Add CPP stuff

trackpoint-cpp/CMakeLists.txt

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+CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
+PROJECT(osgExample)
+
+FIND_PACKAGE(OpenSceneGraph REQUIRED COMPONENTS osgViewer osgDB osgGA osgText)
+
+SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+
+INCLUDE_DIRECTORIES(
+    ${OPENSCENEGRAPH_INCLUDE_DIRS}
+)
+
+ADD_EXECUTABLE(osgExample main.cpp)
+ADD_EXECUTABLE(osgTransform transforms.cpp)
+
+TARGET_LINK_LIBRARIES(osgExample
+    ${OPENSCENEGRAPH_LIBRARIES}
+)
+
+TARGET_LINK_LIBRARIES(osgTransform
+    ${OPENSCENEGRAPH_LIBRARIES}
+)

trackpoint-cpp/main.cpp

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+#include <osg/Referenced>
+#include <osg/Geometry>
+#include <osg/Geode>
+#include <osg/Array>
+#include <osgViewer/Viewer>
+
+int main(int argc, char** argv)
+{
+    // Create the geometry which will define the triangle
+    osg::ref_ptr<osg::Geometry> myTriangleGeometry = new osg::Geometry;
+
+    // Define the triangle's 3 vertices
+    osg::ref_ptr<osg::Vec3Array> vertices = new osg::Vec3Array;
+    vertices->push_back(osg::Vec3(0, 0, 0));
+    vertices->push_back(osg::Vec3(100, 0, 0));
+    vertices->push_back(osg::Vec3(0, 0, 100));
+    myTriangleGeometry->setVertexArray(vertices);
+
+    // You can give each vertex its own color, but let's just make it green for now
+    osg::ref_ptr<osg::Vec4Array> colors = new osg::Vec4Array;
+    colors->push_back(osg::Vec4(0, 1.0, 0, 1.0)); // RGBA for green
+    myTriangleGeometry->setColorArray(colors);
+    myTriangleGeometry->setColorBinding(osg::Geometry::BIND_OVERALL);
+
+    // Turn off lighting
+    myTriangleGeometry->getOrCreateStateSet()->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
+
+    // Turn on blending
+    myTriangleGeometry->getOrCreateStateSet()->setMode(GL_BLEND, osg::StateAttribute::ON);
+
+    // Define the geometry type as 'triangles'
+    myTriangleGeometry->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::TRIANGLES, 0, vertices->size()));
+
+    // Finally, let's add our triangle to a geode
+    osg::ref_ptr<osg::Geode> myGeode = new osg::Geode;
+    myGeode->addDrawable(myTriangleGeometry);
+
+    // And now we can create a viewer to look at our geode
+    osgViewer::Viewer viewer;
+    viewer.setSceneData(myGeode);
+    return viewer.run();
+}

trackpoint-cpp/transforms.cpp

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+#include <osgViewer/Viewer>
+#include <osgDB/ReadFile>
+#include <osg/Group>
+#include <osg/MatrixTransform>
+#include <osg/Matrix>
+#include <osgGA/TrackballManipulator>
+
+int main(int argc, char** argv)
+{
+    // Root node of the scene
+    osg::ref_ptr<osg::Group> root = new osg::Group;
+
+    // Create the viewer
+    osgViewer::Viewer viewer;
+    viewer.setSceneData(root);
+    viewer.realize();
+
+    // Add axesNode under root
+    osg::ref_ptr<osg::Node> axesNode = osgDB::readNodeFile("test.stl");
+    if (!axesNode)
+    {
+        printf("Origin node not loaded, model not found\n");
+        return 1;
+    }
+    root->addChild(axesNode);
+
+    // Attach a manipulator (it's usually done for us when we use viewer.run())
+    osg::ref_ptr<osgGA::TrackballManipulator> tm = new osgGA::TrackballManipulator;
+    viewer.setCameraManipulator(tm);
+
+    return viewer.run();
+}