Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/jfree/EnhancedLineAndShapeRenderer.java @ 2647:4b7a28e81643
Cosmetics, doc.
flys-artifacts/trunk@4302 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Thu, 26 Apr 2012 08:11:48 +0000 |
parents | 0a84313efe60 |
children | 8aaa7f4ce06a |
rev | line source |
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1 package de.intevation.flys.jfree; |
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2 |
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3 import java.awt.Color; |
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4 import java.awt.Graphics2D; |
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5 import java.awt.Paint; |
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6 import java.awt.Shape; |
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7 import java.awt.geom.Rectangle2D; |
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8 import java.util.HashMap; |
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9 import java.util.Map; |
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10 |
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11 import org.apache.log4j.Logger; |
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12 |
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13 import org.jfree.chart.axis.ValueAxis; |
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14 import org.jfree.chart.entity.EntityCollection; |
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15 import org.jfree.chart.plot.CrosshairState; |
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16 import org.jfree.chart.plot.PlotOrientation; |
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17 import org.jfree.chart.plot.XYPlot; |
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18 import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; |
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19 import org.jfree.data.xy.XYDataset; |
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20 import org.jfree.ui.RectangleEdge; |
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21 import org.jfree.util.BooleanList; |
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22 import org.jfree.util.ShapeUtilities; |
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23 |
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24 /** |
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25 * Renderer with additional the additional functionality of renderering minima |
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26 * and/or maxima of dataseries contained in datasets. |
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27 */ |
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28 public class EnhancedLineAndShapeRenderer extends XYLineAndShapeRenderer { |
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29 |
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30 /** Own logger. */ |
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31 private static final Logger logger = |
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32 Logger.getLogger(EnhancedLineAndShapeRenderer.class); |
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33 |
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34 protected BooleanList isMinimumShapeVisible; |
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parents:
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35 protected BooleanList isMaximumShapeVisible; |
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36 protected BooleanList showSeriesMinimumX;; |
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37 |
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parents:
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38 protected Map<Integer, Double> seriesMinimum; |
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39 protected Map<Integer, Double> seriesMinimumX; |
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parents:
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40 protected Map<Integer, Double> seriesMaximum; |
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parents:
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41 |
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parents:
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42 |
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43 public EnhancedLineAndShapeRenderer(boolean lines, boolean shapes) { |
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44 super(lines, shapes); |
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45 this.isMinimumShapeVisible = new BooleanList(); |
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parents:
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46 this.isMaximumShapeVisible = new BooleanList(); |
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parents:
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47 this.seriesMinimum = new HashMap<Integer, Double>(); |
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parents:
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48 this.seriesMaximum = new HashMap<Integer, Double>(); |
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Stub for labeling dataseries in EnhancedLineAndShapeRenerer.
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parents:
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49 this.seriesMinimumX = new HashMap<Integer, Double>(); |
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50 } |
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51 |
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parents:
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52 |
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53 public boolean getItemShapeVisible(XYDataset dataset, int series, int item){ |
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54 if (super.getItemShapeVisible(series, item)) { |
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55 return true; |
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56 } |
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57 |
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58 if (isMinimumShapeVisible(series) && isMinimum(dataset, series, item)) { |
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59 return true; |
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60 } |
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61 |
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62 if (isMaximumShapeVisible(series) && isMaximum(dataset, series, item)) { |
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63 return true; |
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64 } |
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65 |
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66 return false; |
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67 } |
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68 |
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69 |
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70 public Shape getMaximumShape(int series, int column) { |
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71 return new Rectangle2D.Double(-5d, -5d, 10d, 10d); |
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72 } |
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parents:
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73 |
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74 |
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75 public Shape getMinimumShape(int series, int column) { |
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76 return new Rectangle2D.Double(-5d, -5d, 10d, 10d); |
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77 } |
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parents:
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78 |
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parents:
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79 |
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80 public Paint getMaximumFillPaint(int series, int column) { |
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81 Paint p = getItemPaint(series, column); |
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82 |
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83 if (p instanceof Color) { |
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84 Color c = (Color) p; |
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85 Color b = c; |
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86 |
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87 for (int i = 0; i < 2; i++) { |
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88 b = b.darker(); |
