Mercurial > dive4elements > gnv-client
annotate gnv-artifacts/src/main/java/de/intevation/gnv/raster/IsoProducer.java @ 626:61f688a69a55
Split up export modes from output modes.
gnv-artifacts/trunk@700 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Tue, 23 Feb 2010 11:47:08 +0000 |
parents | f7038820df2e |
children | 9a828e5a2390 |
rev | line source |
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1 package de.intevation.gnv.raster; |
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2 |
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3 import java.util.List; |
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4 import java.util.ArrayList; |
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5 import java.util.HashMap; |
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6 import java.util.HashSet; |
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7 |
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8 import gnu.trove.TIntObjectHashMap; |
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9 import gnu.trove.TIntHashSet; |
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10 import gnu.trove.TObjectProcedure; |
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11 |
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12 import de.intevation.gnv.math.IJKey; |
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13 |
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14 import de.intevation.gnv.raster.Vectorizer.Edge; |
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15 |
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16 /** |
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17 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de) |
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18 */ |
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19 public class IsoProducer |
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20 extends AbstractProducer |
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21 { |
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22 public interface AttributeGenerator { |
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23 |
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24 Object generateAttribute(int neighbor1, int neighbor2); |
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25 |
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26 } // interface AttributeGenerator |
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27 |
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28 protected HashMap<Edge, Integer> open; |
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29 protected HashMap<IJKey, TIntObjectHashMap> commonOpen; |
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30 protected HashMap<IJKey, ArrayList<Edge>> complete; |
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31 |
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32 protected int width; |
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33 protected int height; |
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34 |
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35 public IsoProducer( |
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36 double minX, double minY, |
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37 double maxX, double maxY |
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38 ) { |
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39 super(minX, minY, maxX, maxY); |
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40 |
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41 open = new HashMap<Edge, Integer>(); |
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42 commonOpen = new HashMap<IJKey, TIntObjectHashMap>(); |
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43 complete = new HashMap<IJKey, ArrayList<Edge>>(); |
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44 } |
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45 |
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46 public void handleRings( |
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47 List<Edge> rings, |
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48 int value, |
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49 int width, |
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50 int height |
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51 ) { |
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52 if (value == -1) { |
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53 return; |
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54 } |
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55 this.width = width; |
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56 this.height = height; |
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57 |
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58 Integer v = Integer.valueOf(value); |
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59 |
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60 for (Edge head: rings) { |
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61 Edge current = head; |
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62 do { |
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63 Integer neighbor = open.remove(current); |
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64 |
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65 if (neighbor != null) { |
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66 IJKey pair = new IJKey(value, neighbor.intValue()); |
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67 pair.sort(); |
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68 |
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69 TIntObjectHashMap co = commonOpen.get(pair); |
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70 |
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71 if (co == null) { |
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72 commonOpen.put(pair, co = new TIntObjectHashMap()); |
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73 } |
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74 |
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75 Edge edge = new Edge(current); |
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76 |
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77 Edge otherA = (Edge)co.remove(edge.a); |
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78 if (otherA != null) { |
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79 otherA.chain(edge, edge.a); |
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80 } |
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81 |
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82 Edge otherB = (Edge)co.remove(edge.b); |
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83 if (otherB != null) { |
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84 otherB.chain(edge, edge.b); |
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85 } |
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86 |
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87 if (edge.isComplete()) { |
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88 ArrayList list = complete.get(pair); |
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89 if (list == null) { |
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90 complete.put(pair, list = new ArrayList()); |
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91 } |
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92 list.add(Vectorizer.simplify(edge, width)); |
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93 } |
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94 else { |
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95 if (otherA == null) { |
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96 co.put(edge.a, edge); |
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97 } |
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98 if (otherB == null) { |
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99 co.put(edge.b, edge); |
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100 } |
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101 } |
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102 } |
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103 else { |
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104 Edge edge = new Edge(current.b, current.a); |
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105 open.put(edge, v); |
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106 } |
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107 |
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108 current = current.next; |
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109 } |
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110 while (current != head); |
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111 } // for all rings |
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112 |
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113 } // handleRings |
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114 |
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115 protected HashSet<IJKey> joinPairs() { |
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116 HashSet<IJKey> pairs = new HashSet<IJKey>(); |
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117 pairs.addAll(complete .keySet()); |
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118 pairs.addAll(commonOpen.keySet()); |
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119 return pairs; |
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120 } |
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121 |
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122 protected static ArrayList<Edge> headList(TIntObjectHashMap map) { |
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123 final ArrayList<Edge> headList = new ArrayList<Edge>(); |
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124 map.forEachValue(new TObjectProcedure() { |
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125 TIntHashSet headSet = new TIntHashSet(); |
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126 public boolean execute(Object value) { |
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127 Edge head = ((Edge)value).head(); |
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128 if (headSet.add(head.a)) { |
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129 headList.add(head); |
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130 } |
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131 return true; |
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132 } |
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133 }); |
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134 return headList; |
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135 } |
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136 |
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137 public void clear() { |
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138 open.clear(); |
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139 complete.clear(); |
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140 commonOpen.clear(); |
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141 } |
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142 } |
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143 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |