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CrosshairState.html

CrosshairState.html 45 KB
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  1. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    2. 

  2. <html lang="en">
    3. 

  3. <head>
    4. 

  4. <title>Source code</title>
    5. 

  5. <link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style">
    6. 

  6. </head>
    7. 

  7. <body>
    8. 

  8. <div class="sourceContainer">
    9. 

  9. <pre><span class="sourceLineNo">001</span>/* ===========================================================<a name="line.1"></a>
    10. 

  10. <span class="sourceLineNo">002</span> * JFreeChart : a free chart library for the Java(tm) platform<a name="line.2"></a>
    11. 

  11. <span class="sourceLineNo">003</span> * ===========================================================<a name="line.3"></a>
    12. 

  12. <span class="sourceLineNo">004</span> *<a name="line.4"></a>
    13. 

  13. <span class="sourceLineNo">005</span> * (C) Copyright 2000-2013, by Object Refinery Limited and Contributors.<a name="line.5"></a>
    14. 

  14. <span class="sourceLineNo">006</span> *<a name="line.6"></a>
    15. 

  15. <span class="sourceLineNo">007</span> * Project Info:  http://www.jfree.org/jfreechart/index.html<a name="line.7"></a>
    16. 

  16. <span class="sourceLineNo">008</span> *<a name="line.8"></a>
    17. 

  17. <span class="sourceLineNo">009</span> * This library is free software; you can redistribute it and/or modify it<a name="line.9"></a>
    18. 

  18. <span class="sourceLineNo">010</span> * under the terms of the GNU Lesser General Public License as published by<a name="line.10"></a>
    19. 

  19. <span class="sourceLineNo">011</span> * the Free Software Foundation; either version 2.1 of the License, or<a name="line.11"></a>
    20. 

  20. <span class="sourceLineNo">012</span> * (at your option) any later version.<a name="line.12"></a>
    21. 

  21. <span class="sourceLineNo">013</span> *<a name="line.13"></a>
    22. 

  22. <span class="sourceLineNo">014</span> * This library is distributed in the hope that it will be useful, but<a name="line.14"></a>
    23. 

  23. <span class="sourceLineNo">015</span> * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY<a name="line.15"></a>
    24. 

  24. <span class="sourceLineNo">016</span> * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public<a name="line.16"></a>
    25. 

  25. <span class="sourceLineNo">017</span> * License for more details.<a name="line.17"></a>
    26. 

  26. <span class="sourceLineNo">018</span> *<a name="line.18"></a>
    27. 

  27. <span class="sourceLineNo">019</span> * You should have received a copy of the GNU Lesser General Public<a name="line.19"></a>
    28. 

  28. <span class="sourceLineNo">020</span> * License along with this library; if not, write to the Free Software<a name="line.20"></a>
    29. 

  29. <span class="sourceLineNo">021</span> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,<a name="line.21"></a>
    30. 

  30. <span class="sourceLineNo">022</span> * USA.<a name="line.22"></a>
    31. 

  31. <span class="sourceLineNo">023</span> *<a name="line.23"></a>
    32. 

  32. <span class="sourceLineNo">024</span> * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. <a name="line.24"></a>
    33. 

  33. <span class="sourceLineNo">025</span> * Other names may be trademarks of their respective owners.]<a name="line.25"></a>
    34. 

  34. <span class="sourceLineNo">026</span> *<a name="line.26"></a>
    35. 

  35. <span class="sourceLineNo">027</span> * -------------------<a name="line.27"></a>
    36. 

  36. <span class="sourceLineNo">028</span> * CrosshairState.java<a name="line.28"></a>
    37. 

  37. <span class="sourceLineNo">029</span> * -------------------<a name="line.29"></a>
    38. 

  38. <span class="sourceLineNo">030</span> * (C) Copyright 2002-2008, by Object Refinery Limited.<a name="line.30"></a>
    39. 

  39. <span class="sourceLineNo">031</span> *<a name="line.31"></a>
    40. 

  40. <span class="sourceLineNo">032</span> * Original Author:  David Gilbert (for Object Refinery Limited);<a name="line.32"></a>
    41. 

  41. <span class="sourceLineNo">033</span> * Contributor(s):   -;<a name="line.33"></a>
    42. 

  42. <span class="sourceLineNo">034</span> *<a name="line.34"></a>
    43. 

  43. <span class="sourceLineNo">035</span> * Changes<a name="line.35"></a>
    44. 

  44. <span class="sourceLineNo">036</span> * -------<a name="line.36"></a>
    45. 

  45. <span class="sourceLineNo">037</span> * 24-Jan-2002 : Version 1 (DG);<a name="line.37"></a>
    46. 

  46. <span class="sourceLineNo">038</span> * 05-Mar-2002 : Added Javadoc comments (DG);<a name="line.38"></a>
    47. 

  47. <span class="sourceLineNo">039</span> * 26-Sep-2002 : Fixed errors reported by Checkstyle (DG);<a name="line.39"></a>
    48. 

  48. <span class="sourceLineNo">040</span> * 19-Sep-2003 : Modified crosshair distance calculation (DG);<a name="line.40"></a>
    49. 

  49. <span class="sourceLineNo">041</span> * 04-Dec-2003 : Crosshair anchor point now stored outside chart since it is<a name="line.41"></a>
    50. 

  50. <span class="sourceLineNo">042</span> *               dependent on the display target (DG);<a name="line.42"></a>
    51. 

  51. <span class="sourceLineNo">043</span> * 25-Feb-2004 : Replaced CrosshairInfo --&gt; CrosshairState (DG);<a name="line.43"></a>
    52. 

  52. <span class="sourceLineNo">044</span> * ------------- JFREECHART 1.0.x ---------------------------------------------<a name="line.44"></a>
    53. 

  53. <span class="sourceLineNo">045</span> * 13-Oct-2006 : Fixed initialisation of CrosshairState - see bug report<a name="line.45"></a>
    54. 

  54. <span class="sourceLineNo">046</span> *               1565168 (DG);<a name="line.46"></a>
    55. 

  55. <span class="sourceLineNo">047</span> * 06-Feb-2007 : Added new fields and methods to fix bug 1086307 (DG);<a name="line.47"></a>
    56. 

  56. <span class="sourceLineNo">048</span> * 26-Jun-2008 : Now tracks dataset index (DG);<a name="line.48"></a>
    57. 

  57. <span class="sourceLineNo">049</span> *<a name="line.49"></a>
    58. 

  58. <span class="sourceLineNo">050</span> */<a name="line.50"></a>
    59. 

  59. <span class="sourceLineNo">051</span><a name="line.51"></a>
    60. 

  60. <span class="sourceLineNo">052</span>package org.jfree.chart.plot;<a name="line.52"></a>
    61. 

  61. <span class="sourceLineNo">053</span><a name="line.53"></a>
    62. 

  62. <span class="sourceLineNo">054</span>import java.awt.geom.Point2D;<a name="line.54"></a>
    63. 

  63. <span class="sourceLineNo">055</span><a name="line.55"></a>
    64. 

  64. <span class="sourceLineNo">056</span>/**<a name="line.56"></a>
    65. 

  65. <span class="sourceLineNo">057</span> * Maintains state information about crosshairs on a plot between successive<a name="line.57"></a>
    66. 

  66. <span class="sourceLineNo">058</span> * calls to the renderer's draw method.  This class is used internally by<a name="line.58"></a>
    67. 

