Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/math/L1Comparator.java @ 361:aec85d00d82c
Added code to do 2D interpolations along a digitied track on the map.
Not connected to the transition model, yet.
gnv-artifacts/trunk@435 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Tue, 15 Dec 2009 22:25:53 +0000 |
| parents | |
| children | ab29e4ff2fda |
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| 360:ee760729f6b8 | 361:aec85d00d82c |
|---|---|
| 1 package de.intevation.gnv.math; | |
| 2 | |
| 3 import java.util.Comparator; | |
| 4 | |
| 5 import com.vividsolutions.jts.geom.Coordinate; | |
| 6 | |
| 7 /** | |
| 8 * @author Sascha L. Teichmann | |
| 9 */ | |
| 10 public class L1Comparator | |
| 11 implements Comparator | |
| 12 { | |
| 13 private Coordinate ref; | |
| 14 | |
| 15 public L1Comparator(Coordinate ref) { | |
| 16 this.ref = ref; | |
| 17 } | |
| 18 | |
| 19 public int compare(Object a, Object b) { | |
| 20 Coordinate pa = (Coordinate)a; | |
| 21 Coordinate pb = (Coordinate)b; | |
| 22 double da = Point2d.L1(ref, pa); | |
| 23 double db = Point2d.L1(ref, pb); | |
| 24 if (da < db) return -1; | |
| 25 if (da > db) return +1; | |
| 26 return 0; | |
| 27 } | |
| 28 } | |
| 29 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8: | |
| 30 |