Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/VerticalCrossSectionChart.java @ 448:3cb2bea50456

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Generate iso line classes according gnv-issues/issue108 gnv-artifacts/trunk@496 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sun, 03 Jan 2010 12:16:55 +0000
parents f5a041000357
children c7ca2fce041f
rev   line source
446
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1 package de.intevation.gnv.chart;
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2
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3 import java.util.Locale;
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4
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5 import java.awt.Color;
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6 import java.awt.Paint;
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7
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8 import de.intevation.gnv.math.AttributedXYColumns;
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9
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10 import de.intevation.gnv.jfreechart.PolygonDataset;
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11 import de.intevation.gnv.jfreechart.PolygonPlot;
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12 import de.intevation.gnv.jfreechart.PolygonRenderer;
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13
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14 import de.intevation.gnv.raster.Palette;
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15
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16 import org.jfree.chart.JFreeChart;
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17
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18 import org.jfree.chart.plot.PlotOrientation;
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19
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20 import org.jfree.chart.axis.ValueAxis;
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21 import org.jfree.chart.axis.NumberAxis;
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22 import org.jfree.chart.axis.SymbolAxis;
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23
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24 import org.jfree.chart.title.PaintScaleLegend;
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25
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26 import org.jfree.chart.renderer.LookupPaintScale;
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27
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28 import org.jfree.ui.RectangleEdge;
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29 import org.jfree.ui.RectangleInsets;
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30
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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31 /**
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32 * @author Ingo Weinzierl (ingo.weinzierl@intevation.de)
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33 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de)
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34 */
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35 public class VerticalCrossSectionChart
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36 implements Chart
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37 {
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38 public static final class PalettePaintLookup
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39 implements PolygonRenderer.PaintLookup
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40 {
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41 private Palette palette;
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42
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43 public PalettePaintLookup(Palette palette) {
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44 this.palette = palette;
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45 }
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46
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47 public Paint getPaint(int index) {
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48 return index < 0
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49 ? Color.black
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50 : palette.getColor(index);
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51 }
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52 } // class PalettePaintLookup
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53
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54 protected JFreeChart chart;
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55
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56 protected AttributedXYColumns columns;
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57 protected Palette palette;
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58 protected Locale locale;
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59
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60 public VerticalCrossSectionChart() {
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61 }
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62
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63 public VerticalCrossSectionChart(
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64 AttributedXYColumns columns,
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65 Palette palette,
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66 Locale locale
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67 ) {
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68 this.columns = columns;
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69 this.palette = palette;
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70 this.locale = locale;
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71 }
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72
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73 protected JFreeChart createChart() {
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74
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75 String title = "Neues 2D-Diagramm";
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76 String xAxis = "x-Achse des Diagramms";
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77 String yAxis = "y-Achse des Diagramms";
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78 boolean legendB = false;
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79 boolean tooltips = false;
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80 boolean urls = false;
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81
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82 PlotOrientation po = PlotOrientation.HORIZONTAL;
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83 PolygonDataset data = columns.getPolygonDataset();
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84
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85 PolygonRenderer renderer = new PolygonRenderer(
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86 new PalettePaintLookup(palette));
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87
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88 ValueAxis domainAxis = new NumberAxis(xAxis);
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89 ValueAxis rangeAxis = new NumberAxis(yAxis);
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90
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91 PolygonPlot plot = new PolygonPlot(
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92 data,
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93 renderer,
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94 domainAxis,
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95 rangeAxis,
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96 null);
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97
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98 int colors = palette.getSize();
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99 LookupPaintScale lookupPaint =
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100 new LookupPaintScale(-0.5d, colors-0.5d, Color.white);
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101
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102 Color color = null;
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103
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104 String [] labels = new String[colors];
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105 for (int i = 0; i < colors; i++) {
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106 color = palette.getColor(colors-1-i);
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107 labels[i] = palette.getEntryByIndex(colors-1-i).getDescription();
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108 lookupPaint.add(i-0.5d, color);
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109 }
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110
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111 JFreeChart chart = new JFreeChart(
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112 title,
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113 JFreeChart.DEFAULT_TITLE_FONT,
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114 plot,
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115 legendB);
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116
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117 chart.removeLegend();
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118
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119 SymbolAxis scale = new SymbolAxis("Temperatur", labels);
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120 scale.setRange(-1.5d, colors+0.5d);
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121 scale.setGridBandsVisible(false);
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122 scale.setPlot(plot);
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123
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124 PaintScaleLegend legend = new PaintScaleLegend(
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125 lookupPaint, scale);
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126 legend.setMargin(new RectangleInsets(3d, 10d, 3d, 10d));
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127 legend.setPosition(RectangleEdge.LEFT);
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128 legend.setAxisOffset(5d);
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129
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130 chart.addSubtitle(legend);
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131
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132 return chart;
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133 }
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134
f5a041000357 Connected vertical cross section with chart generation.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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135 public JFreeChart generateChart() {
f5a041000357 Connected vertical cross section with chart generation.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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136 if (chart == null) {
f5a041000357 Connected vertical cross section with chart generation.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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137 chart = createChart();
f5a041000357 Connected vertical cross section with chart generation.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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138 }
f5a041000357 Connected vertical cross section with chart generation.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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139 return chart;
f5a041000357 Connected vertical cross section with chart generation.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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140 }
f5a041000357 Connected vertical cross section with chart generation.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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141 }
f5a041000357 Connected vertical cross section with chart generation.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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142 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org