  67. <span class="sourceLineNo">059</span> * JFreeChart - it is not intended for external use.<a name="line.59"></a>
    68. 

  68. <span class="sourceLineNo">060</span> */<a name="line.60"></a>
    69. 

  69. <span class="sourceLineNo">061</span>public class CrosshairState {<a name="line.61"></a>
    70. 

  70. <span class="sourceLineNo">062</span><a name="line.62"></a>
    71. 

  71. <span class="sourceLineNo">063</span>    /**<a name="line.63"></a>
    72. 

  72. <span class="sourceLineNo">064</span>     * A flag that controls whether the distance is calculated in data space<a name="line.64"></a>
    73. 

  73. <span class="sourceLineNo">065</span>     * or Java2D space.<a name="line.65"></a>
    74. 

  74. <span class="sourceLineNo">066</span>     */<a name="line.66"></a>
    75. 

  75. <span class="sourceLineNo">067</span>    private boolean calculateDistanceInDataSpace = false;<a name="line.67"></a>
    76. 

  76. <span class="sourceLineNo">068</span><a name="line.68"></a>
    77. 

  77. <span class="sourceLineNo">069</span>    /** The x-value (in data space) for the anchor point. */<a name="line.69"></a>
    78. 

  78. <span class="sourceLineNo">070</span>    private double anchorX;<a name="line.70"></a>
    79. 

  79. <span class="sourceLineNo">071</span><a name="line.71"></a>
    80. 

  80. <span class="sourceLineNo">072</span>    /** The y-value (in data space) for the anchor point. */<a name="line.72"></a>
    81. 

  81. <span class="sourceLineNo">073</span>    private double anchorY;<a name="line.73"></a>
    82. 

  82. <span class="sourceLineNo">074</span><a name="line.74"></a>
    83. 

  83. <span class="sourceLineNo">075</span>    /** The anchor point in Java2D space - if null, don't update crosshair. */<a name="line.75"></a>
    84. 

  84. <span class="sourceLineNo">076</span>    private Point2D anchor;<a name="line.76"></a>
    85. 

  85. <span class="sourceLineNo">077</span><a name="line.77"></a>
    86. 

  86. <span class="sourceLineNo">078</span>    /** The x-value for the current crosshair point. */<a name="line.78"></a>
    87. 

  87. <span class="sourceLineNo">079</span>    private double crosshairX;<a name="line.79"></a>
    88. 

  88. <span class="sourceLineNo">080</span><a name="line.80"></a>
    89. 

  89. <span class="sourceLineNo">081</span>    /** The y-value for the current crosshair point. */<a name="line.81"></a>
    90. 

  90. <span class="sourceLineNo">082</span>    private double crosshairY;<a name="line.82"></a>
    91. 

  91. <span class="sourceLineNo">083</span><a name="line.83"></a>
    92. 

  92. <span class="sourceLineNo">084</span>    /**<a name="line.84"></a>
    93. 

  93. <span class="sourceLineNo">085</span>     * The dataset index that the crosshair point relates to (this determines<a name="line.85"></a>
    94. 

  94. <span class="sourceLineNo">086</span>     * the axes that the crosshairs will be plotted against).<a name="line.86"></a>
    95. 

  95. <span class="sourceLineNo">087</span>     *<a name="line.87"></a>
    96. 

  96. <span class="sourceLineNo">088</span>     * @since 1.0.11<a name="line.88"></a>
    97. 

  97. <span class="sourceLineNo">089</span>     */<a name="line.89"></a>
    98. 

  98. <span class="sourceLineNo">090</span>    private int datasetIndex;<a name="line.90"></a>
    99. 

  99. <span class="sourceLineNo">091</span><a name="line.91"></a>
    100. 

  100. <span class="sourceLineNo">092</span>    /**<a name="line.92"></a>
    101. 

  101. <span class="sourceLineNo">093</span>     * The index of the domain axis that the crosshair x-value is measured<a name="line.93"></a>
    102. 

  102. <span class="sourceLineNo">094</span>     * against.<a name="line.94"></a>
    103. 

  103. <span class="sourceLineNo">095</span>     *<a name="line.95"></a>
    104. 

  104. <span class="sourceLineNo">096</span>     * @since 1.0.4<a name="line.96"></a>
    105. 

  105. <span class="sourceLineNo">097</span>     */<a name="line.97"></a>
    106. 

  106. <span class="sourceLineNo">098</span>    private int domainAxisIndex;<a name="line.98"></a>
    107. 

  107. <span class="sourceLineNo">099</span><a name="line.99"></a>
    108. 

  108. <span class="sourceLineNo">100</span>    /**<a name="line.100"></a>
    109. 

  109. <span class="sourceLineNo">101</span>     * The index of the range axis that the crosshair y-value is measured<a name="line.101"></a>
    110. 

  110. <span class="sourceLineNo">102</span>     * against.<a name="line.102"></a>
    111. 

  111. <span class="sourceLineNo">103</span>     *<a name="line.103"></a>
    112. 

  112. <span class="sourceLineNo">104</span>     * @since 1.0.4<a name="line.104"></a>
    113. 

  113. <span class="sourceLineNo">105</span>     */<a name="line.105"></a>
    114. 

  114. <span class="sourceLineNo">106</span>    private int rangeAxisIndex;<a name="line.106"></a>
    115. 

  115. <span class="sourceLineNo">107</span><a name="line.107"></a>
    116. 

  116. <span class="sourceLineNo">108</span>    /**<a name="line.108"></a>
    117. 

  117. <span class="sourceLineNo">109</span>     * The smallest distance (so far) between the anchor point and a data<a name="line.109"></a>
    118. 

  118. <span class="sourceLineNo">110</span>     * point.<a name="line.110"></a>
    119. 

  119. <span class="sourceLineNo">111</span>     */<a name="line.111"></a>
    120. 

  120. <span class="sourceLineNo">112</span>    private double distance;<a name="line.112"></a>
    121. 

  121. <span class="sourceLineNo">113</span><a name="line.113"></a>
    122. 

  122. <span class="sourceLineNo">114</span>    /**<a name="line.114"></a>
    123. 

  123. <span class="sourceLineNo">115</span>     * Creates a new &lt;code&gt;CrosshairState&lt;/code&gt; instance that calculates<a name="line.115"></a>
    124. 

  124. <span class="sourceLineNo">116</span>     * distance in Java2D space.<a name="line.116"></a>
    125. 

  125. <span class="sourceLineNo">117</span>     */<a name="line.117"></a>
    126. 

  126. <span class="sourceLineNo">118</span>    public CrosshairState() {<a name="line.118"></a>
    127. 

  127. <span class="sourceLineNo">119</span>        this(false);<a name="line.119"></a>
    128. 

  128. <span class="sourceLineNo">120</span>    }<a name="line.120"></a>
    129. 

  129. <span class="sourceLineNo">121</span><a name="line.121"></a>
    130. 

  130. <span class="sourceLineNo">122</span>    /**<a name="line.122"></a>
    131. 

  131. <span class="sourceLineNo">123</span>     * Creates a new &lt;code&gt;CrosshairState&lt;/code&gt; instance.<a name="line.123"></a>
    132. 

  132. <span class="sourceLineNo">124</span>     *<a name="line.124"></a>
    133. 

  133. <span class="sourceLineNo">125</span>     * @param calculateDistanceInDataSpace  a flag that controls whether the<a name="line.125"></a>
    134. 

