Mercurial > dive4elements > gnv-client
annotate gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonDataset.java @ 1113:e7efbded1367
Summarized changes for RELEASE 1.1
gnv-artifacts/trunk@1251 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 30 Jun 2010 12:26:04 +0000 |
parents | 05bf8534a35a |
children | f953c9a559d8 |
rev | line source |
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422
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1 package de.intevation.gnv.jfreechart; |
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2 |
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3 import java.util.ArrayList; |
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4 import java.util.Collection; |
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5 import java.util.List; |
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6 |
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7 import org.jfree.data.Range; |
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8 |
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9 import org.jfree.data.general.AbstractSeriesDataset; |
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10 |
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11 /** |
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12 * An implementation of {@link org.jfree.data.xy.XYDataset} to create 2D charts. |
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13 * This dataset contains several <code>PolygonSeries</code> and is used by |
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14 * <code>PolygonRenderer</code> to draw its items into a 2D chart. |
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15 * |
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16 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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17 */ |
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18 public class PolygonDataset |
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19 extends AbstractSeriesDataset |
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20 { |
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21 /** |
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22 * PolygonSeries included in this Dataset |
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23 */ |
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24 private List data; |
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25 |
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26 |
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27 /** |
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28 * Constructor. |
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29 */ |
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30 public PolygonDataset() { |
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31 data = new ArrayList(); |
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32 } |
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33 |
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34 /** |
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35 * Constructs a new PolygonDataset containing multiple PolygonSeries. |
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36 * |
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37 * @param series A collection containing some PolygonSeries. |
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38 */ |
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39 public PolygonDataset(Collection series) { |
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40 data = new ArrayList(series); |
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41 } |
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42 |
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43 /** |
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44 * Constructs a PolygonDataset with a single PolygonSeries. |
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45 * |
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46 * @param series A PolygonSeries. |
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47 */ |
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48 public PolygonDataset(PolygonSeries series) { |
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49 this(); |
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50 |
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51 if (series != null) { |
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52 data.add(series); |
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53 } |
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54 } |
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55 |
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56 |
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57 /** |
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58 * |
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59 * @param series |
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60 */ |
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61 public void addSeries(PolygonSeries series) { |
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62 if (series == null) |
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63 throw new IllegalArgumentException("Null 'series' argument."); |
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64 |
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65 data.add(series); |
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66 } |
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67 |
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68 /** |
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69 * |
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70 * @param series |
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71 */ |
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72 public void addAllSeries(Collection<PolygonSeries> series) { |
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73 data.addAll(series); |
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74 } |
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75 |
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76 /** |
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77 * Retrieves the x-axis range of all PolygonSeries in this dataset. |
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78 * |
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79 * @return range of the x-axis. |
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80 */ |
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81 public Range getDomainBounds() { |
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82 double lower = Double.POSITIVE_INFINITY; |
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83 double upper = Double.NEGATIVE_INFINITY; |
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84 int seriesCount = getSeriesCount(); |
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85 |
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86 for (int s = 0; s < seriesCount; s++) { |
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87 PolygonSeries series = getSeries(s); |
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88 |
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89 Range domainRange = series.getDomainBounds(); |
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90 double minX = domainRange.getLowerBound(); |
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91 if (!Double.isNaN(minX)) { |
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92 lower = Math.min(lower, minX); |
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93 } |
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94 |
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95 double maxX = domainRange.getUpperBound(); |
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96 if (!Double.isNaN(maxX)) { |
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97 upper = Math.max(upper, maxX); |
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98 } |
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99 } |
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100 |
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101 return new Range(lower, upper); |
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102 } |
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103 |
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104 |
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105 /** |
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106 * Retrieves the y-axis range of all PolygonSeries in this dataset. |
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107 * |
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108 * @return the y-axis range. |
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109 */ |
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110 public Range getRangeBounds() { |
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111 double lower = Double.POSITIVE_INFINITY; |
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112 double upper = Double.NEGATIVE_INFINITY; |
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113 int seriesCount = getSeriesCount(); |
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114 |
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115 for (int i = 0; i < seriesCount; i++) { |
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116 PolygonSeries series = getSeries(i); |
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117 |
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118 Range range = series.getRangeBounds(); |
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119 double minX = range.getLowerBound(); |
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120 if (!Double.isNaN(minX)) { |
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121 lower = Math.min(lower, minX); |
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122 } |
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123 |
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124 double maxX = range.getUpperBound(); |
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125 if (!Double.isNaN(maxX)) { |
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126 upper = Math.max(upper, maxX); |
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127 } |
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128 } |
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129 |
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130 return new Range(lower, upper); |
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131 } |
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132 |
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133 |
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134 /** |
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135 * Returns the number of series in this dataset. |
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136 * |
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137 * @return the number of series in this dataset. |
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138 */ |
422
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139 public int getSeriesCount() { |
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140 return data.size(); |
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141 } |
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142 |
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143 |
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144 /** |
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145 * Returns the key for a series. |
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146 * |
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147 * @param index Index of a specific series. |
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148 * @return the series key of the series with the given index. |
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149 */ |
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150 public Comparable getSeriesKey(int index) { |
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151 return ((PolygonSeries)data.get(index)).getKey(); |
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152 } |
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153 |
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154 |
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155 /** |
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156 * |
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157 * @param idx Index. |
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158 * @return the series with the given index. |
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159 */ |
422
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160 public PolygonSeries getSeries(int idx) { |
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161 return (PolygonSeries)data.get(idx); |
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162 } |
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163 } |
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164 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |