Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/VerticalCrossSectionChart.java @ 449:c7ca2fce041f

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Add only color to scale of vertical cross section which are in the chart. gnv-artifacts/trunk@497 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sun, 03 Jan 2010 15:57:02 +0000
parents f5a041000357
children 20a480753ff9
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 java.util.HashSet;
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9
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10 import de.intevation.gnv.math.AttributedXYColumns;
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11
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12 import de.intevation.gnv.jfreechart.PolygonDataset;
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13 import de.intevation.gnv.jfreechart.PolygonPlot;
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14 import de.intevation.gnv.jfreechart.PolygonSeries;
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15 import de.intevation.gnv.jfreechart.PolygonRenderer;
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16
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17 import de.intevation.gnv.raster.Palette;
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18
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19 import org.jfree.chart.JFreeChart;
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20
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21 import org.jfree.chart.plot.PlotOrientation;
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22
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23 import org.jfree.chart.axis.ValueAxis;
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24 import org.jfree.chart.axis.NumberAxis;
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25 import org.jfree.chart.axis.SymbolAxis;
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26
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27 import org.jfree.chart.title.PaintScaleLegend;
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28
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29 import org.jfree.chart.renderer.LookupPaintScale;
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30
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31 import org.jfree.ui.RectangleEdge;
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32 import org.jfree.ui.RectangleInsets;
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33
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34 /**
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35 * @author Ingo Weinzierl (ingo.weinzierl@intevation.de)
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36 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de)
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37 */
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38 public class VerticalCrossSectionChart
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39 implements Chart
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40 {
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41 public static final class PalettePaintLookup
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42 implements PolygonRenderer.PaintLookup
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43 {
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44 private Palette palette;
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45
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46 public PalettePaintLookup(Palette palette) {
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47 this.palette = palette;
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48 }
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49
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50 public Paint getPaint(int index) {
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51 return index < 0
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52 ? Color.black
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53 : palette.getColor(index);
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54 }
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55 } // class PalettePaintLookup
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56
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57 protected JFreeChart chart;
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58
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59 protected AttributedXYColumns columns;
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60 protected Palette palette;
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61 protected Locale locale;
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62
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63 public VerticalCrossSectionChart() {
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64 }
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65
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66 public VerticalCrossSectionChart(
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67 AttributedXYColumns columns,
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68 Palette palette,
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69 Locale locale
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70 ) {
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71 this.columns = columns;
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72 this.palette = palette;
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73 this.locale = locale;
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74 }
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75
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76 protected JFreeChart createChart() {
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77
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78 String title = "Neues 2D-Diagramm";
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79 String xAxis = "x-Achse des Diagramms";
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80 String yAxis = "y-Achse des Diagramms";
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81 boolean legendB = false;
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82 boolean tooltips = false;
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83 boolean urls = false;
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84
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85 PlotOrientation po = PlotOrientation.HORIZONTAL;
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86 PolygonDataset data = columns.getPolygonDataset();
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87
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88 HashSet<Integer> usedColors = new HashSet<Integer>();
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89
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90 for (int i = data.getSeriesCount()-1; i >= 0; --i) {
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91 PolygonSeries ps = data.getSeries(i);
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92 Integer fill = (Integer)ps.getAttribute("fill");
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93 if (fill != null) {
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94 usedColors.add(fill);
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95 }
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96 }
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97
446
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98 PolygonRenderer renderer = new PolygonRenderer(
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99 new PalettePaintLookup(palette));
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100
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101 ValueAxis domainAxis = new NumberAxis(xAxis);
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102 ValueAxis rangeAxis = new NumberAxis(yAxis);
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103
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104 PolygonPlot plot = new PolygonPlot(
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105 data,
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106 renderer,
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107 domainAxis,
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108 rangeAxis,
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109 null);
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110
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111 String [] labels = new String[usedColors.size()];
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112
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113 int colors = palette.getSize();
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114 LookupPaintScale lookupPaint =
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115 new LookupPaintScale(-0.5d, labels.length-0.5d, Color.white);
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116
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117 Color color = null;
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118
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119 for (int i = 0, j = labels.length-1; i < colors && j >= 0; i++) {
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120 if (usedColors.contains(i)) {
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121 Palette.Entry entry = palette.getEntryByIndex(i);
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122 color = entry.getColor();
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123 labels[j] = entry.getDescription();
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124 lookupPaint.add(j-0.5d, color);
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125 --j;
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126 }
446
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127 }
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128
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129 JFreeChart chart = new JFreeChart(
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130 title,
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131 JFreeChart.DEFAULT_TITLE_FONT,
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132 plot,
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133 legendB);
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134
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135 chart.removeLegend();
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136
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137 SymbolAxis scale = new SymbolAxis("Temperatur", labels);
449
c7ca2fce041f Add only color to scale of vertical cross section which are in the chart.
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138 scale.setRange(-1.5d, labels.length+0.5d);
446
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139 scale.setGridBandsVisible(false);
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140 scale.setPlot(plot);
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141
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142 PaintScaleLegend legend = new PaintScaleLegend(
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143 lookupPaint, scale);
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144 legend.setMargin(new RectangleInsets(3d, 10d, 3d, 10d));
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145 legend.setPosition(RectangleEdge.LEFT);
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146 legend.setAxisOffset(5d);
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147
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148 chart.addSubtitle(legend);
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149
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150 return chart;
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151 }
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152
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153 public JFreeChart generateChart() {
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154 if (chart == null) {
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155 chart = createChart();
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156 }
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157 return chart;
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158 }
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159 }
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160 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org