Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/math/Point2d.java @ 469:62fc63d0f71d

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Added a new State in Product Verticalprofile in Timeseriespoints. Now it will be displayed the Years where measurements happened and than only the dates of the chosen Year will be fetched and displayed. gnv-artifacts/trunk@532 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Tue, 12 Jan 2010 12:42:53 +0000
parents 422275fc9927
children b248531fa20b
rev   line source
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1 package de.intevation.gnv.math;
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2
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3 import java.util.Comparator;
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4
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5 import com.vividsolutions.jts.geom.Envelope;
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6 import com.vividsolutions.jts.geom.Coordinate;
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7
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8 /**
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9 * @author Sascha L. Teichmann
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10 */
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11 public class Point2d
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12 extends Coordinate
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13 {
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14 public static final double EPSILON = 1e-3d;
361
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15
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16 public static final Comparator X_COMPARATOR = new Comparator() {
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17 public int compare(Object a, Object b) {
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18 double xa = ((Coordinate)a).x;
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19 double xb = ((Coordinate)b).x;
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20 if (xa < xb) return -1;
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21 if (xa > xb) return +1;
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22 return 0;
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23 }
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24 };
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25
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26 public static final Comparator Y_COMPARATOR = new Comparator() {
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27 public int compare(Object a, Object b) {
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28 double ya = ((Coordinate)a).y;
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29 double yb = ((Coordinate)b).y;
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30 if (ya < yb) return -1;
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31 if (ya > yb) return +1;
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32 return 0;
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33 }
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34 };
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35
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36 public static class InverseL1Comparator
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37 implements Comparator
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38 {
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39 private Point2d ref;
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40
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41 public InverseL1Comparator(Point2d ref) {
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42 this.ref = ref;
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43 }
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44
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45 public int compare(Object a, Object b) {
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46 Point2d pa = (Point2d)a;
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47 Point2d pb = (Point2d)b;
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48 double da = ref.L1(pa);
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49 double db = ref.L1(pb);
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50 if (da < db) return -1;
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51 if (da > db) return +1;
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52 return 0;
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53 }
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54 } // class InverseL1Comparator
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55
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56 public int i;
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57 public int j;
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58
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59 public Point2d() {
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60 }
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61
431
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62 public Point2d(double x, double y, int i, int j) {
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63 super(x, y);
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64 this.i = i;
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65 this.j = j;
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66 }
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67
361
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68 public Point2d(double x, double y, double z, int i, int j) {
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69 super(x, y, z);
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70 this.i = i;
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71 this.j = j;
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72 }
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73
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74
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75 public double L1(Point2d other) {
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76 return L1(this, other);
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77 }
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78
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79 public static double L1(Coordinate a, Coordinate b) {
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80 return Math.abs(a.x - b.x) + Math.abs(a.y - b.y);
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81 }
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82
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83 public Envelope envelope() {
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84 return envelope(EPSILON);
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85 }
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86
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87 public Envelope envelope(double epsilon) {
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88 return new Envelope(
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89 x-epsilon, x+epsilon,
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90 y-epsilon, y+epsilon);
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91 }
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92
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93 public boolean hasIGap(Point2d other) {
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94 return Math.abs(i - other.i) > 1;
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95 }
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96
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97 public boolean hasJGap(Point2d other) {
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98 return Math.abs(j - other.j) > 1;
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99 }
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100 }
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101 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8:
http://dive4elements.wald.intevation.org