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89 } |
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90 |
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91 return b; |
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92 } |
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93 |
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94 logger.warn("Item paint is no instance of Color!"); |
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95 return p; |
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96 } |
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97 |
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98 |
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99 public Paint getMinimumFillPaint(int series, int column) { |
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100 Paint p = getItemPaint(series, column); |
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101 |
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102 if (p instanceof Color) { |
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103 Color c = (Color) p; |
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104 Color b = c; |
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105 |
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106 for (int i = 0; i < 2; i++) { |
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107 b = b.darker(); |
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108 } |
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109 |
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110 return b; |
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111 } |
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112 |
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113 logger.warn("Item paint is no instance of Color!"); |
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114 return p; |
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115 } |
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116 |
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117 |
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118 /** |
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119 * Overrides XYLineAndShapeRenderer.drawSecondaryPass() to call an adapted |
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120 * method getItemShapeVisible() which now takes an XYDataset. So, 99% of |
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121 * code equal the code in XYLineAndShapeRenderer. |
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122 */ |
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123 @Override |
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124 protected void drawSecondaryPass( |
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125 Graphics2D g2, |
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126 XYPlot plot, |
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127 XYDataset dataset, |
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128 int pass, |
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129 int series, |
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130 int item, |
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131 ValueAxis domainAxis, |
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132 Rectangle2D dataArea, |
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133 ValueAxis rangeAxis, |
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134 CrosshairState crosshairState, |
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135 EntityCollection entities |
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136 ) { |
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137 Shape entityArea = null; |
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138 |
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139 // get the data point... |
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140 double x1 = dataset.getXValue(series, item); |
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141 double y1 = dataset.getYValue(series, item); |
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142 if (Double.isNaN(y1) || Double.isNaN(x1)) { |
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143 return; |
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144 } |
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145 |
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146 PlotOrientation orientation = plot.getOrientation(); |
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147 RectangleEdge xAxisLocation = plot.getDomainAxisEdge(); |
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148 RectangleEdge yAxisLocation = plot.getRangeAxisEdge(); |
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149 double transX1 = domainAxis.valueToJava2D(x1, dataArea, xAxisLocation); |
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150 double transY1 = rangeAxis.valueToJava2D(y1, dataArea, yAxisLocation); |
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151 |
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152 if (getItemShapeVisible(dataset, series, item)) { |
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153 Shape shape = null; |
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154 |
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155 // OPTIMIZE: instead of calculating minimum and maximum for every |
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156 // point, calculate it just once (assume that dataset |
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157 // content does not change during rendering). |
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158 // NOTE: Above OPTIMIZE might already be fulfilled to most extend. |
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159 boolean isMinimum = isMinimumShapeVisible(series) |
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160 && isMinimum(dataset, series, item); |
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161 |
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162 boolean isMaximum = isMaximumShapeVisible(series) |
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163 && isMaximum(dataset, series, item); |
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164 |
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165 if (isMinimum) { |
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166 logger.debug("Create a Minimum shape."); |
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167 shape = getMinimumShape(series, item); |
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168 } |
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169 else if (isMaximum) { |
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170 logger.debug("Create a Maximum shape."); |
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171 shape = getMaximumShape(series, item); |
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172 } |
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173 else { |
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174 shape = getItemShape(series, item); |
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175 } |
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176 |
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177 if (orientation == PlotOrientation.HORIZONTAL) { |
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178 shape = ShapeUtilities.createTranslatedShape(shape, transY1, |
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179 transX1); |
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180 } |
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181 else if (orientation == PlotOrientation.VERTICAL) { |
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182 shape = ShapeUtilities.createTranslatedShape(shape, transX1, |
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183 transY1); |
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184 } |
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185 entityArea = shape; |
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186 if (shape.intersects(dataArea)) { |
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187 if (getItemShapeFilled(series, item)) { |
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188 if (getUseFillPaint()) { |
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189 g2.setPaint(getItemFillPaint(series, item)); |
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190 } |
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191 else { |
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192 g2.setPaint(getItemPaint(series, item)); |
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193 } |
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194 g2.fill(shape); |
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195 } |
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196 if (getDrawOutlines()) { |
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197 if (getUseOutlinePaint()) { |
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198 g2.setPaint(getItemOutlinePaint(series, item)); |
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199 } |
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200 else { |
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201 g2.setPaint(getItemPaint(series, item)); |
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202 } |
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203 g2.setStroke(getItemOutlineStroke(series, item)); |
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204 g2.draw(shape); |
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205 } |
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206 |
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207 if (isMinimum) { |
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208 g2.setPaint(getMinimumFillPaint(series, item)); |
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209 g2.fill(shape); |
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210 g2.setPaint(getItemOutlinePaint(series, item)); |
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211 g2.setStroke(getItemOutlineStroke(series, item)); |
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212 g2.draw(shape); |
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213 } |
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214 else if (isMaximum) { |
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215 g2.setPaint(getMaximumFillPaint(series, item)); |
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216 g2.fill(shape); |
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217 g2.setPaint(getItemOutlinePaint(series, item)); |
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218 g2.setStroke(getItemOutlineStroke(series, item)); |
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219 g2.draw(shape); |
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220 } |
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221 } |
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222 // TODO labeling of waterlevels could happen here, too. |
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223 } // if (getItemShapeVisible(dataset, series, item)) |
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224 |
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225 double xx = transX1; |
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226 double yy = transY1; |
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227 if (orientation == PlotOrientation.HORIZONTAL) { |
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228 xx = transY1; |
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229 yy = transX1; |
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230 } |
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231 |
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232 // draw the item label if there is one... |
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233 if (isItemLabelVisible(series, item)) { |
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234 drawItemLabel(g2, orientation, dataset, series, item, xx, yy, |
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235 (y1 < 0.0)); |
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236 } |
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237 |
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238 boolean doWaterlevelLabel = false; |
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239 if (isMinimumX (dataset, series, item)) { |
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240 // TODO find name of dataset/series |
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241 String waterlevelLabel = "label"; |
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242 // TODO Force water of some German rivers to flow direction mountains. |
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243 g2.drawString("waterlevel label", (float)xx, (float)yy-3f); |
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244 } |
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245 |
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246 int domainAxisIndex = plot.getDomainAxisIndex(domainAxis); |
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247 int rangeAxisIndex = plot.getRangeAxisIndex(rangeAxis); |
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248 updateCrosshairValues(crosshairState, x1, y1, domainAxisIndex, |
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249 rangeAxisIndex, transX1, transY1, orientation); |
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250 |
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251 // add an entity for the item, but only if it falls within the data |
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252 // area... |
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253 if (entities != null && isPointInRect(dataArea, xx, yy)) { |
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254 addEntity(entities, entityArea, dataset, series, item, xx, yy); |
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255 } |
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256 } |
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257 |
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258 |
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259 public void setIsMinimumShapeVisisble(int series, boolean isVisible) { |
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260 this.isMinimumShapeVisible.setBoolean(series, isVisible); |
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261 } |
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262 |
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263 |
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264 public boolean isMinimumShapeVisible(int series) { |
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265 if (this.isMinimumShapeVisible.size() <= series) { |
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266 return false; |
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267 } |
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268 |
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269 return isMinimumShapeVisible.getBoolean(series); |
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270 } |
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271 |
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272 |
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273 public void setIsMaximumShapeVisible(int series, boolean isVisible) { |
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274 this.isMaximumShapeVisible.setBoolean(series, isVisible); |
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275 } |
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276 |
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277 |
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278 public boolean isMaximumShapeVisible(int series) { |
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279 if (this.isMaximumShapeVisible.size() <= series) { |
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280 return false; |
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281 } |
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282 |
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283 return isMaximumShapeVisible.getBoolean(series); |
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284 } |
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285 |
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286 |
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287 /** |
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288 * True if the given item of given dataset has the smallest |
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289 * X value within this set. |
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290 */ |
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291 public boolean isMinimumX(XYDataset dataset, int series, int item) { |
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292 return dataset.getXValue(series, item) == getMinimumX(dataset, series); |
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293 } |
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294 |
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295 |
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296 /** |
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297 * Get Minimum X Value of a given series in a dataset. |
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298 * The value is stored for later use if queried the first time. |
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299 */ |
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300 public double getMinimumX(XYDataset dataset, int series) { |
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301 Integer key = Integer.valueOf(series); |
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302 Double old = seriesMinimumX.get(key); |
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303 |
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304 if (old != null) { |
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305 return old.doubleValue(); |
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306 } |
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307 |
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308 logger.debug("Compute minimum of Series: " + series); |
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309 |
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310 double min = Double.MAX_VALUE; |
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311 |
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312 for (int i = 0, n = dataset.getItemCount(series); i < n; i++) { |
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313 double tmpValue = dataset.getXValue(series, i); |
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314 |
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315 if (tmpValue < min) { |
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316 min = tmpValue; |
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317 } |
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318 } |
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319 |
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320 seriesMinimumX.put(key, Double.valueOf(min)); |
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321 |
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322 return min; |
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323 } |
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324 |
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325 |
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326 /** |
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327 * True if the given item of given dataset has the smallest |
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328 * Y value within this set. |
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329 */ |
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330 public boolean isMinimum(XYDataset dataset, int series, int item) { |
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331 return dataset.getYValue(series, item) == getMinimum(dataset, series); |
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332 } |
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333 |
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334 |
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335 /** |
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336 * Get Minimum Y Value of a given series in a dataset. |
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337 * The value is stored for later use if queried the first time. |
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338 */ |
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339 public double getMinimum(XYDataset dataset, int series) { |
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340 Integer key = Integer.valueOf(series); |
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341 Double old = seriesMinimum.get(key); |
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342 |
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343 if (old != null) { |
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344 return old.doubleValue(); |
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345 } |
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346 |
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347 logger.debug("Compute minimum of Series: " + series); |
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348 |
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349 double min = Double.MAX_VALUE; |
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350 |
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351 for (int i = 0, n = dataset.getItemCount(series); i < n; i++) { |
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352 double tmpValue = dataset.getYValue(series, i); |
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353 |
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354 if (tmpValue < min) { |
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355 min = tmpValue; |
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356 } |
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357 } |
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358 |
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359 seriesMinimum.put(key, Double.valueOf(min)); |
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360 |
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361 return min; |
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362 } |
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363 |
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364 |
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365 /** |
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366 * True if the given item of given dataset has the biggest |
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367 * Y value within this set. |
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368 */ |
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369 public boolean isMaximum(XYDataset dataset, int series, int item) { |
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370 return dataset.getYValue(series, item) == getMaximum(dataset, series); |
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371 } |
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372 |
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373 |
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374 /** |
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375 * Get maximum Y Value of a given series in a dataset. |
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376 * The value is stored for later use if queried the first time. |
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377 */ |
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378 public double getMaximum(XYDataset dataset, int series) { |
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379 Integer key = Integer.valueOf(series); |
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Small bugfix: use correct keys for buffering min/max values in EnhancedLineAndShapeRenderer.
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380 Double old = seriesMaximum.get(key); |
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381 |
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382 if (old != null) { |
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383 return old.doubleValue(); |
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384 } |
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385 |
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386 logger.debug("Compute maximum of Series: " + series); |
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387 |
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388 double max = -Double.MAX_VALUE; |
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389 |
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390 for (int i = 0, n = dataset.getItemCount(series); i < n; i++) { |
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391 double tmpValue = dataset.getYValue(series, i); |
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392 |
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393 if (tmpValue > max) { |
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394 max = tmpValue; |
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395 } |
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396 } |
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397 |
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398 seriesMaximum.put(key, Double.valueOf(max)); |
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399 |
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400 return max; |
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|
401 } |
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402 } |
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403 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |