Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/math/LinearMetrics.java @ 364:2413273f1c13

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly. gnv-artifacts/trunk@439 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 16 Dec 2009 11:58:44 +0000
parents aec85d00d82c
children 6cff63d0c434
rev   line source
360
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
1 package de.intevation.gnv.math;
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
2
361
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 360
diff changeset
3 import com.vividsolutions.jts.geom.Coordinate;
360
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
4
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
5 /**
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
6 * @author Sascha L. Teichmann
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
7 */
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
8 public final class LinearMetrics
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
9 implements Metrics
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
10 {
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
11 public static final Metrics INSTANCE =
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
12 new LinearMetrics();
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
13
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
14 public static final class LinearInterpolator
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
15 implements Interpolator
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
16 {
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
17 private double mx;
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
18 private double bx;
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
19 private double my;
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
20 private double by;
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
21
361
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 360
diff changeset
22 public LinearInterpolator(Coordinate p1, Coordinate p2) {
360
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
23
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
24 /*
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
25 I) p1.x = 0*m + bx
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
26 II) p2.x = 1*m + bx
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
27
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
28 bx = p1.x
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
29
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
30 p2.x = m + p1.x
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
31
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
32 mx = p2.x - p1.x
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
33 */
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
34
361
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 360
diff changeset
35 bx = p1.x;
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 360
diff changeset
36 mx = p2.x - bx;
360
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
37
361
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 360
diff changeset
38 by = p1.y;
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 360
diff changeset
39 my = p2.y - by;
360
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
40 }
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
41
361
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 360
diff changeset
42 public void interpolate(double t, Coordinate v) {
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 360
diff changeset
43 v.x = t*mx + bx;
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 360
diff changeset
44 v.y = t*my + by;
360
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
45 }
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
46 } // class LinearInterpolator
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
47
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
48 private LinearMetrics() {
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
49 }
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
50
361
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 360
diff changeset
51 public double distance(Coordinate p1, Coordinate p2) {
360
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
52 return p1.distance(p2);
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
53 }
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
54
361
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 360
diff changeset
55 public Interpolator getInterpolator(Coordinate p1, Coordinate p2) {
360
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
56 return new LinearInterpolator(p1, p2);
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
57 }
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
58 }
ee760729f6b8 Added mapping from linear diagram space to 2D map coordinates.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
59 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8:
http://dive4elements.wald.intevation.org