Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/math/L1Comparator.java @ 468:7ba4c7222265

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Added ij-Index determination for horizontal-cross-sections. gnv-artifacts/trunk@531 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Tue, 12 Jan 2010 11:34:25 +0000
parents aec85d00d82c
children ab29e4ff2fda
rev   line source
361
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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1 package de.intevation.gnv.math;
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2
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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3 import java.util.Comparator;
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4
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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5 import com.vividsolutions.jts.geom.Coordinate;
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aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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7 /**
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8 * @author Sascha L. Teichmann
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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9 */
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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10 public class L1Comparator
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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11 implements Comparator
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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12 {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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13 private Coordinate ref;
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14
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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15 public L1Comparator(Coordinate ref) {
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16 this.ref = ref;
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17 }
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18
aec85d00d82c Added code to do 2D interpolations along a digitied track on the map.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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19 public int compare(Object a, Object b) {
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20 Coordinate pa = (Coordinate)a;
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21 Coordinate pb = (Coordinate)b;
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22 double da = Point2d.L1(ref, pa);
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23 double db = Point2d.L1(ref, pb);
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24 if (da < db) return -1;
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25 if (da > db) return +1;
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26 return 0;
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27 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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28 }
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29 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8:
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30
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