Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/raster/PolygonDatasetProducer.java @ 1104:5207d09e4af6

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fixed range calculation for y-axes in the base chart class (issue233). gnv-artifacts/trunk@1234 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 28 Jun 2010 16:48:03 +0000
parents feae2f9d6c6f
children f953c9a559d8
rev   line source
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
1 package de.intevation.gnv.raster;
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
2
779
b1f5f2a8840f Ordered imports. Removed needless imports. Removed empty headers.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 778
diff changeset
3 import de.intevation.gnv.jfreechart.CompactXYItems;
b1f5f2a8840f Ordered imports. Removed needless imports. Removed empty headers.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 778
diff changeset
4 import de.intevation.gnv.jfreechart.PolygonDataset;
b1f5f2a8840f Ordered imports. Removed needless imports. Removed empty headers.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 778
diff changeset
5 import de.intevation.gnv.jfreechart.PolygonSeries;
b1f5f2a8840f Ordered imports. Removed needless imports. Removed empty headers.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 778
diff changeset
6
b1f5f2a8840f Ordered imports. Removed needless imports. Removed empty headers.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 778
diff changeset
7 import de.intevation.gnv.raster.Vectorizer.Edge;
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
8
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
9 import gnu.trove.TDoubleArrayList;
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
10
779
b1f5f2a8840f Ordered imports. Removed needless imports. Removed empty headers.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 778
diff changeset
11 import java.util.HashMap;
b1f5f2a8840f Ordered imports. Removed needless imports. Removed empty headers.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 778
diff changeset
12 import java.util.List;
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
13
437
b624879d2902 Added vectorizer rings callback to generate iso lines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 436
diff changeset
14 /**
801
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
15 * Vectorizer backend to produce polygon datasets suitable to being
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
16 * displayed with {@link de.intevation.gnv.jfreechart.PolygonPlot}.
803
feae2f9d6c6f Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 801
diff changeset
17 *
780
c4156275c1e1 Bring @author javadoc tags in form '@author <a href="john.doe@example.com">John Doe</a>'
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 779
diff changeset
18 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
437
b624879d2902 Added vectorizer rings callback to generate iso lines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 436
diff changeset
19 */
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
20 public class PolygonDatasetProducer
465
f7038820df2e Added support to trace rasters to JTS multi polygons and multi line strings.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 437
diff changeset
21 extends AbstractProducer
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
22 {
801
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
23 /**
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
24 * Maps value integers to series of polygons to group
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
25 * them by value.
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
26 */
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
27 protected HashMap<Integer, PolygonSeries> polygonSeries;
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
28
801
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
29 /**
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
30 * Default constructor.
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
31 */
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
32 protected PolygonDatasetProducer() {
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
33 }
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
34
801
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
35 /**
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
36 * Constructor to create a PolygonDatasetProducer with
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
37 * a given world bound box.
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
38 * @param minX Min x coord of the world.
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
39 * @param minY Min y coord of the world.
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
40 * @param maxX Max x coord of the world.
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
41 * @param maxY Max y coord of the world.
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
42 */
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
43 public PolygonDatasetProducer(
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
44 double minX, double minY,
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
45 double maxX, double maxY
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
46
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
47 ) {
465
f7038820df2e Added support to trace rasters to JTS multi polygons and multi line strings.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 437
diff changeset
48 super(minX, minY, maxX, maxY);
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
49 polygonSeries = new HashMap<Integer, PolygonSeries>();
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
50 }
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
51
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
52 public void handleRings(
778
9a828e5a2390 Removed trailing whitespace
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 521
diff changeset
53 List<Edge> rings,
9a828e5a2390 Removed trailing whitespace
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 521
diff changeset
54 int value,
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
55 int width,
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
56 int height
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
57 ) {
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
58 if (value == -1) {
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
59 return;
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
60 }
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
61
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
62 Integer v = Integer.valueOf(value);
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
63
465
f7038820df2e Added support to trace rasters to JTS multi polygons and multi line strings.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 437
diff changeset
64 PolygonSeries ps = polygonSeries.get(v);
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
65
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
66 if (ps == null) {
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
67 polygonSeries.put(v, ps = new PolygonSeries());
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
68 ps.setAttribute("fill", v);
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
69 }
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
70
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
71 TDoubleArrayList vertices = new TDoubleArrayList();
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
72
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
73 /* minX = 0*m1 + b1 <=> b1 = minX
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
74 * maxX = (width-1)*m1 + b1
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
75 * m1 = (maxX - minX)/(width-1)
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
76 */
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
77
437
b624879d2902 Added vectorizer rings callback to generate iso lines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 436
diff changeset
78 double b1 = minX;
b624879d2902 Added vectorizer rings callback to generate iso lines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 436
diff changeset
79 double m1 = width != 1
b624879d2902 Added vectorizer rings callback to generate iso lines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 436
diff changeset
80 ? (maxX - minX)/(width-1)
b624879d2902 Added vectorizer rings callback to generate iso lines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 436
diff changeset
81 : 0d;
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
82
437
b624879d2902 Added vectorizer rings callback to generate iso lines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 436
diff changeset
83 double b2 = minY;
b624879d2902 Added vectorizer rings callback to generate iso lines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 436
diff changeset
84 double m2 = height != 1
b624879d2902 Added vectorizer rings callback to generate iso lines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 436
diff changeset
85 ? (maxY - minY)/(height-1)
b624879d2902 Added vectorizer rings callback to generate iso lines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 436
diff changeset
86 : 0d;
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
87
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
88 for (Edge head: rings) {
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
89 Edge current = head;
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
90 do {
437
b624879d2902 Added vectorizer rings callback to generate iso lines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 436
diff changeset
91 vertices.add(m1*(current.a % width) + b1);
b624879d2902 Added vectorizer rings callback to generate iso lines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 436
diff changeset
92 vertices.add(m2*(current.a / width) + b2);
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
93 }
437
b624879d2902 Added vectorizer rings callback to generate iso lines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 436
diff changeset
94 while ((current = current.next) != head);
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
95 ps.addRing(new CompactXYItems(vertices.toNativeArray()));
521
1bf058f1a2d1 Generate seabed polygon to "Profilschnitte".
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 465
diff changeset
96 vertices.reset();
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
97 }
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
98 }
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
99
801
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
100 /**
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
101 * Creates a new PolygonDataset from the polygons build by this
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
102 * backend.
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
103 * @return the new PolygonDataset
d766fe2d917a More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 798
diff changeset
104 */
436
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
105 public PolygonDataset getPolygonDataset() {
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
106 return new PolygonDataset(polygonSeries.values());
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
107 }
6642ab6c583c Added vectorizer rings callback which generates polygon datasets suitable
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
108 }
798
6cff63d0c434 Fixed vim modeline. Added some Javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 780
diff changeset
109 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org