
+                    String ProjectsDir = match_0.Groups[1].Value;
+                    var dirs = Directory.GetDirectories(ProjectsDir, "test_input_files", SearchOption.AllDirectories);
+                    input_file_dir = dirs[0];
+                }
+            }
+            return input_file_dir;
+        }
+
+        /// <summary>
+        /// creates a valid .isad file from the given sets of coordinates (number divisible by 3) by creating a line for every three consecutive points, parses the file and verifies that all lines and their points have been parsed correctly
+        /// </summary>
+        /// <param name="xCoordinates">an array containing the x coordinates of the points that will be created (length divisible by 3)</param>
+        /// <param name="yCoordinates">an array containing the y coordinates of the points that will be created (length divisible by 3)</param>
+        [DataTestMethod]
+        [TestCategory("FileIO")]
+        [DataRow(new int[] { 54, 43, 57, 11, 145, 34, 113, 299, 0 }, new int[] { 33, 42, 140, 30, 30, 30, 32, 145, 2 })]
+        [DataRow(new int[] { 33, 42, 140, 30, 30, 30, 32, 145, 2 }, new int[] { 33, 42, 140, 30, 30, 30, 32, 145, 2 })]
+        [DataRow(new int[] { 33, 42, 140, 30, 30, 30, 32, 145, 2 }, new int[] { 54, 43, 57, 11, 145, 34, 113, 199, 0 })]
+        public void ParseISADInputSuccessfulTest(int[] xCoordinates, int[] yCoordinates)
+        {
+            FileImporter uut = new FileImporter();
+
+            List<String> file = new List<string>();
+            file.Add("drawing");
+            file.Add("300x200");
+            for (int i = 0; i < xCoordinates.Length - 2; i += 3)
+            {
+                file.Add("line");
+                file.Add(xCoordinates[i] + ";" + yCoordinates[i]);
+                file.Add(xCoordinates[i + 1] + ";" + yCoordinates[i + 1]);
+                file.Add(xCoordinates[i + 2] + ";" + yCoordinates[i + 2]);
+                file.Add("endline");
+            }
+            file.Add("enddrawing");
+
+            Tuple<int, int, List<InternalLine>> values = uut.ParseISADInputForTesting(file.ToArray());
+
+            Assert.AreEqual(xCoordinates.Length / 3, values.Item3.Count);
+            InternalLine[] lines = values.Item3.ToArray();
+            for (int i = 0; i < xCoordinates.Length - 2; i += 3)
+            {
+                Point[] currentLine = lines[i / 3].GetPoints().ToArray();
+                Assert.AreEqual(3, currentLine.Length);
+                for (int j = 0; j < 3; j++)
+                {
+                    Assert.IsTrue(currentLine[j].X == xCoordinates[i + j] && currentLine[j].Y == yCoordinates[i + j]);
+                }
+            }
+        }
+
+        /// <summary>
+        /// parses teh given invalid .isad files and verifies that a FileImporterException is thrown, but no other exception
+        /// </summary>
+        /// <param name="file">the input file represented as an array of lines</param>
+        [DataTestMethod]
+        [TestCategory("FileIO")]
+        [DataRow(new String[] { })]
+        [DataRow(new String[] { "begindrawing", "300x300", "line", "50;50", "100;50", "endline", "enddrawing" })]
+        [DataRow(new String[] { "drawing", "300;300", "line", "50;50", "100;50", "endline", "enddrawing" })]
+        [DataRow(new String[] { "drawing", "30.5x300", "line", "50;50", "100;50", "endline", "enddrawing" })]
+        [DataRow(new String[] { "drawing", "line", "50;50", "100;50", "endline", "enddrawing" })]
+        [DataRow(new String[] { "drawing", "300x300", "beginline", "50;50", "100;50", "endline", "enddrawing" })]
+        [DataRow(new String[] { "drawing", "300x300", "line", "500;50", "100;50", "endline", "enddrawing" })]
+        [DataRow(new String[] { "drawing", "300x300", "line", "50x50", "100;50", "endline", "enddrawing" })]
+        [DataRow(new String[] { "drawing", "300x300", "line", "50", "100", "endline", "enddrawing" })]
+        [DataRow(new String[] { "drawing", "300x300", "line", "50;50", "line", "endline", "enddrawing" })]
+        [DataRow(new String[] { "drawing", "300x300", "line", "50;50", "100;50", "stopline", "enddrawing" })]
+        [DataRow(new String[] { "drawing", "300x300", "line", "50;50", "100;50", "enddrawing" })]
+        [DataRow(new String[] { "drawing", "300x300", "line", "50;50", "100;50", "endline", "endrawing" })]
+        [DataRow(new String[] { "drawing", "300x300", "line", "50;50", "100;50", "endline" })]
+        public void ParseISADInputExceptionTest(String[] file)
+        {
+            bool correctExceptionThrown = false;
+
+            FileImporter uut = new FileImporter();
+
+            try
+            {
+                //try to initialize the left image with an invalid isad drawing
+                Tuple<int, int, List<InternalLine>> values1 = uut.ParseISADInputForTesting(file);
+            }
+            catch (FileImporterException e)
+            {
+                //save the occurence of an exception
+                correctExceptionThrown = true;
+                System.Diagnostics.Debug.WriteLine(e.ToString());
+            }
+            catch (Exception)
+            {
+                //don't set success flag
+            }
+            //check that an exception has been thrown
+            Assert.IsTrue(correctExceptionThrown);
+        }
+
+        /// <summary>
+        /// parses all whitelisted files and ensures no exceptions are thrown (parsing abortion, e.g. due to corrupted input files, are realized by throwing a FileImporterException)
+        /// </summary>
+        [TestMethod]
+        [TestCategory("FileIO")]
+        public void ParseSVGInputNoErrorForWhitelistedFilesTest()
+        {
+            FileImporter uut = new FileImporter();
+            string[] files = Directory.GetFiles(getSketchAssistantDirectory() + @"\whitelisted", "*.svg", SearchOption.AllDirectories);
+
+            Assert.IsTrue(files.Length > 0);
+
+            foreach (string s in files) //parse each of the whitelisted files
+            {
+                Console.WriteLine(s);
+                bool noExceptionThrown = true;
+                try
+                {
+                    uut.ParseSVGInputFile(s, 10000, 10000);
+                }
+                catch (Exception)
+                {
+                    noExceptionThrown = false;
+                }
+                Assert.IsTrue(noExceptionThrown);
+            }
+        }
+
+        /// <summary>
+        /// parses all blacklisted files and ensures an instance of FileIporterException is thrown for each file, but no other exceptions occur
+        /// </summary>
+        [TestMethod]
+        [TestCategory("FileIO")]
+        public void ParseSVGInputNoErrorForBlacklistedFilesTest()
+        {
+            FileImporter uut = new FileImporter();
+
+            string[] files = Directory.GetFiles(getSketchAssistantDirectory() + @"\blacklisted", "*.svg", SearchOption.AllDirectories);
+            Assert.IsTrue(files.Length > 0);
+            foreach (string s in files) //parse each of the blacklisted files
+            {
+                bool correctExceptionThrown = false;
+                try
+                {
+                    uut.ParseSVGInputFile(s, 10000, 10000);
+                }
+                catch (FileImporterException e)
+                {
+                    System.Diagnostics.Debug.WriteLine(e.ToString());
+                    correctExceptionThrown = true;
+                }
+                catch (Exception)
+                {
+                }
+                Assert.IsTrue(correctExceptionThrown);
+            }
+        }
+    }
+
+    [TestClass]
+    public class SimilarityCalculationTests
+    {
+        /// <summary>
+        /// The debug data element used to generate random lines.
+        /// </summary>
+        private DebugData DebugData = new DebugData();
+
+        /// <summary>
+        /// Generates random lines and tests how similar they are. 
+        /// To test the similarity score always stays between 0 and 1.
+        /// </summary>
+        [TestMethod]
+        [TestCategory("UnitTest")]
+        public void StaysWithinParameters()
+        {
+            Parallel.For(1, 100,
+                i =>
+                {
+                    InternalLine l0 = DebugData.GetRandomLine(1, (uint)i);
+                    InternalLine l1 = DebugData.GetRandomLine(1, (uint)i);
+                    var sim = GeometryCalculator.CalculateSimilarity(l0, l1);
+                    Assert.IsTrue((sim >= 0));
+                    Assert.IsTrue((sim <= 1));
+                });
+        }
+
+        [TestMethod]
+        [TestCategory("UnitTest")]
+        public void CorrectSimilarity()
+        {
+            Parallel.ForEach(DebugData.GetSimilarityTestData(),
+                tup =>
+                {
+                    InternalLine l0 = tup.Item1;
+                    InternalLine l1 = tup.Item2;
+                    var sim = GeometryCalculator.CalculateSimilarity(l0, l1);
+                    Assert.AreEqual(tup.Item3, sim, 0.00000001);
+                });
+        }
+
+    }
+
+    [TestClass]
+    public class InternalLineUnitTests
+    {
+        /// <summary>
+        /// The debug data element used to generate random lines.
+        /// </summary>
+        private DebugData DebugData = new DebugData();
+
+        [TestMethod]
+        [TestCategory("UnitTest")]
+        public void MakePermanentTest()
+        {
+
+            List<Point> points = new List<Point>();
+            points.AddRange(DebugData.debugPoints4);
+            InternalLine uut = new InternalLine(points);
+            Assert.AreEqual(false, uut.isPoint);
+            uut.MakePermanent(5);
+            Assert.AreEqual(true, uut.isPoint);
+            Assert.AreEqual(5, uut.GetID());
+            Assert.AreEqual(0, uut.GetLength());
+        }
+
+        [DataTestMethod]
+        [TestCategory("UnitTest")]
+        [DataRow(new int[] { 1, 1, 3, 3 }, new int[] { 1, 1, 2, 2, 3, 3 }, false, 2.828427125)]
+        [DataRow(new int[] { 1, 1, 3, 3 }, new int[] { 1, 1, 2, 2, 3, 3 }, true, 2.828427125)]
+        [DataRow(new int[] { 1, 1, 1, 4, 3, 4 }, new int[] { 1, 1, 1, 2, 1, 3, 1, 4, 2, 4, 3, 4 }, false, 5)]
+        [DataRow(new int[] { 1, 1, 1, 4, 3, 4 }, new int[] { 1, 1, 1, 2, 1, 3, 1, 4, 2, 4, 3, 4 }, true, 5)]
+        public void PermanentLineTest(int[] inPoints, int[] outPoints, bool isTemp, double len)
+        {
+            List<Point> inLine = new List<Point>(); List<Point> outLine = new List<Point>();
+            for (int i = 0; i < inPoints.Length; i += 2) inLine.Add(new Point(inPoints[i], inPoints[i + 1]));
+            for (int i = 0; i < outPoints.Length; i += 2) outLine.Add(new Point(outPoints[i], outPoints[i + 1]));
+            InternalLine uut;
+            if (isTemp)
+            {
+                uut = new InternalLine(inLine);
+                var zip = inLine.Zip(uut.GetPoints(), (a, b) => new Tuple<Point, Point>(a, b));
+                foreach (Tuple<Point, Point> tup in zip)
+                {
+                    Assert.AreEqual(tup.Item1, tup.Item2);
+                }
+            }
+            else
+            {
+                uut = new InternalLine(inLine, 0);
+                var zip = outLine.Zip(uut.GetPoints(), (a, b) => new Tuple<Point, Point>(a, b));
+                foreach (Tuple<Point, Point> tup in zip)
+                {
+                    Assert.AreEqual(tup.Item1, tup.Item2);
+                }
+            }
+            Assert.AreEqual(len, uut.GetLength(), 0.000001);
+        }
     }
 }

SketchAssistant/WhiteTests/WhiteTests.csproj

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\packages\ReportGenerator.4.0.15\build\netstandard2.0\ReportGenerator.props" Condition="Exists('..\packages\ReportGenerator.4.0.15\build\netstandard2.0\ReportGenerator.props')" />
   <Import Project="..\packages\MSTest.TestAdapter.1.4.0\build\net45\MSTest.TestAdapter.props" Condition="Exists('..\packages\MSTest.TestAdapter.1.4.0\build\net45\MSTest.TestAdapter.props')" />
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
@@ -38,6 +39,9 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
+  <PropertyGroup>
+    <StartupObject />
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="Castle.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc, processorArchitecture=MSIL">
       <HintPath>..\packages\Castle.Core.4.3.1\lib\net45\Castle.Core.dll</HintPath>
@@ -48,13 +52,20 @@
     <Reference Include="Microsoft.VisualStudio.TestPlatform.TestFramework.Extensions, Version=14.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>..\packages\MSTest.TestFramework.1.4.0\lib\net45\Microsoft.VisualStudio.TestPlatform.TestFramework.Extensions.dll</HintPath>
     </Reference>
+    <Reference Include="PresentationFramework" />
     <Reference Include="System" />
     <Reference Include="System.Configuration" />
     <Reference Include="System.Core" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows" />
+    <Reference Include="System.Windows.Forms" />
     <Reference Include="TestStack.White, Version=0.13.0.0, Culture=neutral, PublicKeyToken=2672efbf3e161801, processorArchitecture=MSIL">
       <HintPath>..\packages\TestStack.White.0.13.3\lib\net40\TestStack.White.dll</HintPath>
     </Reference>
     <Reference Include="WindowsBase" />
+    <Reference Include="WindowsInput, Version=1.0.4.0, Culture=neutral, PublicKeyToken=9b287f7dc5073cad, processorArchitecture=MSIL">
+      <HintPath>..\packages\InputSimulator.1.0.4.0\lib\net20\WindowsInput.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="UITest.cs" />
@@ -70,6 +81,37 @@
       <Name>SketchAssistantWPF</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup />
+  <ItemGroup>
+    <Content Include="test_input_files\blacklisted\all_no_size_def_in_header.svg">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+    <Content Include="test_input_files\blacklisted\all_unclosed.svg">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+    <Content Include="test_input_files\whitelisted\all.svg">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+    <Content Include="test_input_files\whitelisted\circle_ellipse.svg">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+    <Content Include="test_input_files\whitelisted\line.svg">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+    <Content Include="test_input_files\whitelisted\path.svg">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+    <Content Include="test_input_files\whitelisted\polygon.svg">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+    <Content Include="test_input_files\whitelisted\polyline.svg">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+    <Content Include="test_input_files\whitelisted\rect.svg">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+    <None Include="test.runsettings" />
+  </ItemGroup>
   <Import Project="$(VSToolsPath)\TeamTest\Microsoft.TestTools.targets" Condition="Exists('$(VSToolsPath)\TeamTest\Microsoft.TestTools.targets')" />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
@@ -78,6 +120,11 @@
     </PropertyGroup>
     <Error Condition="!Exists('..\packages\MSTest.TestAdapter.1.4.0\build\net45\MSTest.TestAdapter.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\MSTest.TestAdapter.1.4.0\build\net45\MSTest.TestAdapter.props'))" />
     <Error Condition="!Exists('..\packages\MSTest.TestAdapter.1.4.0\build\net45\MSTest.TestAdapter.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\MSTest.TestAdapter.1.4.0\build\net45\MSTest.TestAdapter.targets'))" />
+    <Error Condition="!Exists('..\packages\ReportGenerator.4.0.15\build\netstandard2.0\ReportGenerator.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\ReportGenerator.4.0.15\build\netstandard2.0\ReportGenerator.props'))" />
   </Target>
   <Import Project="..\packages\MSTest.TestAdapter.1.4.0\build\net45\MSTest.TestAdapter.targets" Condition="Exists('..\packages\MSTest.TestAdapter.1.4.0\build\net45\MSTest.TestAdapter.targets')" />
+  <PropertyGroup>
+    <PostBuildEvent>
+    </PostBuildEvent>
+  </PropertyGroup>
 </Project>

SketchAssistant/WhiteTests/packages.config

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Castle.Core" version="4.3.1" targetFramework="net461" />
+  <package id="InputSimulator" version="1.0.4.0" targetFramework="net461" />
   <package id="MSTest.TestAdapter" version="1.4.0" targetFramework="net461" />
   <package id="MSTest.TestFramework" version="1.4.0" targetFramework="net461" />
   <package id="TestStack.White" version="0.13.3" targetFramework="net461" />

