Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/utils/DistanceCalculator.java @ 356:3eee1369c79b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added the Unit of the Parameter to the Query for Parameters in all Parameterqueries where it was still missing. Now the Unit will be displaied in the Combobox and in the Diagramm-Axis-Description gnv-artifacts/trunk@429 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Tue, 15 Dec 2009 14:55:42 +0000
parents da1499a464b9
children 1ab23cd66870
rev   line source
185
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
1 /**
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
2 *
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
3 */
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
4 package de.intevation.gnv.utils;
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
5
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
6 import com.vividsolutions.jts.geom.Point;
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
7
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
8 /**
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
9 * @author Tim Englich <tim.englich@intevation.de>
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
10 *
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
11 */
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
12 public class DistanceCalculator {
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
13
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
14 private final static double flattening = 1.0 / 298.257233563;
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
15
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
16 private final static double earthRadius = 6378137.0 / 1000.0 ;
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
17
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
18 /**
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
19 * Constructor
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
20 */
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
21 public DistanceCalculator() {
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
22 }
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
23
296
da1499a464b9 Declared a method as static to use it without instantiating an object of its class.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 185
diff changeset
24 public static double calculateDistance(Point p1, Point p2){
185
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
25 double resultValue = 0.0;
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
26
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
27 double b1 = p1.getY();
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
28 double b2 = p2.getY();
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
29
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
30 double l1 = p1.getX();
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
31 double l2 = p2.getX();
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
32
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
33
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
34 double F = (b1 + b2) / 2.0;
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
35 double G = (b1 - b2) / 2.0;
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
36 double l = (l1 - l2) / 2.0;
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
37
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
38 F = (Math.PI / 180.0) * F;
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
39 G = (Math.PI / 180.0) * G;
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
40 l = (Math.PI / 180.0) * l;
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
41
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
42 double S = ((Math.sin(G) * Math.sin(G)) * ((Math.cos(l) * Math.cos(l))))+
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
43 ((Math.cos(F) * Math.cos(F)) * ((Math.sin(l) * Math.sin(l))));
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
44
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
45 double C = ((Math.cos(G) * Math.cos(G)) * ((Math.cos(l) * Math.cos(l))))+
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
46 ((Math.sin(F) * Math.sin(F)) * ((Math.sin(l) * Math.sin(l))));
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
47
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
48 double w = Math.atan(Math.sqrt((S/C)));
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
49
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
50 double D = 2.0 * w * earthRadius;
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
51
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
52 double R = Math.sqrt((S*C)) / w;
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
53
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
54 double H1 = (3.0 * R - 1.0 ) / (2.0 * C);
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
55 double H2 = (3.0 * R + 1.0 ) / (2.0 * S);
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
56
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
57 resultValue = D * (1 + (flattening * H1 * (Math.sin(F) * Math.sin(F)) *
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
58 (Math.cos(G) * Math.cos(G))) -
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
59 (flattening * H2 * (Math.cos(F) * Math.cos(F)) *
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
60 (Math.sin(G) * Math.sin(G))));
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
61
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
62 return resultValue;
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
63 }
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
64
5fc8f41669a6 Added Calculation of the Distance in the unit km for Geodetic-Coordinates according to the Specification GT_0030.004
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
65 }
http://dive4elements.wald.intevation.org