Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/jfree/EnhancedLineAndShapeRenderer.java @ 2648:8aaa7f4ce06a
Let theme define whether or not to display a (yet static) label for line).
flys-artifacts/trunk@4306 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Thu, 26 Apr 2012 09:51:13 +0000 |
parents | 4b7a28e81643 |
children | 6f5fc3de0d48 |
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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Let theme define whether or not to display a (yet static) label for line).
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parents:
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36 protected BooleanList showLineLabel; |
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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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40 protected Map<Integer, Double> seriesMaximum; |
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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.showLineLabel = new BooleanList(); |
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48 this.seriesMinimum = new HashMap<Integer, Double>(); |
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49 this.seriesMaximum = new HashMap<Integer, Double>(); |
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50 this.seriesMinimumX = new HashMap<Integer, Double>(); |
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51 } |
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parents:
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52 |
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parents:
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53 |
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54 public boolean getItemShapeVisible(XYDataset dataset, int series, int item){ |
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55 if (super.getItemShapeVisible(series, item)) { |
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56 return true; |
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57 } |
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parents:
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58 |
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59 if (isMinimumShapeVisible(series) && isMinimum(dataset, series, item)) { |
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60 return true; |
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61 } |
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parents:
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62 |
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63 if (isMaximumShapeVisible(series) && isMaximum(dataset, series, item)) { |
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64 return true; |
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65 } |
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parents:
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66 |
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67 return false; |
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68 } |
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parents:
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69 |
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parents:
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70 |
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71 public Shape getMaximumShape(int series, int column) { |
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72 return new Rectangle2D.Double(-5d, -5d, 10d, 10d); |
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parents:
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73 } |
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#523 Improved the look of minimum and maximum shapes in chart series.
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parents:
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74 |
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#523 Improved the look of minimum and maximum shapes in chart series.
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parents:
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75 |
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76 public Shape getMinimumShape(int series, int column) { |
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77 return new Rectangle2D.Double(-5d, -5d, 10d, 10d); |
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parents:
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78 } |
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#523 Improved the look of minimum and maximum shapes in chart series.
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parents:
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79 |
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#523 Improved the look of minimum and maximum shapes in chart series.
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parents:
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80 |
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81 public Paint getMaximumFillPaint(int series, int column) { |
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82 Paint p = getItemPaint(series, column); |
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83 |
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84 if (p instanceof Color) { |
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85 Color c = (Color) p; |
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86 Color b = c; |
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87 |
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88 for (int i = 0; i < 2; i++) { |
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89 b = b.darker(); |
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90 } |
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91 |
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92 return b; |
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93 } |
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94 |
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95 logger.warn("Item paint is no instance of Color!"); |
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96 return p; |
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97 } |
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98 |
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99 |
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100 public Paint getMinimumFillPaint(int series, int column) { |
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101 Paint p = getItemPaint(series, column); |
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102 |
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103 if (p instanceof Color) { |
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104 Color c = (Color) p; |
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105 Color b = c; |
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106 |
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107 for (int i = 0; i < 2; i++) { |
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108 b = b.darker(); |
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109 } |
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110 |
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111 return b; |
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112 } |
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113 |
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114 logger.warn("Item paint is no instance of Color!"); |
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115 return p; |
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116 } |
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117 |
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118 |
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119 /** |
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120 * Overrides XYLineAndShapeRenderer.drawSecondaryPass() to call an adapted |
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121 * method getItemShapeVisible() which now takes an XYDataset. So, 99% of |
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122 * code equal the code in XYLineAndShapeRenderer. |
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123 */ |
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124 @Override |
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125 protected void drawSecondaryPass( |
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126 Graphics2D g2, |
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127 XYPlot plot, |
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128 XYDataset dataset, |
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129 int pass, |
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130 int series, |
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131 int item, |
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132 ValueAxis domainAxis, |
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133 Rectangle2D dataArea, |
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134 ValueAxis rangeAxis, |
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135 CrosshairState crosshairState, |
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136 EntityCollection entities |
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137 ) { |
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138 Shape entityArea = null; |
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139 |
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140 // get the data point... |
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141 double x1 = dataset.getXValue(series, item); |
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142 double y1 = dataset.getYValue(series, item); |
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143 if (Double.isNaN(y1) || Double.isNaN(x1)) { |
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144 return; |
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145 } |
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146 |
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147 PlotOrientation orientation = plot.getOrientation(); |
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148 RectangleEdge xAxisLocation = plot.getDomainAxisEdge(); |
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149 RectangleEdge yAxisLocation = plot.getRangeAxisEdge(); |
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150 double transX1 = domainAxis.valueToJava2D(x1, dataArea, xAxisLocation); |
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151 double transY1 = rangeAxis.valueToJava2D(y1, dataArea, yAxisLocation); |
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152 |
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153 if (getItemShapeVisible(dataset, series, item)) { |
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154 Shape shape = null; |
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155 |