SketchAssistant/WhiteTests/test.runsettings

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<RunSettings>
+  <!-- MSTest adapter -->
+  <MSTest>
+    <MapInconclusiveToFailed>True</MapInconclusiveToFailed>
+    <DeleteDeploymentDirectoryAfterTestRunIsComplete>False</DeleteDeploymentDirectoryAfterTestRunIsComplete>
+    <DeploymentEnabled>False</DeploymentEnabled>
+  </MSTest>
+
+</RunSettings>

SketchAssistant/WhiteTests/test_input_files/blacklisted/all_no_size_def_in_header.svg

@@ -0,0 +1,30 @@
+fsfwefafaefcSC
+F
+S
+FSFewFAHBfAg
+<DSFVSF>
+<GSG FS02MAFfm="Fmseikf" />
+source: https://www.w3schools.com/
+<svg>
+  <polygon points="220,10 300,210 170,250 123,234" style="fill:lime;stroke:purple;stroke-width:1" />
+  <polyline points="20,20 40,25 60,40 80,120 120,140 200,180"
+  style="fill:none;stroke:black;stroke-width:3" />
+    <line x1="0" y1="0" x2="200" y2="200" style="stroke:rgb(255,0,0);stroke-width:2" />
+  <rect x="50" y="20" width="150" height="150"
+  style="fill:blue;stroke:pink;stroke-width:5;fill-opacity:0.1;stroke-opacity:0.9" />
+  <rect x="352.324" y="311.765" fill="#5486F7" width="4" height="128"/>
+  <rect x="478.871" y="266.351" fill="#FFFFFF" width="12" height="12"/>
+  <ellipse cx="250" cy="250" rx="100" ry="50"
+  style="fill:yellow;stroke:purple;stroke-width:2" />
+  <ellipse cx="240" cy="100" rx="220" ry="30" style="fill:purple" />
+  <ellipse cx="220" cy="70" rx="190" ry="20" style="fill:lime" />
+  <ellipse cx="210" cy="45" rx="170" ry="15" style="fill:yellow" />
+  <path id="lineAB" d="M 100 350 l 150 -300" stroke="red"
+  stroke-width="3" fill="none" />
+  <path id="lineBC" d="M 250 50 l 150 300" stroke="red"
+  stroke-width="3" fill="none" />
+  <path d="M 175 200 l 150 0" stroke="green" stroke-width="3"
+  fill="none" />
+  <path d="M 100 350 q 150 -300 300 0" stroke="blue"
+  stroke-width="5" fill="none" />
+</svg>

SketchAssistant/WhiteTests/test_input_files/blacklisted/all_unclosed.svg

@@ -0,0 +1,29 @@
+fsfwefafaefcSC
+F
+S
+FSFewFAHBfAg
+<DSFVSF>
+<GSG FS02MAFfm="Fmseikf" />
+source: https://www.w3schools.com/
+<svg height="500" width="500">
+  <polygon points="220,10 300,210 170,250 123,234" style="fill:lime;stroke:purple;stroke-width:1" />
+  <polyline points="20,20 40,25 60,40 80,120 120,140 200,180"
+  style="fill:none;stroke:black;stroke-width:3" />
+    <line x1="0" y1="0" x2="200" y2="200" style="stroke:rgb(255,0,0);stroke-width:2" />
+  <rect x="50" y="20" width="150" height="150"
+  style="fill:blue;stroke:pink;stroke-width:5;fill-opacity:0.1;stroke-opacity:0.9" />
+  <rect x="352.324" y="311.765" fill="#5486F7" width="4" height="128"/>
+  <rect x="478.871" y="266.351" fill="#FFFFFF" width="12" height="12"/>
+  <ellipse cx="250" cy="250" rx="100" ry="50"
+  style="fill:yellow;stroke:purple;stroke-width:2" />
+  <ellipse cx="240" cy="100" rx="220" ry="30" style="fill:purple" />
+  <ellipse cx="220" cy="70" rx="190" ry="20" style="fill:lime" />
+  <ellipse cx="210" cy="45" rx="170" ry="15" style="fill:yellow" />
+  <path id="lineAB" d="M 100 350 l 150 -300" stroke="red"
+  stroke-width="3" fill="none" />
+  <path id="lineBC" d="M 250 50 l 150 300" stroke="red"
+  stroke-width="3" fill="none" />
+  <path d="M 175 200 l 150 0" stroke="green" stroke-width="3"
+  fill="none" />
+  <path d="M 100 350 q 150 -300 300 0" stroke="blue"
+  stroke-width="5" fill="none" />

