Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/exports/EnhancedLineAndShapeRenderer.java @ 2072:4cdd9c4896f6
#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
flys-artifacts/trunk@3581 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 04 Jan 2012 12:24:35 +0000 |
parents | |
children | 27ada2e4243d |
rev | line source |
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2072
4cdd9c4896f6
#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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changeset
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1 package de.intevation.flys.exports; |
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2 |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
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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 |
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7 import org.apache.log4j.Logger; |
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8 |
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9 import org.jfree.chart.axis.ValueAxis; |
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10 import org.jfree.chart.entity.EntityCollection; |
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11 import org.jfree.chart.plot.CrosshairState; |
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12 import org.jfree.chart.plot.PlotOrientation; |
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13 import org.jfree.chart.plot.XYPlot; |
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14 import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; |
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15 import org.jfree.data.xy.XYDataset; |
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16 import org.jfree.ui.RectangleEdge; |
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17 import org.jfree.util.BooleanList; |
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18 import org.jfree.util.ShapeUtilities; |
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19 |
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20 |
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21 public class EnhancedLineAndShapeRenderer extends XYLineAndShapeRenderer { |
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22 |
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23 private static final Logger logger = |
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24 Logger.getLogger(EnhancedLineAndShapeRenderer.class); |
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25 |
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26 protected BooleanList isMinimumShapeVisible; |
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27 protected BooleanList isMaximumShapeVisible; |
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28 |
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29 |
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30 public EnhancedLineAndShapeRenderer(boolean lines, boolean shapes) { |
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31 super(lines, shapes); |
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32 this.isMinimumShapeVisible = new BooleanList(); |
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33 this.isMaximumShapeVisible = new BooleanList(); |
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34 } |
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35 |
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36 |
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37 public boolean getItemShapeVisible(XYDataset dataset, int series, int item){ |
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38 if (super.getItemShapeVisible(series, item)) { |
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39 logger.debug("Items are visible."); |
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40 return true; |
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41 } |
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42 |
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43 if (isMinimumShapeVisible(series) && isMinimum(dataset, series, item)) { |
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44 logger.debug("Minimum is visible for series: " + series); |
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45 return true; |
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46 } |
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47 |
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48 if (isMaximumShapeVisible(series) && isMaximum(dataset, series, item)) { |
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49 logger.debug("Maximum is visible for series: " + series); |
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50 return true; |
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51 } |
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52 |
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53 logger.debug("Nothing is visible at all."); |
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54 |
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55 return false; |
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56 } |
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57 |
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58 |
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59 /** |
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60 * Overrides XYLineAndShapeRenderer.drawSecondaryPass() to call an adapted |
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61 * method getItemShapeVisible() which now takes an XYDataset. So, 99% of |
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62 * code equal the code in XYLineAndShapeRenderer. |
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63 */ |
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64 @Override |
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65 protected void drawSecondaryPass( |
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66 Graphics2D g2, |
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67 XYPlot plot, |
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68 XYDataset dataset, |
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69 int pass, |
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70 int series, |
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71 int item, |
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72 ValueAxis domainAxis, |
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73 Rectangle2D dataArea, |
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74 ValueAxis rangeAxis, |
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75 CrosshairState crosshairState, |
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76 EntityCollection entities |
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77 ) { |
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78 logger.debug("Draw secondary pass"); |
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79 Shape entityArea = null; |
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80 |
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81 // get the data point... |
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82 double x1 = dataset.getXValue(series, item); |
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83 double y1 = dataset.getYValue(series, item); |
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84 if (Double.isNaN(y1) || Double.isNaN(x1)) { |
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85 return; |
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86 } |
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87 |
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88 PlotOrientation orientation = plot.getOrientation(); |
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89 RectangleEdge xAxisLocation = plot.getDomainAxisEdge(); |
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90 RectangleEdge yAxisLocation = plot.getRangeAxisEdge(); |
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91 double transX1 = domainAxis.valueToJava2D(x1, dataArea, xAxisLocation); |
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92 double transY1 = rangeAxis.valueToJava2D(y1, dataArea, yAxisLocation); |
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93 |
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94 if (getItemShapeVisible(dataset, series, item)) { |
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95 Shape shape = getItemShape(series, item); |
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96 if (orientation == PlotOrientation.HORIZONTAL) { |
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97 shape = ShapeUtilities.createTranslatedShape(shape, transY1, |
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98 transX1); |
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99 } |
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100 else if (orientation == PlotOrientation.VERTICAL) { |
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101 shape = ShapeUtilities.createTranslatedShape(shape, transX1, |
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102 transY1); |
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103 } |
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104 entityArea = shape; |
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105 if (shape.intersects(dataArea)) { |
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106 if (getItemShapeFilled(series, item)) { |
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107 if (getUseFillPaint()) { |
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108 g2.setPaint(getItemFillPaint(series, item)); |
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109 } |
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110 else { |
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111 g2.setPaint(getItemPaint(series, item)); |
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112 } |
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113 g2.fill(shape); |
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114 } |
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115 if (getDrawOutlines()) { |
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116 if (getUseOutlinePaint()) { |
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117 g2.setPaint(getItemOutlinePaint(series, item)); |
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118 } |
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119 else { |
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120 g2.setPaint(getItemPaint(series, item)); |
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121 } |
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122 g2.setStroke(getItemOutlineStroke(series, item)); |
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123 g2.draw(shape); |
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124 } |
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125 } |
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126 } |
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127 |
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128 double xx = transX1; |
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129 double yy = transY1; |
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130 if (orientation == PlotOrientation.HORIZONTAL) { |
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131 xx = transY1; |
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132 yy = transX1; |
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133 } |
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134 |
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135 // draw the item label if there is one... |
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136 if (isItemLabelVisible(series, item)) { |
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137 drawItemLabel(g2, orientation, dataset, series, item, xx, yy, |
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138 (y1 < 0.0)); |
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139 } |
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140 |
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141 int domainAxisIndex = plot.getDomainAxisIndex(domainAxis); |
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142 int rangeAxisIndex = plot.getRangeAxisIndex(rangeAxis); |
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143 updateCrosshairValues(crosshairState, x1, y1, domainAxisIndex, |
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144 rangeAxisIndex, transX1, transY1, orientation); |
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145 |
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146 // add an entity for the item, but only if it falls within the data |
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147 // area... |
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148 if (entities != null && isPointInRect(dataArea, xx, yy)) { |
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149 addEntity(entities, entityArea, dataset, series, item, xx, yy); |
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150 } |
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151 } |
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152 |
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153 |
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154 public void setIsMinimumShapeVisisble(int series, boolean isVisible) { |
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155 this.isMinimumShapeVisible.setBoolean(series, isVisible); |
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156 } |
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157 |
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158 |
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159 public boolean isMinimumShapeVisible(int series) { |
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160 return isMinimumShapeVisible.getBoolean(series); |
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161 } |
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162 |
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163 |
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164 public void setIsMaximumShapeVisible(int series, boolean isVisible) { |
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165 this.isMaximumShapeVisible.setBoolean(series, isVisible); |
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166 } |
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167 |
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168 |
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169 public boolean isMaximumShapeVisible(int series) { |
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170 return isMaximumShapeVisible.getBoolean(series); |
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171 } |
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172 |
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173 |
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174 public static boolean isMinimum(XYDataset dataset, int series, int item) { |
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175 return dataset.getYValue(series, item) == getMinimum(dataset, series); |
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176 } |
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177 |
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178 |
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179 public static double getMinimum(XYDataset dataset, int series) { |
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180 double min = Double.MAX_VALUE; |
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181 |
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182 for (int i = 0, n = dataset.getItemCount(series); i < n; i++) { |
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183 double tmpValue = dataset.getYValue(series, i); |
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184 |
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185 if (tmpValue < min) { |
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186 min = tmpValue; |
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187 } |
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188 } |
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189 |
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190 return min; |
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191 } |
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192 |
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193 |
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194 public static boolean isMaximum(XYDataset dataset, int series, int item) { |
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195 return dataset.getYValue(series, item) == getMaximum(dataset, series); |
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196 } |
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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197 |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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198 |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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199 public static double getMaximum(XYDataset dataset, int series) { |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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200 double max = -Double.MAX_VALUE; |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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201 |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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202 for (int i = 0, n = dataset.getItemCount(series); i < n; i++) { |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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203 double tmpValue = dataset.getYValue(series, i); |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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204 |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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205 if (tmpValue > max) { |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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206 max = tmpValue; |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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207 } |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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208 } |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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209 |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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210 return max; |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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211 } |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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212 } |
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#393 Added a new Renderer and Options in Themes that allow displaying minimum and maximum of a chart series.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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213 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |