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<title>Graphics/Rendering/Chart/Plot/Points.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-2"></a><span class='hs-comment'>-- |</span>
<a name="line-3"></a><span class='hs-comment'>-- Module : Graphics.Rendering.Chart.Plot.Points</span>
<a name="line-4"></a><span class='hs-comment'>-- Copyright : (c) Tim Docker 2006, 2014</span>
<a name="line-5"></a><span class='hs-comment'>-- License : BSD-style (see chart/COPYRIGHT)</span>
<a name="line-6"></a><span class='hs-comment'>--</span>
<a name="line-7"></a><span class='hs-comment'>-- Functions to plot sets of points, marked in various styles.</span>
<a name="line-8"></a>
<a name="line-9"></a><span class='hs-comment'>{-# LANGUAGE TemplateHaskell #-}</span>
<a name="line-10"></a>
<a name="line-11"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>Chart</span><span class='hs-varop'>.</span><span class='hs-conid'>Plot</span><span class='hs-varop'>.</span><span class='hs-conid'>Points</span><span class='hs-layout'>(</span>
<a name="line-12"></a> <span class='hs-conid'>PlotPoints</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-13"></a>
<a name="line-14"></a> <span class='hs-comment'>-- * Accessors</span>
<a name="line-15"></a> <span class='hs-comment'>-- | These accessors are generated by template haskell</span>
<a name="line-16"></a>
<a name="line-17"></a> <span class='hs-varid'>plot_points_title</span><span class='hs-layout'>,</span>
<a name="line-18"></a> <span class='hs-varid'>plot_points_style</span><span class='hs-layout'>,</span>
<a name="line-19"></a> <span class='hs-varid'>plot_points_values</span><span class='hs-layout'>,</span>
<a name="line-20"></a><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-21"></a>
<a name="line-22"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Lens</span>
<a name="line-23"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>Chart</span><span class='hs-varop'>.</span><span class='hs-conid'>Geometry</span>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>Chart</span><span class='hs-varop'>.</span><span class='hs-conid'>Drawing</span>
<a name="line-25"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>Chart</span><span class='hs-varop'>.</span><span class='hs-conid'>Plot</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span>
<a name="line-26"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Default</span><span class='hs-varop'>.</span><span class='hs-conid'>Class</span>
<a name="line-27"></a>
<a name="line-28"></a><a name="PlotPoints"></a><span class='hs-comment'>-- | Value defining a series of datapoints, and a style in</span>
<a name="line-29"></a><a name="PlotPoints"></a><span class='hs-comment'>-- which to render them.</span>
<a name="line-30"></a><a name="PlotPoints"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>PlotPoints</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PlotPoints</span> <span class='hs-layout'>{</span>
<a name="line-31"></a> <span class='hs-sel'>_plot_points_title</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span><span class='hs-layout'>,</span>
<a name="line-32"></a> <span class='hs-sel'>_plot_points_style</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PointStyle</span><span class='hs-layout'>,</span>
<a name="line-33"></a> <span class='hs-sel'>_plot_points_values</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-34"></a><span class='hs-layout'>}</span>
<a name="line-35"></a>
<a name="line-36"></a><a name="instance%20ToPlot%20PlotPoints"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>ToPlot</span> <span class='hs-conid'>PlotPoints</span> <span class='hs-keyword'>where</span>
<a name="line-37"></a> <span class='hs-varid'>toPlot</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Plot</span> <span class='hs-layout'>{</span>
<a name="line-38"></a> <span class='hs-sel'>_plot_render</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>renderPlotPoints</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span>
<a name="line-39"></a> <span class='hs-sel'>_plot_legend</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-sel'>_plot_points_title</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-varid'>renderPlotLegendPoints</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-40"></a> <span class='hs-sel'>_plot_all_points</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>fst</span> <span class='hs-varid'>pts</span><span class='hs-layout'>,</span> <span class='hs-varid'>map</span> <span class='hs-varid'>snd</span> <span class='hs-varid'>pts</span><span class='hs-layout'>)</span>
<a name="line-41"></a> <span class='hs-layout'>}</span>
<a name="line-42"></a> <span class='hs-keyword'>where</span>
<a name="line-43"></a> <span class='hs-varid'>pts</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_plot_points_values</span> <span class='hs-varid'>p</span>