SketchAssistant/WhiteTests/test_input_files/whitelisted/all.svg

@@ -0,0 +1,30 @@
+fsfwefafaefcSC
+F
+S
+FSFewFAHBfAg
+<DSFVSF>
+<GSG FS02MAFfm="Fmseikf" />
+source: https://www.w3schools.com/
+<svg height="500" width="500">
+  <polygon points="220,10 300,210 170,250 123,234" style="fill:lime;stroke:purple;stroke-width:1" />
+  <polyline points="20,20 40,25 60,40 80,120 120,140 200,180"
+  style="fill:none;stroke:black;stroke-width:3" />
+    <line x1="0" y1="0" x2="200" y2="200" style="stroke:rgb(255,0,0);stroke-width:2" />
+  <rect x="50" y="20" width="150" height="150"
+  style="fill:blue;stroke:pink;stroke-width:5;fill-opacity:0.1;stroke-opacity:0.9" />
+  <rect x="352.324" y="311.765" fill="#5486F7" width="4" height="128"/>
+  <rect x="478.871" y="266.351" fill="#FFFFFF" width="12" height="12"/>
+  <ellipse cx="250" cy="250" rx="100" ry="50"
+  style="fill:yellow;stroke:purple;stroke-width:2" />
+  <ellipse cx="240" cy="100" rx="220" ry="30" style="fill:purple" />
+  <ellipse cx="220" cy="70" rx="190" ry="20" style="fill:lime" />
+  <ellipse cx="210" cy="45" rx="170" ry="15" style="fill:yellow" />
+  <path id="lineAB" d="M 100 350 l 150 -300" stroke="red"
+  stroke-width="3" fill="none" />
+  <path id="lineBC" d="M 250 50 l 150 300" stroke="red"
+  stroke-width="3" fill="none" />
+  <path d="M 175 200 l 150 0" stroke="green" stroke-width="3"
+  fill="none" />
+  <path d="M 100 350 q 150 -300 300 0" stroke="blue"
+  stroke-width="5" fill="none" />
+</svg>

SketchAssistant/WhiteTests/test_input_files/whitelisted/circle_ellipse.svg

@@ -0,0 +1,14 @@
+fsfwefafaefcSC
+F
+S
+FSFewFAHBfAg
+<DSFVSF>
+<GSG FS02MAFfm="Fmseikf" />
+source: https://www.w3schools.com/
+<svg height="5000" width="5000">
+  <ellipse cx="2500" cy="2500" rx="1000" ry="500"
+  style="fill:yellow;stroke:purple;stroke-width:2" />
+  <ellipse cx="2400" cy="1000" rx="2200" ry="300" style="fill:purple" />
+  <ellipse cx="2200" cy="700" rx="1900" ry="200" style="fill:lime" />
+  <ellipse cx="2100" cy="450" rx="1700" ry="150" style="fill:yellow" />
+</svg>

SketchAssistant/WhiteTests/test_input_files/whitelisted/line.svg

@@ -0,0 +1,10 @@
+fsfwefafaefcSC
+F
+S
+FSFewFAHBfAg
+<DSFVSF>
+<GSG FS02MAFfm="Fmseikf" />
+source: https://www.w3schools.com/
+<svg height="500" width="500">
+  <line x1="0" y1="0" x2="200" y2="200" style="stroke:rgb(255,0,0);stroke-width:2" />
+</svg>