  134. <span class="sourceLineNo">126</span>     *                                      distance is calculated in data<a name="line.126"></a>
    135. 

  135. <span class="sourceLineNo">127</span>     *                                      space or Java2D space.<a name="line.127"></a>
    136. 

  136. <span class="sourceLineNo">128</span>     */<a name="line.128"></a>
    137. 

  137. <span class="sourceLineNo">129</span>    public CrosshairState(boolean calculateDistanceInDataSpace) {<a name="line.129"></a>
    138. 

  138. <span class="sourceLineNo">130</span>        this.calculateDistanceInDataSpace = calculateDistanceInDataSpace;<a name="line.130"></a>
    139. 

  139. <span class="sourceLineNo">131</span>    }<a name="line.131"></a>
    140. 

  140. <span class="sourceLineNo">132</span><a name="line.132"></a>
    141. 

  141. <span class="sourceLineNo">133</span>    /**<a name="line.133"></a>
    142. 

  142. <span class="sourceLineNo">134</span>     * Returns the distance between the anchor point and the current crosshair<a name="line.134"></a>
    143. 

  143. <span class="sourceLineNo">135</span>     * point.<a name="line.135"></a>
    144. 

  144. <span class="sourceLineNo">136</span>     *<a name="line.136"></a>
    145. 

  145. <span class="sourceLineNo">137</span>     * @return The distance.<a name="line.137"></a>
    146. 

  146. <span class="sourceLineNo">138</span>     *<a name="line.138"></a>
    147. 

  147. <span class="sourceLineNo">139</span>     * @see #setCrosshairDistance(double)<a name="line.139"></a>
    148. 

  148. <span class="sourceLineNo">140</span>     * @since 1.0.3<a name="line.140"></a>
    149. 

  149. <span class="sourceLineNo">141</span>     */<a name="line.141"></a>
    150. 

  150. <span class="sourceLineNo">142</span>    public double getCrosshairDistance() {<a name="line.142"></a>
    151. 

  151. <span class="sourceLineNo">143</span>        return this.distance;<a name="line.143"></a>
    152. 

  152. <span class="sourceLineNo">144</span>    }<a name="line.144"></a>
    153. 

  153. <span class="sourceLineNo">145</span><a name="line.145"></a>
    154. 

  154. <span class="sourceLineNo">146</span>    /**<a name="line.146"></a>
    155. 

  155. <span class="sourceLineNo">147</span>     * Sets the distance between the anchor point and the current crosshair<a name="line.147"></a>
    156. 

  156. <span class="sourceLineNo">148</span>     * point.  As each data point is processed, its distance to the anchor<a name="line.148"></a>
    157. 

  157. <span class="sourceLineNo">149</span>     * point is compared with this value and, if it is closer, the data point<a name="line.149"></a>
    158. 

  158. <span class="sourceLineNo">150</span>     * becomes the new crosshair point.<a name="line.150"></a>
    159. 

  159. <span class="sourceLineNo">151</span>     *<a name="line.151"></a>
    160. 

  160. <span class="sourceLineNo">152</span>     * @param distance  the distance.<a name="line.152"></a>
    161. 

  161. <span class="sourceLineNo">153</span>     *<a name="line.153"></a>
    162. 

  162. <span class="sourceLineNo">154</span>     * @see #getCrosshairDistance()<a name="line.154"></a>
    163. 

  163. <span class="sourceLineNo">155</span>     */<a name="line.155"></a>
    164. 

  164. <span class="sourceLineNo">156</span>    public void setCrosshairDistance(double distance) {<a name="line.156"></a>
    165. 

  165. <span class="sourceLineNo">157</span>        this.distance = distance;<a name="line.157"></a>
    166. 

  166. <span class="sourceLineNo">158</span>    }<a name="line.158"></a>
    167. 

  167. <span class="sourceLineNo">159</span><a name="line.159"></a>
    168. 

  168. <span class="sourceLineNo">160</span>    /**<a name="line.160"></a>
    169. 

  169. <span class="sourceLineNo">161</span>     * Evaluates a data point and if it is the closest to the anchor point it<a name="line.161"></a>
    170. 

  170. <span class="sourceLineNo">162</span>     * becomes the new crosshair point.<a name="line.162"></a>
    171. 

  171. <span class="sourceLineNo">163</span>     * &lt;P&gt;<a name="line.163"></a>
    172. 

  172. <span class="sourceLineNo">164</span>     * To understand this method, you need to know the context in which it will<a name="line.164"></a>
    173. 

  173. <span class="sourceLineNo">165</span>     * be called.  An instance of this class is passed to an<a name="line.165"></a>
    174. 

  174. <span class="sourceLineNo">166</span>     * {@link org.jfree.chart.renderer.xy.XYItemRenderer} as<a name="line.166"></a>
    175. 

  175. <span class="sourceLineNo">167</span>     * each data point is plotted.  As the point is plotted, it is passed to<a name="line.167"></a>
    176. 

  176. <span class="sourceLineNo">168</span>     * this method to see if it should be the new crosshair point.<a name="line.168"></a>
    177. 

  177. <span class="sourceLineNo">169</span>     *<a name="line.169"></a>
    178. 

  178. <span class="sourceLineNo">170</span>     * @param x  x coordinate (measured against the domain axis).<a name="line.170"></a>
    179. 

  179. <span class="sourceLineNo">171</span>     * @param y  y coordinate (measured against the range axis).<a name="line.171"></a>
    180. 

  180. <span class="sourceLineNo">172</span>     * @param transX  x translated into Java2D space.<a name="line.172"></a>
    181. 

  181. <span class="sourceLineNo">173</span>     * @param transY  y translated into Java2D space.<a name="line.173"></a>
    182. 

  182. <span class="sourceLineNo">174</span>     * @param orientation  the plot orientation.<a name="line.174"></a>
    183. 

  183. <span class="sourceLineNo">175</span>     *<a name="line.175"></a>
    184. 

  184. <span class="sourceLineNo">176</span>     * @deprecated Use {@link #updateCrosshairPoint(double, double, int, int,<a name="line.176"></a>
    185. 

  185. <span class="sourceLineNo">177</span>     *     double, double, PlotOrientation)}.  See bug report 1086307.<a name="line.177"></a>
    186. 

  186. <span class="sourceLineNo">178</span>     */<a name="line.178"></a>
    187. 

  187. <span class="sourceLineNo">179</span>    public void updateCrosshairPoint(double x, double y,<a name="line.179"></a>
    188. 

  188. <span class="sourceLineNo">180</span>                                     double transX, double transY,<a name="line.180"></a>
    189. 

  189. <span class="sourceLineNo">181</span>                                     PlotOrientation orientation) {<a name="line.181"></a>
    190. 

  190. <span class="sourceLineNo">182</span>        updateCrosshairPoint(x, y, 0, 0, transX, transY, orientation);<a name="line.182"></a>
    191. 

  191. <span class="sourceLineNo">183</span>    }<a name="line.183"></a>
    192. 

  192. <span class="sourceLineNo">184</span><a name="line.184"></a>
    193. 

  193. <span class="sourceLineNo">185</span>    /**<a name="line.185"></a>
    194. 

  194. <span class="sourceLineNo">186</span>     * Evaluates a data point and if it is the closest to the anchor point it<a name="line.186"></a>
    195. 

  195. <span class="sourceLineNo">187</span>     * becomes the new crosshair point.<a name="line.187"></a>
    196. 

  196. <span class="sourceLineNo">188</span>     * &lt;P&gt;<a name="line.188"></a>
    197. 

  197. <span class="sourceLineNo">189</span>     * To understand this method, you need to know the context in which it will<a name="line.189"></a>
    198. 

  198. <span class="sourceLineNo">190</span>     * be called.  An instance of this class is passed to an<a name="line.190"></a>
    199. 

  199. <span class="sourceLineNo">191</span>     * {@link org.jfree.chart.renderer.xy.XYItemRenderer} as<a name="line.191"></a>
    200. 

  200. <span class="sourceLineNo">192</span>     * each data point is plotted.  As the point is plotted, it is passed to<a name="line.192"></a>
    201. 

  201. <span class="sourceLineNo">193</span>     * this method to see if it should be the new crosshair point.<a name="line.193"></a>
    202. 

  202. <span class="sourceLineNo">194</span>     *<a name="line.194"></a>
    203. 

  203. <span class="sourceLineNo">195</span>     * @param x  x coordinate (measured against the domain axis).<a name="line.195"></a>
    204. 

  204. <span class="sourceLineNo">196</span>     * @param y  y coordinate (measured against the range axis).<a name="line.196"></a>
    205. 

  205. <span class="sourceLineNo">197</span>     * @param domainAxisIndex  the index of the domain axis for this point.<a name="line.197"></a>
    206. 

  206. <span class="sourceLineNo">198</span>     * @param rangeAxisIndex  the index of the range axis for this point.<a name="line.198"></a>
    207. 

  207. <span class="sourceLineNo">199</span>     * @param transX  x translated into Java2D space.<a name="line.199"></a>
    208. 

  208. <span class="sourceLineNo">200</span>     * @param transY  y translated into Java2D space.<a name="line.200"></a>
    209. 

  209. <span class="sourceLineNo">201</span>     * @param orientation  the plot orientation.<a name="line.201"></a>
    210. 

  210. <span class="sourceLineNo">202</span>     *<a name="line.202"></a>
    211. 

  211. <span class="sourceLineNo">203</span>     * @since 1.0.4<a name="line.203"></a>
    212. 

  212. <span class="sourceLineNo">204</span>     */<a name="line.204"></a>
    213. 

  213. <span class="sourceLineNo">205</span>    public void updateCrosshairPoint(double x, double y, int domainAxisIndex,<a name="line.205"></a>
    214. 

  214. <span class="sourceLineNo">206</span>            int rangeAxisIndex, double transX, double transY,<a name="line.206"></a>
    215. 

  215. <span class="sourceLineNo">207</span>            PlotOrientation orientation) {<a name="line.207"></a>
    216. 

  216. <span class="sourceLineNo">208</span><a name="line.208"></a>
    217. 

  217. <span class="sourceLineNo">209</span>        if (this.anchor != null) {<a name="line.209"></a>
    218. 

  218. <span class="sourceLineNo">210</span>            double d = 0.0;<a name="line.210"></a>
    219. 

  219. <span class="sourceLineNo">211</span>            if (this.calculateDistanceInDataSpace) {<a name="line.211"></a>
    220. 

  220. <span class="sourceLineNo">212</span>                d = (x - this.anchorX) * (x - this.anchorX)<a name="line.212"></a>
    221. 

  221. <span class="sourceLineNo">213</span>                  + (y - this.anchorY) * (y - this.anchorY);<a name="line.213"></a>
    222. 

  222. <span class="sourceLineNo">214</span>            }<a name="line.214"></a>
    223. 

  223. <span class="sourceLineNo">215</span>            else {<a name="line.215"></a>
    224. 

  224. <span class="sourceLineNo">216</span>                double xx = this.anchor.getX();<a name="line.216"></a>
    225. 

  225. <span class="sourceLineNo">217</span>                double yy = this.anchor.getY();<a name="line.217"></a>
    226. 

  226. <span class="sourceLineNo">218</span>                if (orientation == PlotOrientation.HORIZONTAL) {<a name="line.218"></a>
    227. 

  227. <span class="sourceLineNo">219</span>                    double temp = yy;<a name="line.219"></a>
    228. 

  228. <span class="sourceLineNo">220</span>                    yy = xx;<a name="line.220"></a>
    229. 

  229. <span class="sourceLineNo">221</span>                    xx = temp;<a name="line.221"></a>
    230. 

  230. <span class="sourceLineNo">222</span>                }<a name="line.222"></a>
    231. 

  231. <span class="sourceLineNo">223</span>                d = (transX - xx) * (transX - xx)<a name="line.223"></a>
    232. 

  232. <span class="sourceLineNo">224</span>                    + (transY - yy) * (transY - yy);<a name="line.224"></a>
    233. 

  233. <span class="sourceLineNo">225</span>            }<a name="line.225"></a>
    234. 

  234. <span class="sourceLineNo">226</span><a name="line.226"></a>
    235. 

  235. <span class="sourceLineNo">227</span>            if (d &lt; this.distance) {<a name="line.227"></a>
    236. 

  236. <span class="sourceLineNo">228</span>                this.crosshairX = x;<a name="line.228"></a>
    237. 

  237. <span class="sourceLineNo">229</span>                this.crosshairY = y;<a name="line.229"></a>
    238. 

  238. <span class="sourceLineNo">230</span>                this.domainAxisIndex = domainAxisIndex;<a name="line.230"></a>
    239. 

  239. <span class="sourceLineNo">231</span>                this.rangeAxisIndex = rangeAxisIndex;<a name="line.231"></a>
    240. 

  240. <span class="sourceLineNo">232</span>                this.distance = d;<a name="line.232"></a>
    241. 

  241. <span class="sourceLineNo">233</span>            }<a name="line.233"></a>
    242. 

  242. <span class="sourceLineNo">234</span>        }<a name="line.234"></a>
    243. 

  243. <span class="sourceLineNo">235</span><a name="line.235"></a>
    244. 

  244. <span class="sourceLineNo">236</span>    }<a name="line.236"></a>
    245. 

  245. <span class="sourceLineNo">237</span><a name="line.237"></a>
    246. 

  246. <span class="sourceLineNo">238</span>    /**<a name="line.238"></a>
    247. 

  247. <span class="sourceLineNo">239</span>     * Evaluates an x-value and if it is the closest to the anchor x-value it<a name="line.239"></a>
    248. 

  248. <span class="sourceLineNo">240</span>     * becomes the new crosshair value.<a name="line.240"></a>
    249. 

  249. <span class="sourceLineNo">241</span>     * &lt;P&gt;<a name="line.241"></a>
    250. 

  250. <span class="sourceLineNo">242</span>     * Used in cases where only the x-axis is numerical.<a name="line.242"></a>
    251. 

  251. <span class="sourceLineNo">243</span>     *<a name="line.243"></a>
    252. 

  252. <span class="sourceLineNo">244</span>     * @param candidateX  x position of the candidate for the new crosshair<a name="line.244"></a>
    253. 

  253. <span class="sourceLineNo">245</span>     *                    point.<a name="line.245"></a>
    254. 

  254. <span class="sourceLineNo">246</span>     *<a name="line.246"></a>
    255. 

  255. <span class="sourceLineNo">247</span>     * @deprecated Use {@link #updateCrosshairX(double, int)}.  See bug report<a name="line.247"></a>
    256. 

  256. <span class="sourceLineNo">248</span>     *     1086307.<a name="line.248"></a>
    257. 

  257. <span class="sourceLineNo">249</span>     */<a name="line.249"></a>
    258. 

  258. <span class="sourceLineNo">250</span>    public void updateCrosshairX(double candidateX) {<a name="line.250"></a>
    259. 

  259. <span class="sourceLineNo">251</span>        updateCrosshairX(candidateX, 0);<a name="line.251"></a>
    260. 

  260. <span class="sourceLineNo">252</span>    }<a name="line.252"></a>
    261. 

  261. <span class="sourceLineNo">253</span><a name="line.253"></a>
    262. 

  262. <span class="sourceLineNo">254</span>    /**<a name="line.254"></a>
    263. 

  263. <span class="sourceLineNo">255</span>     * Evaluates an x-value and if it is the closest to the anchor x-value it<a name="line.255"></a>
    264. 

  264. <span class="sourceLineNo">256</span>     * becomes the new crosshair value.<a name="line.256"></a>
    265. 

  265. <span class="sourceLineNo">257</span>     * &lt;P&gt;<a name="line.257"></a>
    266. 

  266. <span class="sourceLineNo">258</span>     * Used in cases where only the x-axis is numerical.<a name="line.258"></a>
    267. 

  267. <span class="sourceLineNo">259</span>     *<a name="line.259"></a>
    268. 

  268. <span class="sourceLineNo">260</span>     * @param candidateX  x position of the candidate for the new crosshair<a name="line.260"></a>
    269. 

  269. <span class="sourceLineNo">261</span>     *                    point.<a name="line.261"></a>
    270. 

  270. <span class="sourceLineNo">262</span>     * @param domainAxisIndex  the index of the domain axis for this x-value.<a name="line.262"></a>
    271. 

  271. <span class="sourceLineNo">263</span>     *<a name="line.263"></a>
    272. 

  272. <span class="sourceLineNo">264</span>     * @since 1.0.4<a name="line.264"></a>
    273. 

  273. <span class="sourceLineNo">265</span>     */<a name="line.265"></a>
    274. 

  274. <span class="sourceLineNo">266</span>    public void updateCrosshairX(double candidateX, int domainAxisIndex) {<a name="line.266"></a>
    275. 

  275. <span class="sourceLineNo">267</span><a name="line.267"></a>
    276. 

  276. <span class="sourceLineNo">268</span>        double d = Math.abs(candidateX - this.anchorX);<a name="line.268"></a>
    277. 

  277. <span class="sourceLineNo">269</span>        if (d &lt; this.distance) {<a name="line.269"></a>
    278. 

  278. <span class="sourceLineNo">270</span>            this.crosshairX = candidateX;<a name="line.270"></a>
    279. 

  279. <span class="sourceLineNo">271</span>            this.domainAxisIndex = domainAxisIndex;<a name="line.271"></a>
    280. 

  280. <span class="sourceLineNo">272</span>            this.distance = d;<a name="line.272"></a>
    281. 

  281. <span class="sourceLineNo">273</span>        }<a name="line.273"></a>
    282. 

  282. <span class="sourceLineNo">274</span><a name="line.274"></a>
    283. 

  283. <span class="sourceLineNo">275</span>    }<a name="line.275"></a>
    284. 

  284. <span class="sourceLineNo">276</span><a name="line.276"></a>
    285. 

  285. <span class="sourceLineNo">277</span>    /**<a name="line.277"></a>
    286. 

  286. <span class="sourceLineNo">278</span>     * Evaluates a y-value and if it is the closest to the anchor y-value it<a name="line.278"></a>
    287. 

  287. <span class="sourceLineNo">279</span>     * becomes the new crosshair value.<a name="line.279"></a>
    288. 

  288. <span class="sourceLineNo">280</span>     * &lt;P&gt;<a name="line.280"></a>
    289. 

  289. <span class="sourceLineNo">281</span>     * Used in cases where only the y-axis is numerical.<a name="line.281"></a>
    290. 

  290. <span class="sourceLineNo">282</span>     *<a name="line.282"></a>
    291. 

  291. <span class="sourceLineNo">283</span>     * @param candidateY  y position of the candidate for the new crosshair<a name="line.283"></a>
    292. 

  292. <span class="sourceLineNo">284</span>     *                    point.<a name="line.284"></a>
    293. 

  293. <span class="sourceLineNo">285</span>     *<a name="line.285"></a>
    294. 

  294. <span class="sourceLineNo">286</span>     * @deprecated Use {@link #updateCrosshairY(double, int)}.  See bug report<a name="line.286"></a>
    295. 

  295. <span class="sourceLineNo">287</span>     *     1086307.<a name="line.287"></a>
    296. 

  296. <span class="sourceLineNo">288</span>     */<a name="line.288"></a>
    297. 

  297. <span class="sourceLineNo">289</span>    public void updateCrosshairY(double candidateY) {<a name="line.289"></a>
    298. 

  298. <span class="sourceLineNo">290</span>        updateCrosshairY(candidateY, 0);<a name="line.290"></a>
    299. 

  299. <span class="sourceLineNo">291</span>    }<a name="line.291"></a>
    300. 

  300. <span class="sourceLineNo">292</span><a name="line.292"></a>
    301. 

  301. <span class="sourceLineNo">293</span>    /**<a name="line.293"></a>
    302. 

  302. <span class="sourceLineNo">294</span>     * Evaluates a y-value and if it is the closest to the anchor y-value it<a name="line.294"></a>
    303. 

  303. <span class="sourceLineNo">295</span>     * becomes the new crosshair value.<a name="line.295"></a>
    304. 

  304. <span class="sourceLineNo">296</span>     * &lt;P&gt;<a name="line.296"></a>
    305. 

  305. <span class="sourceLineNo">297</span>     * Used in cases where only the y-axis is numerical.<a name="line.297"></a>
    306. 

  306. <span class="sourceLineNo">298</span>     *<a name="line.298"></a>
    307. 

  307. <span class="sourceLineNo">299</span>     * @param candidateY  y position of the candidate for the new crosshair<a name="line.299"></a>
    308. 

  308. <span class="sourceLineNo">300</span>     *                    point.<a name="line.300"></a>
    309. 

  309. <span class="sourceLineNo">301</span>     * @param rangeAxisIndex  the index of the range axis for this y-value.<a name="line.301"></a>
    310. 

  310. <span class="sourceLineNo">302</span>     *<a name="line.302"></a>
    311. 

  311. <span class="sourceLineNo">303</span>     * @since 1.0.4<a name="line.303"></a>
    312. 

  312. <span class="sourceLineNo">304</span>     */<a name="line.304"></a>
    313. 

  313. <span class="sourceLineNo">305</span>    public void updateCrosshairY(double candidateY, int rangeAxisIndex) {<a name="line.305"></a>
    314. 

  314. <span class="sourceLineNo">306</span>        double d = Math.abs(candidateY - this.anchorY);<a name="line.306"></a>
    315. 

  315. <span class="sourceLineNo">307</span>        if (d &lt; this.distance) {<a name="line.307"></a>
    316. 

  316. <span class="sourceLineNo">308</span>            this.crosshairY = candidateY;<a name="line.308"></a>
    317. 

  317. <span class="sourceLineNo">309</span>            this.rangeAxisIndex = rangeAxisIndex;<a name="line.309"></a>
    318. 

  318. <span class="sourceLineNo">310</span>            this.distance = d;<a name="line.310"></a>
    319. 

  319. <span class="sourceLineNo">311</span>        }<a name="line.311"></a>
    320. 

  320. <span class="sourceLineNo">312</span><a name="line.312"></a>
    321. 

  321. <span class="sourceLineNo">313</span>    }<a name="line.313"></a>
    322. 

  322. <span class="sourceLineNo">314</span><a name="line.314"></a>
    323. 

  323. <span class="sourceLineNo">315</span>    /**<a name="line.315"></a>
    324. 

  324. <span class="sourceLineNo">316</span>     * Returns the anchor point.<a name="line.316"></a>
    325. 

  325. <span class="sourceLineNo">317</span>     *<a name="line.317"></a>
    326. 

  326. <span class="sourceLineNo">318</span>     * @return The anchor point.<a name="line.318"></a>
    327. 

  327. <span class="sourceLineNo">319</span>     *<a name="line.319"></a>
    328. 

  328. <span class="sourceLineNo">320</span>     * @see #setAnchor(Point2D)<a name="line.320"></a>
    329. 

  329. <span class="sourceLineNo">321</span>     *<a name="line.321"></a>
    330. 

  330. <span class="sourceLineNo">322</span>     * @since 1.0.3<a name="line.322"></a>
    331. 

  331. <span class="sourceLineNo">323</span>     */<a name="line.323"></a>
    332. 

  332. <span class="sourceLineNo">324</span>    public Point2D getAnchor() {<a name="line.324"></a>
    333. 

  333. <span class="sourceLineNo">325</span>        return this.anchor;<a name="line.325"></a>
    334. 

  334. <span class="sourceLineNo">326</span>    }<a name="line.326"></a>
    335. 

  335. <span class="sourceLineNo">327</span><a name="line.327"></a>
    336. 

  336. <span class="sourceLineNo">328</span>    /**<a name="line.328"></a>
    337. 

  337. <span class="sourceLineNo">329</span>     * Sets the anchor point.  This is usually the mouse click point in a chart<a name="line.329"></a>
    338. 

  338. <span class="sourceLineNo">330</span>     * panel, and the crosshair point will often be the data item that is<a name="line.330"></a>
    339. 

  339. <span class="sourceLineNo">331</span>     * closest to the anchor point.<a name="line.331"></a>
    340. 

  340. <span class="sourceLineNo">332</span>     * &lt;br&gt;&lt;br&gt;<a name="line.332"></a>
    341. 

  341. <span class="sourceLineNo">333</span>     * Note that the x and y coordinates (in data space) are not updated by<a name="line.333"></a>
    342. 

  342. <span class="sourceLineNo">334</span>     * this method - the caller is responsible for ensuring that this happens<a name="line.334"></a>
    343. 

  343. <span class="sourceLineNo">335</span>     * in sync.<a name="line.335"></a>
    344. 

  344. <span class="sourceLineNo">336</span>     *<a name="line.336"></a>
    345. 

  345. <span class="sourceLineNo">337</span>     * @param anchor  the anchor point (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.337"></a>
    346. 

  346. <span class="sourceLineNo">338</span>     *<a name="line.338"></a>
    347. 

  347. <span class="sourceLineNo">339</span>     * @see #getAnchor()<a name="line.339"></a>
    348. 

  348. <span class="sourceLineNo">340</span>     */<a name="line.340"></a>
    349. 

  349. <span class="sourceLineNo">341</span>    public void setAnchor(Point2D anchor) {<a name="line.341"></a>
    350. 

  350. <span class="sourceLineNo">342</span>        this.anchor = anchor;<a name="line.342"></a>
    351. 

  351. <span class="sourceLineNo">343</span>    }<a name="line.343"></a>
    352. 

  352. <span class="sourceLineNo">344</span><a name="line.344"></a>
    353. 

  353. <span class="sourceLineNo">345</span>    /**<a name="line.345"></a>
    354. 

  354. <span class="sourceLineNo">346</span>     * Returns the x-coordinate (in data space) for the anchor point.<a name="line.346"></a>
    355. 

  355. <span class="sourceLineNo">347</span>     *<a name="line.347"></a>
    356. 

  356. <span class="sourceLineNo">348</span>     * @return The x-coordinate of the anchor point.<a name="line.348"></a>
    357. 

  357. <span class="sourceLineNo">349</span>     *<a name="line.349"></a>
    358. 

  358. <span class="sourceLineNo">350</span>     * @since 1.0.3<a name="line.350"></a>
    359. 

  359. <span class="sourceLineNo">351</span>     */<a name="line.351"></a>
    360. 

  360. <span class="sourceLineNo">352</span>    public double getAnchorX() {<a name="line.352"></a>
    361. 

  361. <span class="sourceLineNo">353</span>        return this.anchorX;<a name="line.353"></a>
    362. 

  362. <span class="sourceLineNo">354</span>    }<a name="line.354"></a>
    363. 

  363. <span class="sourceLineNo">355</span><a name="line.355"></a>
    364. 

  364. <span class="sourceLineNo">356</span>    /**<a name="line.356"></a>
    365. 

  365. <span class="sourceLineNo">357</span>     * Sets the x-coordinate (in data space) for the anchor point.  Note that<a name="line.357"></a>
    366. 

  366. <span class="sourceLineNo">358</span>     * this does NOT update the anchor itself - the caller is responsible for<a name="line.358"></a>
    367. 

  367. <span class="sourceLineNo">359</span>     * ensuring this is done in sync.<a name="line.359"></a>
    368. 

  368. <span class="sourceLineNo">360</span>     *<a name="line.360"></a>
    369. 

  369. <span class="sourceLineNo">361</span>     * @param x  the x-coordinate.<a name="line.361"></a>
    370. 

  370. <span class="sourceLineNo">362</span>     *<a name="line.362"></a>
    371. 

  371. <span class="sourceLineNo">363</span>     * @since 1.0.3<a name="line.363"></a>
    372. 

  372. <span class="sourceLineNo">364</span>     */<a name="line.364"></a>
    373. 

  373. <span class="sourceLineNo">365</span>    public void setAnchorX(double x) {<a name="line.365"></a>
    374. 

  374. <span class="sourceLineNo">366</span>        this.anchorX = x;<a name="line.366"></a>
    375. 

  375. <span class="sourceLineNo">367</span>    }<a name="line.367"></a>
    376. 

  376. <span class="sourceLineNo">368</span><a name="line.368"></a>
    377. 

  377. <span class="sourceLineNo">369</span>    /**<a name="line.369"></a>
    378. 

  378. <span class="sourceLineNo">370</span>     * Returns the y-coordinate (in data space) for the anchor point.<a name="line.370"></a>
    379. 

  379. <span class="sourceLineNo">371</span>     *<a name="line.371"></a>
    380. 

  380. <span class="sourceLineNo">372</span>     * @return The y-coordinate of teh anchor point.<a name="line.372"></a>
    381. 

  381. <span class="sourceLineNo">373</span>     *<a name="line.373"></a>
    382. 

  382. <span class="sourceLineNo">374</span>     * @since 1.0.3<a name="line.374"></a>
    383. 

  383. <span class="sourceLineNo">375</span>     */<a name="line.375"></a>
    384. 

  384. <span class="sourceLineNo">376</span>    public double getAnchorY() {<a name="line.376"></a>
    385. 

  385. <span class="sourceLineNo">377</span>        return this.anchorY;<a name="line.377"></a>
    386. 

  386. <span class="sourceLineNo">378</span>    }<a name="line.378"></a>
    387. 

  387. <span class="sourceLineNo">379</span><a name="line.379"></a>
    388. 

  388. <span class="sourceLineNo">380</span>    /**<a name="line.380"></a>
    389. 

  389. <span class="sourceLineNo">381</span>     * Sets the y-coordinate (in data space) for the anchor point.  Note that<a name="line.381"></a>
    390. 

  390. <span class="sourceLineNo">382</span>     * this does NOT update the anchor itself - the caller is responsible for<a name="line.382"></a>
    391. 

  391. <span class="sourceLineNo">383</span>     * ensuring this is done in sync.<a name="line.383"></a>
    392. 

  392. <span class="sourceLineNo">384</span>     *<a name="line.384"></a>
    393. 

  393. <span class="sourceLineNo">385</span>     * @param y  the y-coordinate.<a name="line.385"></a>
    394. 

  394. <span class="sourceLineNo">386</span>     *<a name="line.386"></a>
    395. 

  395. <span class="sourceLineNo">387</span>     * @since 1.0.3<a name="line.387"></a>
    396. 

  396. <span class="sourceLineNo">388</span>     */<a name="line.388"></a>
    397. 

  397. <span class="sourceLineNo">389</span>    public void setAnchorY(double y) {<a name="line.389"></a>
    398. 

  398. <span class="sourceLineNo">390</span>        this.anchorY = y;<a name="line.390"></a>
    399. 

  399. <span class="sourceLineNo">391</span>    }<a name="line.391"></a>
    400. 

  400. <span class="sourceLineNo">392</span><a name="line.392"></a>
    401. 

  401. <span class="sourceLineNo">393</span>    /**<a name="line.393"></a>
    402. 

  402. <span class="sourceLineNo">394</span>     * Get the x-value for the crosshair point.<a name="line.394"></a>
    403. 

  403. <span class="sourceLineNo">395</span>     *<a name="line.395"></a>
    404. 

  404. <span class="sourceLineNo">396</span>     * @return The x position of the crosshair point.<a name="line.396"></a>
    405. 

  405. <span class="sourceLineNo">397</span>     *<a name="line.397"></a>
    406. 

  406. <span class="sourceLineNo">398</span>     * @see #setCrosshairX(double)<a name="line.398"></a>
    407. 

  407. <span class="sourceLineNo">399</span>     */<a name="line.399"></a>
    408. 

  408. <span class="sourceLineNo">400</span>    public double getCrosshairX() {<a name="line.400"></a>
    409. 

  409. <span class="sourceLineNo">401</span>        return this.crosshairX;<a name="line.401"></a>
    410. 

  410. <span class="sourceLineNo">402</span>    }<a name="line.402"></a>
    411. 

  411. <span class="sourceLineNo">403</span><a name="line.403"></a>
    412. 

  412. <span class="sourceLineNo">404</span>    /**<a name="line.404"></a>
    413. 

  413. <span class="sourceLineNo">405</span>     * Sets the x coordinate for the crosshair.  This is the coordinate in data<a name="line.405"></a>
    414. 

  414. <span class="sourceLineNo">406</span>     * space measured against the domain axis.<a name="line.406"></a>
    415. 

  415. <span class="sourceLineNo">407</span>     *<a name="line.407"></a>
    416. 

  416. <span class="sourceLineNo">408</span>     * @param x the coordinate.<a name="line.408"></a>
    417. 

  417. <span class="sourceLineNo">409</span>     *<a name="line.409"></a>
    418. 

  418. <span class="sourceLineNo">410</span>     * @see #getCrosshairX()<a name="line.410"></a>
    419. 

  419. <span class="sourceLineNo">411</span>     * @see #setCrosshairY(double)<a name="line.411"></a>
    420. 

  420. <span class="sourceLineNo">412</span>     * @see #updateCrosshairPoint(double, double, double, double,<a name="line.412"></a>
    421. 

  421. <span class="sourceLineNo">413</span>     * PlotOrientation)<a name="line.413"></a>
    422. 

  422. <span class="sourceLineNo">414</span>     */<a name="line.414"></a>
    423. 

  423. <span class="sourceLineNo">415</span>    public void setCrosshairX(double x) {<a name="line.415"></a>
    424. 

  424. <span class="sourceLineNo">416</span>        this.crosshairX = x;<a name="line.416"></a>
    425. 

  425. <span class="sourceLineNo">417</span>    }<a name="line.417"></a>
    426. 

  426. <span class="sourceLineNo">418</span><a name="line.418"></a>
    427. 

  427. <span class="sourceLineNo">419</span>    /**<a name="line.419"></a>
    428. 

  428. <span class="sourceLineNo">420</span>     * Get the y-value for the crosshair point.  This is the coordinate in data<a name="line.420"></a>
    429. 

  429. <span class="sourceLineNo">421</span>     * space measured against the range axis.<a name="line.421"></a>
    430. 

  430. <span class="sourceLineNo">422</span>     *<a name="line.422"></a>
    431. 

  431. <span class="sourceLineNo">423</span>     * @return The y position of the crosshair point.<a name="line.423"></a>
    432. 

  432. <span class="sourceLineNo">424</span>     *<a name="line.424"></a>
    433. 

  433. <span class="sourceLineNo">425</span>     * @see #setCrosshairY(double)<a name="line.425"></a>
    434. 

  434. <span class="sourceLineNo">426</span>     */<a name="line.426"></a>
    435. 

  435. <span class="sourceLineNo">427</span>    public double getCrosshairY() {<a name="line.427"></a>
    436. 

  436. <span class="sourceLineNo">428</span>        return this.crosshairY;<a name="line.428"></a>
    437. 

  437. <span class="sourceLineNo">429</span>    }<a name="line.429"></a>
    438. 

  438. <span class="sourceLineNo">430</span><a name="line.430"></a>
    439. 

  439. <span class="sourceLineNo">431</span>    /**<a name="line.431"></a>
    440. 

  440. <span class="sourceLineNo">432</span>     * Sets the y coordinate for the crosshair.<a name="line.432"></a>
    441. 

  441. <span class="sourceLineNo">433</span>     *<a name="line.433"></a>
    442. 

  442. <span class="sourceLineNo">434</span>     * @param y  the y coordinate.<a name="line.434"></a>
    443. 

  443. <span class="sourceLineNo">435</span>     *<a name="line.435"></a>
    444. 

  444. <span class="sourceLineNo">436</span>     * @see #getCrosshairY()<a name="line.436"></a>
    445. 

  445. <span class="sourceLineNo">437</span>     * @see #setCrosshairX(double)<a name="line.437"></a>
    446. 

  446. <span class="sourceLineNo">438</span>     * @see #updateCrosshairPoint(double, double, double, double,<a name="line.438"></a>
    447. 

  447. <span class="sourceLineNo">439</span>     * PlotOrientation)<a name="line.439"></a>
    448. 

  448. <span class="sourceLineNo">440</span>     */<a name="line.440"></a>
    449. 

  449. <span class="sourceLineNo">441</span>    public void setCrosshairY(double y) {<a name="line.441"></a>
    450. 

  450. <span class="sourceLineNo">442</span>        this.crosshairY = y;<a name="line.442"></a>
    451. 

  451. <span class="sourceLineNo">443</span>    }<a name="line.443"></a>
    452. 

  452. <span class="sourceLineNo">444</span><a name="line.444"></a>
    453. 

  453. <span class="sourceLineNo">445</span>    /**<a name="line.445"></a>
    454. 

  454. <span class="sourceLineNo">446</span>     * Returns the dataset index that the crosshair values relate to.  The<a name="line.446"></a>
    455. 

  455. <span class="sourceLineNo">447</span>     * dataset is mapped to specific axes, and this is how the crosshairs are<a name="line.447"></a>
    456. 

  456. <span class="sourceLineNo">448</span>     * mapped also.<a name="line.448"></a>
    457. 

  457. <span class="sourceLineNo">449</span>     *<a name="line.449"></a>
    458. 

  458. <span class="sourceLineNo">450</span>     * @return The dataset index.<a name="line.450"></a>
    459. 

  459. <span class="sourceLineNo">451</span>     *<a name="line.451"></a>
    460. 

  460. <span class="sourceLineNo">452</span>     * @see #setDatasetIndex(int)<a name="line.452"></a>
    461. 

  461. <span class="sourceLineNo">453</span>     *<a name="line.453"></a>
    462. 

  462. <span class="sourceLineNo">454</span>     * @since 1.0.11<a name="line.454"></a>
    463. 

  463. <span class="sourceLineNo">455</span>     */<a name="line.455"></a>
    464. 

  464. <span class="sourceLineNo">456</span>    public int getDatasetIndex() {<a name="line.456"></a>
    465. 

  465. <span class="sourceLineNo">457</span>        return this.datasetIndex;<a name="line.457"></a>
    466. 

  466. <span class="sourceLineNo">458</span>    }<a name="line.458"></a>
    467. 

  467. <span class="sourceLineNo">459</span><a name="line.459"></a>
    468. 

  468. <span class="sourceLineNo">460</span>    /**<a name="line.460"></a>
    469. 

  469. <span class="sourceLineNo">461</span>     * Sets the dataset index that the current crosshair values relate to.<a name="line.461"></a>
    470. 

  470. <span class="sourceLineNo">462</span>     *<a name="line.462"></a>
    471. 

  471. <span class="sourceLineNo">463</span>     * @param index  the dataset index.<a name="line.463"></a>
    472. 

  472. <span class="sourceLineNo">464</span>     *<a name="line.464"></a>
    473. 

  473. <span class="sourceLineNo">465</span>     * @see #getDatasetIndex()<a name="line.465"></a>
    474. 

  474. <span class="sourceLineNo">466</span>     *<a name="line.466"></a>
    475. 

  475. <span class="sourceLineNo">467</span>     * @since 1.0.11<a name="line.467"></a>
    476. 

  476. <span class="sourceLineNo">468</span>     */<a name="line.468"></a>
    477. 

  477. <span class="sourceLineNo">469</span>    public void setDatasetIndex(int index) {<a name="line.469"></a>
    478. 

  478. <span class="sourceLineNo">470</span>        this.datasetIndex = index;<a name="line.470"></a>
    479. 

  479. <span class="sourceLineNo">471</span>    }<a name="line.471"></a>
    480. 

  480. <span class="sourceLineNo">472</span><a name="line.472"></a>
    481. 

  481. <span class="sourceLineNo">473</span>    /**<a name="line.473"></a>
    482. 

  482. <span class="sourceLineNo">474</span>     * Returns the domain axis index for the crosshair x-value.<a name="line.474"></a>
    483. 

  483. <span class="sourceLineNo">475</span>     *<a name="line.475"></a>
    484. 

  484. <span class="sourceLineNo">476</span>     * @return The domain axis index.<a name="line.476"></a>
    485. 

  485. <span class="sourceLineNo">477</span>     *<a name="line.477"></a>
    486. 

  486. <span class="sourceLineNo">478</span>     * @since 1.0.4<a name="line.478"></a>
    487. 

  487. <span class="sourceLineNo">479</span>     *<a name="line.479"></a>
    488. 

  488. <span class="sourceLineNo">480</span>     * @deprecated As of version 1.0.11, the domain axis should be determined<a name="line.480"></a>
    489. 

  489. <span class="sourceLineNo">481</span>     *     using the dataset index.<a name="line.481"></a>
    490. 

  490. <span class="sourceLineNo">482</span>     */<a name="line.482"></a>
    491. 

  491. <span class="sourceLineNo">483</span>    public int getDomainAxisIndex() {<a name="line.483"></a>
    492. 

  492. <span class="sourceLineNo">484</span>        return this.domainAxisIndex;<a name="line.484"></a>
    493. 

  493. <span class="sourceLineNo">485</span>    }<a name="line.485"></a>
    494. 

  494. <span class="sourceLineNo">486</span><a name="line.486"></a>
    495. 

  495. <span class="sourceLineNo">487</span>    /**<a name="line.487"></a>
    496. 

  496. <span class="sourceLineNo">488</span>     * Returns the range axis index for the crosshair y-value.<a name="line.488"></a>
    497. 

  497. <span class="sourceLineNo">489</span>     *<a name="line.489"></a>
    498. 

  498. <span class="sourceLineNo">490</span>     * @return The range axis index.<a name="line.490"></a>
    499. 

  499. <span class="sourceLineNo">491</span>     *<a name="line.491"></a>
    500. 

  500. <span class="sourceLineNo">492</span>     * @since 1.0.4<a name="line.492"></a>
    501. 

  501. <span class="sourceLineNo">493</span>     *<a name="line.493"></a>
    502. 

  502. <span class="sourceLineNo">494</span>     * @deprecated As of version 1.0.11, the domain axis should be determined<a name="line.494"></a>
    503. 

  503. <span class="sourceLineNo">495</span>     *     using the dataset index.<a name="line.495"></a>
    504. 

  504. <span class="sourceLineNo">496</span>     */<a name="line.496"></a>
    505. 

  505. <span class="sourceLineNo">497</span>    public int getRangeAxisIndex() {<a name="line.497"></a>
    506. 

  506. <span class="sourceLineNo">498</span>        return this.rangeAxisIndex;<a name="line.498"></a>
    507. 

  507. <span class="sourceLineNo">499</span>    }<a name="line.499"></a>
    508. 

  508. <span class="sourceLineNo">500</span><a name="line.500"></a>
    509. 

  509. <span class="sourceLineNo">501</span>}<a name="line.501"></a>
    510. 

  510. 

  511. 

  512. 

  513. 

  514. 

  515. 

  516. 

  517. 

  518. 

  519. 

  520. 

  521. 

  522. 

  523. 

  524. 

  525. 

  526. 

  527. 

  528. 

  529. 

  530. 

  531. 

  532. 

  533. 

  534. 

  535. 

  536. 

  537. 

  538. 

  539. 

  540. 

  541. 

  542. 

  543. 

  544. 

  545. 

  546. 

  547. 

  548. 

  549. 

  550. 

  551. 

  552. 

  553. 

  554. 

  555. 

  556. 

  557. 

  558. 

  559. 

  560. 

  561. 

  562. 

  563. 

  564. 

  565. 

  566. 

  567. 

  568. 

  569. 

  570. </pre>
    571. 

  571. </div>
    572. 

  572. </body>
    573. 

  573. </html>
    574.