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156 // OPTIMIZE: instead of calculating minimum and maximum for every |
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157 // point, calculate it just once (assume that dataset |
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158 // content does not change during rendering). |
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159 // NOTE: Above OPTIMIZE might already be fulfilled to most extend. |
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160 boolean isMinimum = isMinimumShapeVisible(series) |
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161 && isMinimum(dataset, series, item); |
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162 |
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163 boolean isMaximum = isMaximumShapeVisible(series) |
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164 && isMaximum(dataset, series, item); |
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165 |
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166 if (isMinimum) { |
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167 logger.debug("Create a Minimum shape."); |
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168 shape = getMinimumShape(series, item); |
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169 } |
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170 else if (isMaximum) { |
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171 logger.debug("Create a Maximum shape."); |
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172 shape = getMaximumShape(series, item); |
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173 } |
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174 else { |
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175 shape = getItemShape(series, item); |
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176 } |
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177 |
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178 if (orientation == PlotOrientation.HORIZONTAL) { |
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179 shape = ShapeUtilities.createTranslatedShape(shape, transY1, |
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180 transX1); |
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181 } |
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182 else if (orientation == PlotOrientation.VERTICAL) { |
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183 shape = ShapeUtilities.createTranslatedShape(shape, transX1, |
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184 transY1); |
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185 } |
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186 entityArea = shape; |
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187 if (shape.intersects(dataArea)) { |
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188 if (getItemShapeFilled(series, item)) { |
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189 if (getUseFillPaint()) { |
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190 g2.setPaint(getItemFillPaint(series, item)); |
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191 } |
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192 else { |
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193 g2.setPaint(getItemPaint(series, item)); |
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194 } |
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195 g2.fill(shape); |
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196 } |
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197 if (getDrawOutlines()) { |
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198 if (getUseOutlinePaint()) { |
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199 g2.setPaint(getItemOutlinePaint(series, item)); |
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200 } |
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201 else { |
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202 g2.setPaint(getItemPaint(series, item)); |
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203 } |
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204 g2.setStroke(getItemOutlineStroke(series, item)); |
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205 g2.draw(shape); |
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206 } |
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207 |
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208 if (isMinimum) { |
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209 g2.setPaint(getMinimumFillPaint(series, item)); |
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210 g2.fill(shape); |
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211 g2.setPaint(getItemOutlinePaint(series, item)); |
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212 g2.setStroke(getItemOutlineStroke(series, item)); |
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213 g2.draw(shape); |
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214 } |
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215 else if (isMaximum) { |
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216 g2.setPaint(getMaximumFillPaint(series, item)); |
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217 g2.fill(shape); |
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218 g2.setPaint(getItemOutlinePaint(series, item)); |
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219 g2.setStroke(getItemOutlineStroke(series, item)); |
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220 g2.draw(shape); |
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221 } |
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222 } |
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223 // TODO labeling of waterlevels could happen here, too. |
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224 } // if (getItemShapeVisible(dataset, series, item)) |
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225 |
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226 double xx = transX1; |
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227 double yy = transY1; |
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228 if (orientation == PlotOrientation.HORIZONTAL) { |
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229 xx = transY1; |
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230 yy = transX1; |
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231 } |
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232 |
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233 // draw the item label if there is one... |
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234 if (isItemLabelVisible(series, item)) { |
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235 drawItemLabel(g2, orientation, dataset, series, item, xx, yy, |
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236 (y1 < 0.0)); |
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237 } |
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238 |
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239 boolean doWaterlevelLabel = false; |
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240 if (isShowLineLabel(series) && isMinimumX (dataset, series, item)) { |
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241 // TODO find name of dataset/series |
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242 String waterlevelLabel = "label"; |
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243 // TODO Force water of some German rivers to flow direction mountains. |
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244 g2.drawString("waterlevel label", (float)xx, (float)yy-3f); |
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245 } |
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246 |
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247 int domainAxisIndex = plot.getDomainAxisIndex(domainAxis); |
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248 int rangeAxisIndex = plot.getRangeAxisIndex(rangeAxis); |
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249 updateCrosshairValues(crosshairState, x1, y1, domainAxisIndex, |
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250 rangeAxisIndex, transX1, transY1, orientation); |
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251 |
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252 // add an entity for the item, but only if it falls within the data |
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253 // area... |
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254 if (entities != null && isPointInRect(dataArea, xx, yy)) { |
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255 addEntity(entities, entityArea, dataset, series, item, xx, yy); |
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256 } |
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257 } |
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258 |
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259 |
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260 public void setIsMinimumShapeVisisble(int series, boolean isVisible) { |
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261 this.isMinimumShapeVisible.setBoolean(series, isVisible); |
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262 } |
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263 |
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264 |
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265 public boolean isMinimumShapeVisible(int series) { |
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266 if (this.isMinimumShapeVisible.size() <= series) { |
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267 return false; |
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268 } |
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269 |
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270 return isMinimumShapeVisible.getBoolean(series); |
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271 } |
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272 |
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273 |
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274 public void setIsMaximumShapeVisible(int series, boolean isVisible) { |
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275 this.isMaximumShapeVisible.setBoolean(series, isVisible); |
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276 } |
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277 |
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278 |
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279 public boolean isMaximumShapeVisible(int series) { |
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280 if (this.isMaximumShapeVisible.size() <= series) { |
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281 return false; |
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282 } |
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283 |