SketchAssistant/WhiteTests/test_input_files/whitelisted/path.svg

@@ -0,0 +1,21 @@
+fsfwefafaefcSC
+F
+S
+FSFewFAHBfAg
+<DSFVSF>
+<GSG FS02MAFfm="Fmseikf" />
+source: https://www.w3schools.com/
+<svg height="600" width="1200">
+  <path id="lineAB" d="M 100 350 l 150 -300" stroke="red"
+  stroke-width="3" fill="none" />
+  <path id="lineBC" d="M 250 50 l 150 300" stroke="red"
+  stroke-width="3" fill="none" />
+  <path d="M 100 350 q 150 -300 300 0 z M 175 200 l 150 0" stroke="blue"
+  stroke-width="5" fill="none" />
+  <path d="M 100 100 a 60 60 0 0 0 100 0 Z"
+      fill="yellow" stroke="blue" stroke-width="5" />
+  <path d="M 100 200 a 150 120 45 1 0 100 100"
+      fill="yellow" stroke="blue" stroke-width="5" />
+  <path d="M200,300 Q400,50 600,300 T1000,300"
+        fill="none" stroke="red" stroke-width="5"  />
+</svg>

SketchAssistant/WhiteTests/test_input_files/whitelisted/polygon.svg

@@ -0,0 +1,10 @@
+fsfwefafaefcSC
+F
+S
+FSFewFAHBfAg
+<DSFVSF>
+<GSG FS02MAFfm="Fmseikf" />
+source: https://www.w3schools.com/
+<svg height="500" width="500">
+  <polygon points="220,10 300,210 170,250 123,234" style="fill:lime;stroke:purple;stroke-width:1" />
+</svg>

SketchAssistant/WhiteTests/test_input_files/whitelisted/polyline.svg

@@ -0,0 +1,11 @@
+fsfwefafaefcSC
+F
+S
+FSFewFAHBfAg
+<DSFVSF>
+<GSG FS02MAFfm="Fmseikf" />
+source: https://www.w3schools.com/
+<svg height="500" width="500">
+  <polyline points="20,20 40,25 60,40 80,120 120,140 200,180"
+  style="fill:none;stroke:black;stroke-width:3" />
+</svg>

SketchAssistant/WhiteTests/test_input_files/whitelisted/rect.svg

@@ -0,0 +1,13 @@
+fsfwefafaefcSC
+F
+S
+FSFewFAHBfAg
+<DSFVSF>
+<GSG FS02MAFfm="Fmseikf" />
+source: https://www.w3schools.com/
+<svg height="500" width="500">
+  <rect x="50" y="20" width="150" height="150"
+  style="fill:blue;stroke:pink;stroke-width:5;fill-opacity:0.1;stroke-opacity:0.9" />
+  <rect x="352.324" y="311.765" fill="#5486F7" width="4" height="128"/>
+  <rect x="478.871" y="266.351" fill="#FFFFFF" width="12" height="12"/>
+</svg>

screenres.ps1

@@ -0,0 +1,126 @@
+# http://blogs.technet.com/b/heyscriptingguy/archive/2010/07/07/hey-scripting-guy-how-can-i-change-my-desktop-monitor-resolution-via-windows-powershell.aspx
+
+Function Set-ScreenResolution { 
+param ( 
+[Parameter(Mandatory=$true, 
+           Position = 0)] 
+[int] 
+$Width, 
+[Parameter(Mandatory=$true, 
+           Position = 1)] 
+[int] 
+$Height 
+) 
+$pinvokeCode = @" 
+using System; 
+using System.Runtime.InteropServices; 
+namespace Resolution 
+{ 
+    [StructLayout(LayoutKind.Sequential)] 
+    public struct DEVMODE1 
+    { 
+        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] 
+        public string dmDeviceName; 
+        public short dmSpecVersion; 
+        public short dmDriverVersion; 
+        public short dmSize; 
+        public short dmDriverExtra; 
+        public int dmFields; 
+        public short dmOrientation; 
+        public short dmPaperSize; 
+        public short dmPaperLength; 
+        public short dmPaperWidth; 
+        public short dmScale; 
+        public short dmCopies; 
+        public short dmDefaultSource; 
+        public short dmPrintQuality; 
+        public short dmColor; 
+        public short dmDuplex; 
+        public short dmYResolution; 
+        public short dmTTOption; 
+        public short dmCollate; 
+        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] 
+        public string dmFormName; 
+        public short dmLogPixels; 
+        public short dmBitsPerPel; 
+        public int dmPelsWidth; 
+        public int dmPelsHeight; 
+        public int dmDisplayFlags; 
+        public int dmDisplayFrequency; 
+        public int dmICMMethod; 
+        public int dmICMIntent; 
+        public int dmMediaType; 
+        public int dmDitherType; 
+        public int dmReserved1; 
+        public int dmReserved2; 
+        public int dmPanningWidth; 
+        public int dmPanningHeight; 
+    }; 
+    class User_32 
+    { 
+        [DllImport("user32.dll")] 
+        public static extern int EnumDisplaySettings(string deviceName, int modeNum, ref DEVMODE1 devMode); 
+        [DllImport("user32.dll")] 
+        public static extern int ChangeDisplaySettings(ref DEVMODE1 devMode, int flags); 
+        public const int ENUM_CURRENT_SETTINGS = -1; 
+        public const int CDS_UPDATEREGISTRY = 0x01; 
+        public const int CDS_TEST = 0x02; 
+        public const int DISP_CHANGE_SUCCESSFUL = 0; 
+        public const int DISP_CHANGE_RESTART = 1; 
+        public const int DISP_CHANGE_FAILED = -1; 
+    } 
+    public class PrmaryScreenResolution 
+    { 
+        static public string ChangeResolution(int width, int height) 
+        { 
+            DEVMODE1 dm = GetDevMode1(); 
+            if (0 != User_32.EnumDisplaySettings(null, User_32.ENUM_CURRENT_SETTINGS, ref dm)) 
+            { 
+                dm.dmPelsWidth = width; 
+                dm.dmPelsHeight = height; 
+                int iRet = User_32.ChangeDisplaySettings(ref dm, User_32.CDS_TEST); 
+                if (iRet == User_32.DISP_CHANGE_FAILED) 
+                { 
+                    return "Unable To Process Your Request. Sorry For This Inconvenience."; 
+                } 
+                else 
+                { 
+                    iRet = User_32.ChangeDisplaySettings(ref dm, User_32.CDS_UPDATEREGISTRY); 
+                    switch (iRet) 
+                    { 
+                        case User_32.DISP_CHANGE_SUCCESSFUL: 
+                            { 
+                                return "Success"; 
+                            } 
+                        case User_32.DISP_CHANGE_RESTART: 
+                            { 
+                                return "You Need To Reboot For The Change To Happen.\n If You Feel Any Problem After Rebooting Your Machine\nThen Try To Change Resolution In Safe Mode."; 
+                            } 
+                        default: 
+                            { 
+                                return "Failed To Change The Resolution"; 
+                            } 
+                    } 
+                } 
+            } 
+            else 
+            { 
+                return "Failed To Change The Resolution."; 
+            } 
+        } 
+        private static DEVMODE1 GetDevMode1() 
+        { 
+            DEVMODE1 dm = new DEVMODE1(); 
+            dm.dmDeviceName = new String(new char[32]); 
+            dm.dmFormName = new String(new char[32]); 
+            dm.dmSize = (short)Marshal.SizeOf(dm); 
+            return dm; 
+        } 
+    } 
+} 
+"@ 
+Add-Type $pinvokeCode -ErrorAction SilentlyContinue 
+[Resolution.PrmaryScreenResolution]::ChangeResolution($width,$height) 
+}
+
+Set-ScreenResolution 1920 1080

userstory20.md

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+# Userstory 20 
+ 
+|**ID**|20|  
+|-|-|
+|**Name**|Tracken des Fingerpoints|
+|**Beschreibung**|Als Auftraggeber wünsche ich, dass das die Position des Cursors nicht mehr durch das berühren der Videowall bestimmt wird, sondern durch einen am Finger angebrachten Trackingpoint.|
+|**Akzeptanzkriterium**|Die Position des Cursors muss mithilfe des Motion Caputre Systems bestimmt werden. Das heißt, dass der Zeichenweg durch die Bewegung der Hand bestimmt wird.|
+|Geschätzter Aufwand (Story Points)|keine|
+|Entwickler|Rumei, Dennis|
+|Umgesetzt in Iteration|keine|
+|Tatsächlicher Aufwand (Std.)|keine|
+|Velocity (Std./Story Point)|keine|
+|Bemerkungen|Keine|