Mercurial > dive4elements > gnv-client
diff 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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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gnv-artifacts/src/main/java/de/intevation/gnv/math/L1Comparator.java Tue Dec 15 22:25:53 2009 +0000 @@ -0,0 +1,30 @@ +package de.intevation.gnv.math; + +import java.util.Comparator; + +import com.vividsolutions.jts.geom.Coordinate; + +/** + * @author Sascha L. Teichmann + */ +public class L1Comparator +implements Comparator +{ + private Coordinate ref; + + public L1Comparator(Coordinate ref) { + this.ref = ref; + } + + public int compare(Object a, Object b) { + Coordinate pa = (Coordinate)a; + Coordinate pb = (Coordinate)b; + double da = Point2d.L1(ref, pa); + double db = Point2d.L1(ref, pb); + if (da < db) return -1; + if (da > db) return +1; + return 0; + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8: +