Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/VerticalCrossSectionChart.java @ 1030:c07d9f9a738c

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Removed bugs that existed in the caching mechanism (issue264, issue268). gnv-artifacts/trunk@1067 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 06 May 2010 08:32:56 +0000
parents 31f63a14a2c3
children f953c9a559d8
rev   line source
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1 package de.intevation.gnv.chart;
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2
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3 import de.intevation.gnv.jfreechart.PolygonDataset;
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4 import de.intevation.gnv.jfreechart.PolygonPlot;
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5 import de.intevation.gnv.jfreechart.PolygonRenderer;
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6 import de.intevation.gnv.jfreechart.PolygonSeries;
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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.raster.Palette;
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11
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12 import java.awt.Color;
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13 import java.awt.Paint;
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15 import java.text.NumberFormat;
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17 import java.util.HashSet;
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18 import java.util.Locale;
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19 import java.util.Map;
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20
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21 import org.jfree.chart.JFreeChart;
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23 import org.jfree.chart.axis.NumberAxis;
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24 import org.jfree.chart.axis.SymbolAxis;
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25 import org.jfree.chart.axis.ValueAxis;
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27 import org.jfree.chart.plot.PlotOrientation;
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29 import org.jfree.chart.renderer.LookupPaintScale;
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30
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31 import org.jfree.chart.title.PaintScaleLegend;
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32 import org.jfree.chart.title.TextTitle;
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33
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34 import org.jfree.data.Range;
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36 import org.jfree.ui.RectangleEdge;
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37 import org.jfree.ui.RectangleInsets;
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38
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39 /**
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40 * This class represents a 2D chart containing polygon data.
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41 *
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42 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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43 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
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44 */
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45 public class VerticalCrossSectionChart
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46 implements Chart
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47 {
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48 /**
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49 * Lookup class for retrieving a color which corresponds to a specific
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50 * integer value.
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51 */
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52 public static final class PalettePaintLookup
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53 implements PolygonRenderer.PaintLookup
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54 {
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55 /**
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56 * Object storing information about value ranges and its coresponding
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57 * colors and descriptions.
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58 */
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59 private Palette palette;
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60
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61 /**
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62 * Map containing some special <code>Paint</code> like ground fillcolor.
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63 */
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64 private Map<Integer, Paint> special;
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66 /**
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67 * Constructor
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68 *
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69 * @param palette See {@link #palette}
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70 */
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71 public PalettePaintLookup(Palette palette) {
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72 this(palette, null);
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73 }
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74
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75 /**
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76 * Constructor
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77 *
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78 * @param palette See {@link #palette}
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79 * @param special See {@link #special}
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80 */
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81 public PalettePaintLookup(
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82 Palette palette,
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83 Map<Integer, Paint> special
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84 ) {
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85 this.palette = palette;
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86 this.special = special;
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87 }
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88
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89 /**
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90 * @param index Index of a <code>Paint</code>
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91 *
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92 * @return <code>Paint</code> object for a given index.
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93 */
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94 public Paint getPaint(int index) {
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95 if (special != null) {
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96 Paint paint = special.get(index);
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97 if (paint != null) {
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98 return paint;
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99 }
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100 }
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101 return index < 0
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102 ? Color.black
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103 : palette.getColor(index);
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104 }
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105 } // class PalettePaintLookup
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106
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107 /**
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108 * This class is used to turn labels which represent a number into a
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109 * specific format.
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110 */
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111 public static class LocalizedLabelGenerator
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112 extends PolygonRenderer.DefaultLabelGenerator
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113 {
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114 /**
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115 * <code>NumberFormat</code> which is used to turn a number into a
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116 * specific format.
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117 */
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118 protected NumberFormat format;
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119
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120 /**
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121 * Constructor
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122 */
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123 public LocalizedLabelGenerator() {
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124 }
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125
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126 /**
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127 * Constructor
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128 *
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129 * @param format See {@link #format}
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130 */
450
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131 public LocalizedLabelGenerator(NumberFormat format) {
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132 this.format = format;
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133 }
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134
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135 /**
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136 * If label is a <code>Number</code>, it is turned into a format
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137 * specified by {@link #format}.
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138 *
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139 * @param label Label to format.
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140 *
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141 * @return String representation of label.
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142 */
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143 @Override
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144 protected String toString(Object label) {
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145 return label instanceof Number
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146 ? format.format(((Number)label).doubleValue())
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147 : super.toString(label);
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148 }
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149 } // class LocalizedLabelGenerator
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150
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151 public static double MARGIN_TOP = 0.05d;
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152 public static double MARGIN_BOTTOM = 0.00d;
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153 public static double MARGIN_LEFT = 0.00d;
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154 public static double MARGIN_RIGHT = 0.05d;
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155
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156 /**
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157 * JFreeChart object stored at this place after chart creation.
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158 */
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159 protected JFreeChart chart;
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160
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161 /**
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162 * Stores {@link de.intevation.gnv.jfreechart.PolygonDataset} which is used
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163 * to create a vertical cross chart.