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284 return isMaximumShapeVisible.getBoolean(series); |
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285 } |
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286 |
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287 /** Whether or not a label should be shown for series. */ |
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288 public boolean isShowLineLabel(int series) { |
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289 if (this.showLineLabel.size() <= series) { |
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290 return false; |
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291 } |
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292 |
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293 return showLineLabel.getBoolean(series); |
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294 } |
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295 |
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296 |
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297 /** Sets whether or not a label should be shown for series. */ |
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298 public void setShowLineLabel(boolean showLineLabel, int series) { |
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299 this.showLineLabel.setBoolean(series, showLineLabel); |
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300 } |
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301 |
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302 |
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303 /** |
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304 * True if the given item of given dataset has the smallest |
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305 * X value within this set. |
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306 */ |
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307 public boolean isMinimumX(XYDataset dataset, int series, int item) { |
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308 return dataset.getXValue(series, item) == getMinimumX(dataset, series); |
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309 } |
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310 |
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311 |
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312 /** |
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313 * Get Minimum X Value of a given series in a dataset. |
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314 * The value is stored for later use if queried the first time. |
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315 */ |
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316 public double getMinimumX(XYDataset dataset, int series) { |
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317 Integer key = Integer.valueOf(series); |
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318 Double old = seriesMinimumX.get(key); |
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319 |
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320 if (old != null) { |
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321 return old.doubleValue(); |
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322 } |
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323 |
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324 logger.debug("Compute minimum of Series: " + series); |
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325 |
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326 double min = Double.MAX_VALUE; |
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327 |
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328 for (int i = 0, n = dataset.getItemCount(series); i < n; i++) { |
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329 double tmpValue = dataset.getXValue(series, i); |
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330 |
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331 if (tmpValue < min) { |
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332 min = tmpValue; |
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333 } |
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334 } |
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335 |
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336 seriesMinimumX.put(key, Double.valueOf(min)); |
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337 |
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338 return min; |
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339 } |
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340 |
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341 |
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342 /** |
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343 * True if the given item of given dataset has the smallest |
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344 * Y value within this set. |
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345 */ |
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346 public boolean isMinimum(XYDataset dataset, int series, int item) { |
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347 return dataset.getYValue(series, item) == getMinimum(dataset, series); |
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348 } |
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349 |
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350 |
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351 /** |
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352 * Get Minimum Y Value of a given series in a dataset. |
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353 * The value is stored for later use if queried the first time. |
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354 */ |
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355 public double getMinimum(XYDataset dataset, int series) { |
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356 Integer key = Integer.valueOf(series); |
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357 Double old = seriesMinimum.get(key); |
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358 |
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359 if (old != null) { |
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360 return old.doubleValue(); |
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361 } |
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362 |
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363 logger.debug("Compute minimum of Series: " + series); |
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364 |
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365 double min = Double.MAX_VALUE; |
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366 |
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367 for (int i = 0, n = dataset.getItemCount(series); i < n; i++) { |
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368 double tmpValue = dataset.getYValue(series, i); |
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369 |
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370 if (tmpValue < min) { |
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371 min = tmpValue; |
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372 } |
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373 } |
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374 |
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375 seriesMinimum.put(key, Double.valueOf(min)); |
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376 |
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377 return min; |
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378 } |
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379 |
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380 |
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381 /** |
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382 * True if the given item of given dataset has the biggest |
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383 * Y value within this set. |
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384 */ |
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385 public boolean isMaximum(XYDataset dataset, int series, int item) { |
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386 return dataset.getYValue(series, item) == getMaximum(dataset, series); |
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387 } |
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388 |
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389 |
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390 /** |
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391 * Get maximum Y Value of a given series in a dataset. |
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392 * The value is stored for later use if queried the first time. |
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393 */ |
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394 public double getMaximum(XYDataset dataset, int series) { |
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395 Integer key = Integer.valueOf(series); |
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396 Double old = seriesMaximum.get(key); |
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397 |
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398 if (old != null) { |
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399 return old.doubleValue(); |
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400 } |
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401 |
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402 logger.debug("Compute maximum of Series: " + series); |
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403 |
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404 double max = -Double.MAX_VALUE; |
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405 |
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406 for (int i = 0, n = dataset.getItemCount(series); i < n; i++) { |
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407 double tmpValue = dataset.getYValue(series, i); |
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408 |
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409 if (tmpValue > max) { |
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410 max = tmpValue; |
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411 } |
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412 } |
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413 |
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414 seriesMaximum.put(key, Double.valueOf(max)); |
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415 |
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416 return max; |
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417 } |
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418 } |
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419 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |