Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/jfree/EnhancedLineAndShapeRenderer.java @ 2089:0da8874bd378

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Added initial state to map artifact to be able to advance and step back. The map artifact overrides describe() to have the complete UI information in the describe response document. flys-artifacts/trunk@3613 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Raimund Renkert <raimund.renkert@intevation.de>
date Fri, 06 Jan 2012 12:02:10 +0000
parents f42b0e624e97
children 2b232871ba28
rev   line source
2074
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
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parents:
diff changeset
1 package de.intevation.flys.jfree;
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2
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
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3 import java.awt.Graphics2D;
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4 import java.awt.Shape;
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5 import java.awt.geom.Rectangle2D;
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6 import java.util.HashMap;
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7 import java.util.Map;
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8
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9 import org.apache.log4j.Logger;
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10
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11 import org.jfree.chart.axis.ValueAxis;
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12 import org.jfree.chart.entity.EntityCollection;
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13 import org.jfree.chart.plot.CrosshairState;
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14 import org.jfree.chart.plot.PlotOrientation;
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15 import org.jfree.chart.plot.XYPlot;
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16 import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
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17 import org.jfree.data.xy.XYDataset;
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18 import org.jfree.ui.RectangleEdge;
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19 import org.jfree.util.BooleanList;
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20 import org.jfree.util.ShapeUtilities;
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21
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22
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23 public class EnhancedLineAndShapeRenderer extends XYLineAndShapeRenderer {
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24
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25 private static final Logger logger =
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26 Logger.getLogger(EnhancedLineAndShapeRenderer.class);
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27
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28 protected BooleanList isMinimumShapeVisible;
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29 protected BooleanList isMaximumShapeVisible;
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30
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31 protected Map<Integer, Double> seriesMinimum;
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32 protected Map<Integer, Double> seriesMaximum;
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33
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34
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35 public EnhancedLineAndShapeRenderer(boolean lines, boolean shapes) {
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36 super(lines, shapes);
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37 this.isMinimumShapeVisible = new BooleanList();
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38 this.isMaximumShapeVisible = new BooleanList();
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39 this.seriesMinimum = new HashMap<Integer, Double>();
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
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40 this.seriesMaximum = new HashMap<Integer, Double>();
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41 }
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42
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43
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
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44 public boolean getItemShapeVisible(XYDataset dataset, int series, int item){
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45 if (super.getItemShapeVisible(series, item)) {
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46 return true;
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47 }
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48
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49 if (isMinimumShapeVisible(series) && isMinimum(dataset, series, item)) {
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50 return true;
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51 }
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52
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53 if (isMaximumShapeVisible(series) && isMaximum(dataset, series, item)) {
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
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54 return true;
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55 }
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56
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
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57 return false;
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58 }
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59
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
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60
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
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61 /**
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62 * Overrides XYLineAndShapeRenderer.drawSecondaryPass() to call an adapted
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63 * method getItemShapeVisible() which now takes an XYDataset. So, 99% of
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64 * code equal the code in XYLineAndShapeRenderer.
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65 */
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66 @Override
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67 protected void drawSecondaryPass(
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68 Graphics2D g2,
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69 XYPlot plot,
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70 XYDataset dataset,
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71 int pass,
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72 int series,
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73 int item,
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74 ValueAxis domainAxis,
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75 Rectangle2D dataArea,
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76 ValueAxis rangeAxis,
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77 CrosshairState crosshairState,
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78 EntityCollection entities
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79 ) {
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80 Shape entityArea = null;
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81
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82 // get the data point...
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83 double x1 = dataset.getXValue(series, item);
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84 double y1 = dataset.getYValue(series, item);
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85 if (Double.isNaN(y1) || Double.isNaN(x1)) {
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86 return;
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87 }
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88
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89 PlotOrientation orientation = plot.getOrientation();
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90 RectangleEdge xAxisLocation = plot.getDomainAxisEdge();
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91 RectangleEdge yAxisLocation = plot.getRangeAxisEdge();
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92 double transX1 = domainAxis.valueToJava2D(x1, dataArea, xAxisLocation);
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93 double transY1 = rangeAxis.valueToJava2D(y1, dataArea, yAxisLocation);
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94
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95 if (getItemShapeVisible(dataset, series, item)) {
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96 Shape shape = getItemShape(series, item);
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97 if (orientation == PlotOrientation.HORIZONTAL) {
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98 shape = ShapeUtilities.createTranslatedShape(shape, transY1,
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99 transX1);
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100 }
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101 else if (orientation == PlotOrientation.VERTICAL) {
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102 shape = ShapeUtilities.createTranslatedShape(shape, transX1,
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103 transY1);
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104 }
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105 entityArea = shape;
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106 if (shape.intersects(dataArea)) {
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107 if (getItemShapeFilled(series, item)) {
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108 if (getUseFillPaint()) {
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109 g2.setPaint(getItemFillPaint(series, item));
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110 }
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111 else {
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112 g2.setPaint(getItemPaint(series, item));
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113 }
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114 g2.fill(shape);
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115 }
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116 if (getDrawOutlines()) {
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117 if (getUseOutlinePaint()) {
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118 g2.setPaint(getItemOutlinePaint(series, item));
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119 }
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120 else {
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121 g2.setPaint(getItemPaint(series, item));
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122 }
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123 g2.setStroke(getItemOutlineStroke(series, item));
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124 g2.draw(shape);
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125 }
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126 }
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127 }
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128
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129 double xx = transX1;
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130 double yy = transY1;
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131 if (orientation == PlotOrientation.HORIZONTAL) {
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132 xx = transY1;
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133 yy = transX1;
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134 }
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135
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136 // draw the item label if there is one...
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137 if (isItemLabelVisible(series, item)) {
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138 drawItemLabel(g2, orientation, dataset, series, item, xx, yy,
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139 (y1 < 0.0));
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140 }
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141
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142 int domainAxisIndex = plot.getDomainAxisIndex(domainAxis);
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143 int rangeAxisIndex = plot.getRangeAxisIndex(rangeAxis);
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144 updateCrosshairValues(crosshairState, x1, y1, domainAxisIndex,
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145 rangeAxisIndex, transX1, transY1, orientation);
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146
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147 // add an entity for the item, but only if it falls within the data
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148 // area...
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149 if (entities != null && isPointInRect(dataArea, xx, yy)) {
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150 addEntity(entities, entityArea, dataset, series, item, xx, yy);
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151 }
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152 }
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153
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154
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155 public void setIsMinimumShapeVisisble(int series, boolean isVisible) {
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156 this.isMinimumShapeVisible.setBoolean(series, isVisible);
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157 }
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158
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159
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160 public boolean isMinimumShapeVisible(int series) {
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161 return isMinimumShapeVisible.getBoolean(series);
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162 }
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163
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164
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165 public void setIsMaximumShapeVisible(int series, boolean isVisible) {
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166 this.isMaximumShapeVisible.setBoolean(series, isVisible);
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167 }
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168
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169
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170 public boolean isMaximumShapeVisible(int series) {
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171 return isMaximumShapeVisible.getBoolean(series);
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172 }
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173
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174
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175 public boolean isMinimum(XYDataset dataset, int series, int item) {
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176 return dataset.getYValue(series, item) == getMinimum(dataset, series);
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177 }
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178
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179
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180 public double getMinimum(XYDataset dataset, int series) {
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181 Integer key = Integer.valueOf(series);
2075
f42b0e624e97 Small bugfix: use correct keys for buffering min/max values in EnhancedLineAndShapeRenderer.
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parents: 2074
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182 Double old = seriesMinimum.get(key);
2074
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183
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184 if (old != null) {
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185 return old.doubleValue();
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186 }
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187
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188 logger.debug("Compute minimum of Series: " + series);
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189
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190 double min = Double.MAX_VALUE;
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191
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192 for (int i = 0, n = dataset.getItemCount(series); i < n; i++) {
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193 double tmpValue = dataset.getYValue(series, i);
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194
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195 if (tmpValue < min) {
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196 min = tmpValue;
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197 }
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198 }
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199
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diff changeset
200 seriesMinimum.put(key, Double.valueOf(min));
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201
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202 return min;
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203 }
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204
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205
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206 public boolean isMaximum(XYDataset dataset, int series, int item) {
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207 return dataset.getYValue(series, item) == getMaximum(dataset, series);
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208 }
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209
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210
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211 public double getMaximum(XYDataset dataset, int series) {
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212 Integer key = Integer.valueOf(series);
2075
f42b0e624e97 Small bugfix: use correct keys for buffering min/max values in EnhancedLineAndShapeRenderer.
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parents: 2074
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213 Double old = seriesMaximum.get(key);
2074
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214
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215 if (old != null) {
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216 return old.doubleValue();
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217 }
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218
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219 logger.debug("Compute maximum of Series: " + series);
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220
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diff changeset
221 double max = -Double.MAX_VALUE;
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222
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223 for (int i = 0, n = dataset.getItemCount(series); i < n; i++) {
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224 double tmpValue = dataset.getYValue(series, i);
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225
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diff changeset
226 if (tmpValue > max) {
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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227 max = tmpValue;
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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228 }
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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229 }
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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230
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
231 seriesMaximum.put(key, Double.valueOf(max));
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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232
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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233 return max;
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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234 }
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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235 }
a026d005accd Moved JFreeChart specific classes to de.intevation.flys.jfree and added required imports.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
236 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org