Mercurial > dive4elements > gnv-client

comparison gnv-artifacts/src/main/java/de/intevation/gnv/raster/IsoPolygonSeriesProducer.java @ 657:af3f56758f59

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merged gnv-artifacts/0.5
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:13:53 +0200
parents 1bf058f1a2d1
children b1f5f2a8840f
comparison
equal deleted inserted replaced
590:5f5f273c8566 657:af3f56758f59
1 package de.intevation.gnv.raster;
2
3 import java.util.ArrayList;
4 import java.util.Collection;
5
6 import org.apache.log4j.Logger;
7
8 import gnu.trove.TIntObjectHashMap;
9 import gnu.trove.TDoubleArrayList;
10
11 import de.intevation.gnv.raster.Vectorizer.Edge;
12
13 import de.intevation.gnv.math.IJKey;
14
15 import de.intevation.gnv.jfreechart.PolygonSeries;
16 import de.intevation.gnv.jfreechart.CompactXYItems;
17
18 /**
19 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de)
20 */
21 public class IsoPolygonSeriesProducer
22 extends IsoProducer
23 {
24 private static Logger log = Logger.getLogger(
25 IsoPolygonSeriesProducer.class);
26
27 public static final Float LINE_WIDTH = Float.valueOf(0.1f);
28
29 public IsoPolygonSeriesProducer(
30 double minX, double minY,
31 double maxX, double maxY
32 ) {
33 super(minX, minY, maxX, maxY);
34 }
35
36 public Collection<PolygonSeries> getSeries() {
37 return getSeries(null);
38 }
39
40 public Collection<PolygonSeries> getSeries(
41 AttributeGenerator attributeGenerator
42 ) {
43 ArrayList<PolygonSeries> series = new ArrayList<PolygonSeries>();
44
45 double b1 = minX;
46 double m1 = width != 1
47 ? (maxX - minX)/(width-1)
48 : 0d;
49
50 double b2 = minY;
51 double m2 = height != 1
52 ? (maxY - minY)/(height-1)
53 : 0d;
54
55 TDoubleArrayList vertices = new TDoubleArrayList();
56
57 for (IJKey key: joinPairs()) {
58 PolygonSeries ps = new PolygonSeries();
59
60 // process complete
61 ArrayList<Edge> completeList = complete.get(key);
62 if (completeList != null) {
63 for (Edge head: completeList) {
64 Edge current = head;
65 do {
66 vertices.add(m1*(current.a % width) + b1);
67 vertices.add(m2*(current.a / width) + b2);
68 }
69 while ((current = current.next) != head);
70 // add head again to close shape
71 vertices.add(m1*(head.a % width) + b1);
72 vertices.add(m2*(head.a / width) + b2);
73 ps.addRing(new CompactXYItems(vertices.toNativeArray()));
74 vertices.reset();
75 }
76 }
77
78 // process open
79 TIntObjectHashMap map = commonOpen.get(key);
80
81 if (map != null) {
82 for (Edge head: headList(map)) {
83
84 head = Vectorizer.simplify(head, width);
85 Edge current = head, last = head;
86 do {
87 vertices.add(m1*(current.a % width) + b1);
88 vertices.add(m2*(current.a / width) + b2);
89 last = current;
90 }
91 while ((current = current.next) != null);
92 // add b from tail
93 vertices.add(m1*(last.b % width) + b1);
94 vertices.add(m2*(last.b / width) + b2);
95 ps.addRing(new CompactXYItems(vertices.toNativeArray()));
96 vertices.reset();
97 } // for all in common open
98 } // if map defined for key
99
100 if (ps.getItemCount() > 0) {
101 series.add(ps);
102 if (attributeGenerator != null) {
103 Object attribute = attributeGenerator
104 .generateAttribute(key.i, key.j);
105
106 if (attribute != null) {
107 ps.setAttribute("label", attribute);
108 }
109 }
110 ps.setAttribute("line.width", LINE_WIDTH);
111 }
112 } // for all pairs
113
114 return series;
115 }
116 }
117 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8:
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