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164 */
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165 protected AttributedXYColumns columns;
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166
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167 /**
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168 * Map which contains colors to fill polygons draw by this chart.
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169 */
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170 protected Map<Integer, Paint> special;
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171
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172 /**
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173 * Object used to map value intervals to specific colors and descriptions.
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174 */
446
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175 protected Palette palette;
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176
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177 /**
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178 * Locale object used for i18n support.
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179 */
446
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180 protected Locale locale;
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181
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182 /**
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183 * Labels for decorating the chart.
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184 */
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185 protected ChartLabels labels;
446
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186
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187 /**
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188 * Default Constructor
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189 */
446
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190 public VerticalCrossSectionChart() {
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191 }
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192
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193 /**
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194 * Constructor for VerticalCrossSectionChart creation.
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195 *
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196 * @param columns See {@link #columns}
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197 * @param palette See {@link #palette}
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198 * @param locale See {@link #locale}
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199 * @param labels See {@link #labels}
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200 */
446
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201 public VerticalCrossSectionChart(
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202 AttributedXYColumns columns,
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203 Palette palette,
492
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204 Locale locale,
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205 ChartLabels labels
446
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206 ) {
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207 this(columns, palette, null, locale, labels);
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208 }
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209
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210 /**
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211 * Constructor for VerticalCrossSectionChart creation.
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212 *
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213 * @param columns See {@link #columns}
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214 * @param palette See {@link #palette}
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215 * @param special See {@link #special}
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216 * @param locale See {@link #locale}
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217 * @param labels See {@link #labels}
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218 */
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219 public VerticalCrossSectionChart(
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220 AttributedXYColumns columns,
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221 Palette palette,
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222 Map<Integer, Paint> special,
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223 Locale locale,
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224 ChartLabels labels
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225 ) {
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226 this.columns = columns;
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227 this.palette = palette;
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228 this.special = special;
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229 this.locale = locale;
492
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230 this.labels = labels;
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231 }
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232
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233 /**
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234 * This method is used to create a JFreeChart from this object. A 2D plot is
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235 * drawn and a legend panel is created containing each value range.
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236 *
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237 * @return JFreeChart object
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238 */
446
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239 protected JFreeChart createChart() {
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240
492
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241 boolean legendB = false;
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242 boolean tooltips = false;
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243 boolean urls = false;
446
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244
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245 PlotOrientation po = PlotOrientation.HORIZONTAL;
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246 PolygonDataset data = columns.getPolygonDataset();
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247
449
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248 HashSet<Integer> usedColors = new HashSet<Integer>();
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249
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250 for (int i = data.getSeriesCount()-1; i >= 0; --i) {
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251 PolygonSeries ps = data.getSeries(i);
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252 Integer fill = (Integer)ps.getAttribute("fill");
521
1bf058f1a2d1 Generate seabed polygon to "Profilschnitte".
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diff changeset
253 if (fill != null
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diff changeset
254 && (special != null && !special.containsKey(fill))) {
449
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255 usedColors.add(fill);
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256 }
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257 }
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258
450
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diff changeset
259 NumberFormat format = NumberFormat.getInstance(locale);
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260 format.setMinimumFractionDigits(0);
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261 format.setMaximumFractionDigits(2);
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262
446
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263 PolygonRenderer renderer = new PolygonRenderer(
521
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264 new PalettePaintLookup(palette, special),
450
20a480753ff9 Render labels in vertical cross section charts.
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265 new LocalizedLabelGenerator(format));
446
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266
492
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diff changeset
267 ValueAxis domainAxis = new NumberAxis(this.labels.getDomainAxisLabel());
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parents: 450
diff changeset
268 ValueAxis rangeAxis = new NumberAxis(this.labels.getRangeAxisLabel());
446
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269
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270 PolygonPlot plot = new PolygonPlot(
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271 data,
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272 renderer,
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273 domainAxis,
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274 rangeAxis,
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275 null);
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276
534
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277 plot.setOutlinePaint(Color.WHITE);
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278
449
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279 String [] labels = new String[usedColors.size()];
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280
446
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281 int colors = palette.getSize();
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282 LookupPaintScale lookupPaint =
449
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283 new LookupPaintScale(-0.5d, labels.length-0.5d, Color.white);
446
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284
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285 Color color = null;
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286
449
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287 for (int i = 0, j = labels.length-1; i < colors && j >= 0; i++) {
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288 if (usedColors.contains(i)) {
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289 Palette.Entry entry = palette.getEntryByIndex(i);
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290 color = entry.getColor();
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291 labels[j] = entry.getDescription();
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diff changeset
292 lookupPaint.add(j-0.5d, color);
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diff changeset
293 --j;
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294 }
446
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295 }
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296
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297 JFreeChart chart = new JFreeChart(
492
79e80c289018 Added labels and titles to 'Profilschnitt' charts.
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diff changeset
298 this.labels.getTitle(),
446
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299 JFreeChart.DEFAULT_TITLE_FONT,
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diff changeset
300 plot,
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diff changeset
301 legendB);
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302
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303 chart.removeLegend();
492
79e80c289018 Added labels and titles to 'Profilschnitt' charts.
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parents: 450
diff changeset
304 chart.addSubtitle(new TextTitle(this.labels.getSubtitle()));
446
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305
492
79e80c289018 Added labels and titles to 'Profilschnitt' charts.
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diff changeset
306 SymbolAxis scale = new SymbolAxis(this.labels.getParameterName(), labels);
449
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diff changeset
307 scale.setRange(-1.5d, labels.length+0.5d);
446
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308 scale.setGridBandsVisible(false);
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diff changeset
309 scale.setPlot(plot);
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diff changeset
310
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diff changeset
311 PaintScaleLegend legend = new PaintScaleLegend(
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312 lookupPaint, scale);
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diff changeset
313 legend.setMargin(new RectangleInsets(3d, 10d, 3d, 10d));
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314 legend.setPosition(RectangleEdge.LEFT);
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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diff changeset
315 legend.setAxisOffset(5d);
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parents:
diff changeset
316
f5a041000357 Connected vertical cross section with chart generation.
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diff changeset
317 chart.addSubtitle(legend);
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parents:
diff changeset
318
841
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
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parents: 817
diff changeset
319 // XXX Workaround, because Axes labels are cut at the
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
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diff changeset
320 // left/right/top/bottom edge. The following lines add a white border
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
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parents: 817
diff changeset
321 // between data area and plot border.
842
31f63a14a2c3 Improved the workaround of rev955: There is no gap between the left & bottom border and data area anymore (issue163).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 841
diff changeset
322 // see http://www.jfree.org/phpBB2/viewtopic.php?f=3&t=22177&start=0&hilit=axis+labels+cut
841
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
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parents: 817
diff changeset
323 ValueAxis xAxis = plot.getDomainAxis();
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
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parents: 817
diff changeset
324 Range xRange = xAxis.getRange();
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
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parents: 817
diff changeset
325 xRange = Range.expand(xRange, MARGIN_LEFT, MARGIN_RIGHT);
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
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parents: 817
diff changeset
326 xAxis.setRange(xRange);
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
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parents: 817
diff changeset
327 plot.setDomainAxis(xAxis);
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 817
diff changeset
328
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 817
diff changeset
329 ValueAxis yAxis = plot.getRangeAxis();
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 817
diff changeset
330 Range yRange = yAxis.getRange();
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 817
diff changeset
331 yRange = Range.expand(yRange, MARGIN_BOTTOM, MARGIN_TOP);
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 817
diff changeset
332 yAxis.setRange(yRange);
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 817
diff changeset
333 plot.setRangeAxis(yAxis);
9cbc8343a04d Implemented a workaround to avoid an amount of cut axis labels in 2D charts (issue163).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 817
diff changeset
334
842
31f63a14a2c3 Improved the workaround of rev955: There is no gap between the left & bottom border and data area anymore (issue163).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 841
diff changeset
335 chart.setPadding(new RectangleInsets(10d, 10d, 10d, 10d));
31f63a14a2c3 Improved the workaround of rev955: There is no gap between the left & bottom border and data area anymore (issue163).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 841
diff changeset
336
446
f5a041000357 Connected vertical cross section with chart generation.
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diff changeset
337 return chart;
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parents:
diff changeset
338 }
f5a041000357 Connected vertical cross section with chart generation.
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parents:
diff changeset
339
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 534
diff changeset
340 /**
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
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parents: 534
diff changeset
341 * @see de.intevation.gnv.chart.Chart#generateChart()
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
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parents: 534
diff changeset
342 */
446
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diff changeset
343 public JFreeChart generateChart() {
f5a041000357 Connected vertical cross section with chart generation.
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parents:
diff changeset
344 if (chart == null) {
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diff changeset
345 chart = createChart();
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parents:
diff changeset
346 }
527
f598702b2a10 Fixed issue157: Verticalcrosssection charts have a white background as all other chart types have.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 521
diff changeset
347
446
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parents:
diff changeset
348 return chart;
f5a041000357 Connected vertical cross section with chart generation.
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parents:
diff changeset
349 }
527
f598702b2a10 Fixed issue157: Verticalcrosssection charts have a white background as all other chart types have.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 521
diff changeset
350
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 534
diff changeset
351 /**
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 534
diff changeset
352 * Set the background paint of {@link #chart}.
803
feae2f9d6c6f Removed trailing whitespace.
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parents: 788
diff changeset
353 * @param paint
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
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parents: 534
diff changeset
354 */
527
f598702b2a10 Fixed issue157: Verticalcrosssection charts have a white background as all other chart types have.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 521
diff changeset
355 public void setBackgroundPaint(Paint paint) {
f598702b2a10 Fixed issue157: Verticalcrosssection charts have a white background as all other chart types have.
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parents: 521
diff changeset
356 chart.setBackgroundPaint(paint);
f598702b2a10 Fixed issue157: Verticalcrosssection charts have a white background as all other chart types have.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 521
diff changeset
357 }
446
f5a041000357 Connected vertical cross section with chart generation.
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parents:
diff changeset
358 }
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parents:
diff changeset
359 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org