<a name="line-44"></a>
<a name="line-45"></a><a name="renderPlotPoints"></a><span class='hs-definition'>renderPlotPoints</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PlotPoints</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PointMapFn</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BackendProgram</span> <span class='hs-conid'>()</span>
<a name="line-46"></a><span class='hs-definition'>renderPlotPoints</span> <span class='hs-varid'>p</span> <span class='hs-varid'>pmap</span> <span class='hs-keyglyph'>=</span>
<a name="line-47"></a> <span class='hs-varid'>mapM_</span> <span class='hs-layout'>(</span><span class='hs-varid'>drawPoint</span> <span class='hs-varid'>ps</span> <span class='hs-varop'>.</span> <span class='hs-varid'>pmap'</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-sel'>_plot_points_values</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-48"></a> <span class='hs-keyword'>where</span>
<a name="line-49"></a> <span class='hs-varid'>pmap'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapXY</span> <span class='hs-varid'>pmap</span>
<a name="line-50"></a> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_plot_points_style</span> <span class='hs-varid'>p</span>
<a name="line-51"></a>
<a name="line-52"></a><a name="renderPlotLegendPoints"></a><span class='hs-definition'>renderPlotLegendPoints</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PlotPoints</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rect</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BackendProgram</span> <span class='hs-conid'>()</span>
<a name="line-53"></a><span class='hs-definition'>renderPlotLegendPoints</span> <span class='hs-varid'>p</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rect</span> <span class='hs-varid'>p1</span> <span class='hs-varid'>p2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-54"></a> <span class='hs-varid'>drawPoint</span> <span class='hs-varid'>ps</span> <span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-layout'>(</span><span class='hs-varid'>p_x</span> <span class='hs-varid'>p1</span><span class='hs-layout'>)</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-55"></a> <span class='hs-varid'>drawPoint</span> <span class='hs-varid'>ps</span> <span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>p_x</span> <span class='hs-varid'>p1</span> <span class='hs-varop'>+</span> <span class='hs-varid'>p_x</span> <span class='hs-varid'>p2</span><span class='hs-layout'>)</span><span class='hs-varop'>/</span><span class='hs-num'>2</span><span class='hs-layout'>)</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-56"></a> <span class='hs-varid'>drawPoint</span> <span class='hs-varid'>ps</span> <span class='hs-layout'>(</span><span class='hs-conid'>Point</span> <span class='hs-layout'>(</span><span class='hs-varid'>p_x</span> <span class='hs-varid'>p2</span><span class='hs-layout'>)</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-57"></a>
<a name="line-58"></a> <span class='hs-keyword'>where</span>
<a name="line-59"></a> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_plot_points_style</span> <span class='hs-varid'>p</span>
<a name="line-60"></a> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>p_y</span> <span class='hs-varid'>p1</span> <span class='hs-varop'>+</span> <span class='hs-varid'>p_y</span> <span class='hs-varid'>p2</span><span class='hs-layout'>)</span><span class='hs-varop'>/</span><span class='hs-num'>2</span>
<a name="line-61"></a>
<a name="line-62"></a><a name="instance%20Default%20(PlotPoints%20x%20y)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Default</span> <span class='hs-layout'>(</span><span class='hs-conid'>PlotPoints</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-63"></a> <span class='hs-varid'>def</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PlotPoints</span>
<a name="line-64"></a> <span class='hs-layout'>{</span> <span class='hs-sel'>_plot_points_title</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>""</span>
<a name="line-65"></a> <span class='hs-layout'>,</span> <span class='hs-sel'>_plot_points_style</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>def</span>
<a name="line-66"></a> <span class='hs-layout'>,</span> <span class='hs-sel'>_plot_points_values</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-67"></a> <span class='hs-layout'>}</span>
<a name="line-68"></a>
<a name="line-69"></a><span class='hs-varop'>$</span><span class='hs-layout'>(</span> <span class='hs-varid'>makeLenses</span> <span class='hs-chr'>'</span><span class='hs-chr'>'</span><span class='hs-conid'>PlotPoints</span> <span class='hs-layout'>)</span>
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