Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/PolygonDataset.java @ 726:8d475151b2c1

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Use a better key - hash served by getHash() from StateBase - to put chart data into cache (issue201). gnv-artifacts/trunk@759 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 10 Mar 2010 15:04:30 +0000
parents 92b7ccbf6163
children b1f5f2a8840f
rev   line source
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1 package de.intevation.gnv.jfreechart;
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2
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3 import java.util.List;
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4 import java.util.Collection;
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5 import java.util.ArrayList;
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6
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7 import org.jfree.data.Range;
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8 import org.jfree.data.general.AbstractSeriesDataset;
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9
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10 /**
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11 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
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12 */
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13 public class PolygonDataset
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14 extends AbstractSeriesDataset
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15 {
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16 /** PolygonSeries included in this Dataset */
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17 private List data;
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18
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19
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20 public PolygonDataset() {
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21 data = new ArrayList();
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22 }
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23
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24 public PolygonDataset(Collection series) {
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25 data = new ArrayList(series);
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26 }
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27
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28 public PolygonDataset(PolygonSeries series) {
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29 this();
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30
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31 if (series != null) {
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32 data.add(series);
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33 }
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34 }
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35
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36
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37 public void addSeries(PolygonSeries series) {
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38 if (series == null)
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39 throw new IllegalArgumentException("Null 'series' argument.");
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40
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41 data.add(series);
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42 }
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43
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44 public void addAllSeries(Collection<PolygonSeries> series) {
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45 data.addAll(series);
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46 }
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47
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48 public Range getDomainBounds() {
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49 double lower = Double.POSITIVE_INFINITY;
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50 double upper = Double.NEGATIVE_INFINITY;
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51 int seriesCount = getSeriesCount();
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52
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53 for (int s = 0; s < seriesCount; s++) {
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54 PolygonSeries series = getSeries(s);
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55
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56 Range domainRange = series.getDomainBounds();
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57 double minX = domainRange.getLowerBound();
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58 if (!Double.isNaN(minX)) {
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59 lower = Math.min(lower, minX);
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60 }
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61
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62 double maxX = domainRange.getUpperBound();
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63 if (!Double.isNaN(maxX)) {
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64 upper = Math.max(upper, maxX);
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65 }
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66 }
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67
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68 return new Range(lower, upper);
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69 }
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70
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71
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72 public Range getRangeBounds() {
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73 double lower = Double.POSITIVE_INFINITY;
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74 double upper = Double.NEGATIVE_INFINITY;
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75 int seriesCount = getSeriesCount();
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76
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77 for (int i = 0; i < seriesCount; i++) {
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78 PolygonSeries series = getSeries(i);
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79
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80 Range range = series.getRangeBounds();
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81 double minX = range.getLowerBound();
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82 if (!Double.isNaN(minX)) {
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83 lower = Math.min(lower, minX);
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84 }
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85
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86 double maxX = range.getUpperBound();
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87 if (!Double.isNaN(maxX)) {
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88 upper = Math.max(upper, maxX);
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89 }
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90 }
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91
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92 return new Range(lower, upper);
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93 }
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94
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95
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96 public int getSeriesCount() {
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97 return data.size();
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98 }
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99
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100
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101 public Comparable getSeriesKey(int series) {
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102 return ((PolygonSeries)data.get(series)).getKey();
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103 }
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104
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105
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106 public PolygonSeries getSeries(int idx) {
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107 return (PolygonSeries)data.get(idx);
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108 }
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109 }
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110 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org