Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/geom/Lines.java @ 2230:59af81364eb1

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Improved the 'historical discharge' calculation: implemented findValueForW(). flys-artifacts/trunk@3872 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 01 Feb 2012 15:41:11 +0000
parents a7def20539fb
children a6fa128e4654
rev   line source
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1 package de.intevation.flys.geom;
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2
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3 import java.util.ArrayList;
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4 import java.util.List;
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5 import java.util.Iterator;
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6
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7 import java.awt.geom.Point2D;
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8 import java.awt.geom.Line2D;
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9
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10 import de.intevation.flys.artifacts.math.Linear;
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11
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12 import org.apache.log4j.Logger;
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13
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14 import gnu.trove.TDoubleArrayList;
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15
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16 public class Lines
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17 {
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18 private static Logger log = Logger.getLogger(Lines.class);
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19
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20 public static final double EPSILON = 1e-4;
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21
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22 public static enum Mode { UNDEF, WET, DRY };
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23
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24 protected Lines() {
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25 }
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26
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27 public static List<Line2D> fillWater(List<Point2D> points, double waterLevel) {
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28
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29 boolean debug = log.isDebugEnabled();
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30
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31 if (debug) {
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32 log.debug("fillWater");
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33 log.debug("----------------------------");
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34 }
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35
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36 List<Line2D> result = new ArrayList();
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37
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38 int N = points.size();
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39
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40 if (N == 0) {
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41 return result;
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42 }
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43
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44 if (N == 1) {
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45 Point2D p = points.get(0);
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46 // Only generate point if over water
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47 if (waterLevel > p.getY()) {
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48 result.add(new Line2D.Double(
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49 p.getX(), waterLevel,
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50 p.getX(), waterLevel));
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51 }
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52 return result;
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53 }
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54
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55 double minX = Double.MAX_VALUE;
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56 double minY = Double.MAX_VALUE;
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57 double maxX = -Double.MAX_VALUE;
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58 double maxY = -Double.MAX_VALUE;
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59
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60 // To ensure for sequences of equals x's that
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61 // the original index order is preserved.
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62 for (Point2D p: points) {
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63 double x = p.getX(), y = p.getY();
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64 if (x < minX) minX = x;
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65 if (x > maxX) maxX = x;
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66 if (y < minY) minY = y;
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67 if (y > maxY) maxY = y;
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68 }
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69
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70 if (minY > waterLevel) { // profile completely over water level
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71 log.debug("complete over water");
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72 return result;
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73 }
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74
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75 if (waterLevel > maxY) { // water floods profile
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76 log.debug("complete under water");
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77 result.add(new Line2D.Double(minX, waterLevel, maxX, waterLevel));
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78 return result;
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79 }
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80
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81 Mode mode = Mode.UNDEF;
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82
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83 double startX = minX;
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84
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85 for (int i = 1; i < N; ++i) {
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86 Point2D p1 = points.get(i-1);
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87 Point2D p2 = points.get(i);
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88
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89 if (p1.getY() < waterLevel && p2.getY() < waterLevel) {
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90 // completely under water
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91 if (debug) {
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92 log.debug("under water: " + p1 + " " + p2);
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93 }
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94 if (mode != Mode.WET) {
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95 startX = p1.getX();
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96 mode = Mode.WET;
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97 }
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98 continue;
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99 }
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100
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101 if (p1.getY() > waterLevel && p2.getY() > waterLevel) {
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102 if (debug) {
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103 log.debug("over water: " + p1 + " " + p2);
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104 }
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105 // completely over water
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106 if (mode == Mode.WET) {
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107 log.debug("over/wet");
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108 result.add(new Line2D.Double(
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109 startX, waterLevel,
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110 p1.getX(), waterLevel));
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111 }
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112 mode = Mode.DRY;
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113 continue;
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114 }
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115
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116 if (Math.abs(p1.getX() - p2.getX()) < EPSILON) {
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117 // vertical line
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118 switch (mode) {
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119 case WET:
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120 log.debug("vertical/wet");
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121 mode = Mode.DRY;
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122 result.add(new Line2D.Double(
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123 startX, waterLevel,
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124 p1.getX(), waterLevel));
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125 break;
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126 case DRY:
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127 log.debug("vertical/dry");
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128 mode = Mode.WET;
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129 startX = p2.getX();
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130 break;
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131 default: // UNDEF
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parents: 934
diff changeset
132 log.debug("vertical/undef");
933
34136924661b Generate water level lines for given cross section.
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parents:
diff changeset
133 if (p2.getY() < waterLevel) {
34136924661b Generate water level lines for given cross section.
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parents:
diff changeset
134 mode = Mode.WET;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
135 startX = p2.getX();
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
136 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
137 else {
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
138 mode = Mode.DRY;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
139 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
140 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
141 continue;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
142 }
34136924661b Generate water level lines for given cross section.
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parents:
diff changeset
143
938
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diff changeset
144 // check if waterlevel directly hits the vertices;
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diff changeset
145
bd3683453928 Debugged the water fill algorithm.
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parents: 934
diff changeset
146 boolean p1W = Math.abs(waterLevel - p1.getY()) < EPSILON;
bd3683453928 Debugged the water fill algorithm.
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parents: 934
diff changeset
147 boolean p2W = Math.abs(waterLevel - p2.getY()) < EPSILON;
bd3683453928 Debugged the water fill algorithm.
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parents: 934
diff changeset
148
bd3683453928 Debugged the water fill algorithm.
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parents: 934
diff changeset
149 if (p1W || p2W) {
bd3683453928 Debugged the water fill algorithm.
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parents: 934
diff changeset
150 if (debug) {
bd3683453928 Debugged the water fill algorithm.
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parents: 934
diff changeset
151 log.debug("water hits vertex: " + p1 + " " + p2 + " " + mode);
bd3683453928 Debugged the water fill algorithm.
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parents: 934
diff changeset
152 }
bd3683453928 Debugged the water fill algorithm.
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parents: 934
diff changeset
153 if (p1W && p2W) { // parallel to water -> dry
bd3683453928 Debugged the water fill algorithm.
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parents: 934
diff changeset
154 log.debug("water hits both vertices");
bd3683453928 Debugged the water fill algorithm.
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parents: 934
diff changeset
155 if (mode == Mode.WET) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
156 result.add(new Line2D.Double(
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
157 startX, waterLevel,
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
158 p1.getX(), waterLevel));
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
159 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
160 mode = Mode.DRY;
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
161 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
162 else if (p1W) { // p1 == waterlevel
bd3683453928 Debugged the water fill algorithm.
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parents: 934
diff changeset
163 log.debug("water hits first vertex");
bd3683453928 Debugged the water fill algorithm.
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parents: 934
diff changeset
164 if (p2.getY() > waterLevel) { // --> dry
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
165 if (mode == Mode.WET) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
166 result.add(new Line2D.Double(
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
167 startX, waterLevel,
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
168 p1.getX(), waterLevel));
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
169 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
170 mode = Mode.DRY;
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
171 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
172 else { // --> wet
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
173 if (mode != Mode.WET) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
174 startX = p1.getX();
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
175 mode = Mode.WET;
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
176 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
177 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
178 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
179 else { // p2 == waterlevel
bd3683453928 Debugged the water fill algorithm.
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parents: 934
diff changeset
180 log.debug("water hits second vertex");
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
181 if (p1.getY() > waterLevel) { // --> wet
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
182 if (mode != Mode.WET) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
183 startX = p2.getX();
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
184 mode = Mode.WET;
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
185 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
186 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
187 else { // --> dry
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
188 if (mode == Mode.WET) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
189 result.add(new Line2D.Double(
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
190 startX, waterLevel,
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
191 p2.getX(), waterLevel));
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
192 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
193 mode = Mode.DRY;
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
194 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
195 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
196 if (debug) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
197 log.debug("mode is now: " + mode);
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
198 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
199 continue;
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
200 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
201
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
202 // intersection case
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
203 double x = Linear.linear(
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
204 waterLevel,
938
bd3683453928 Debugged the water fill algorithm.
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parents: 934
diff changeset
205 p1.getY(), p2.getY(),
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
206 p1.getX(), p2.getX());
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
207
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
208 if (debug) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
209 log.debug("intersection p1:" + p1);
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
210 log.debug("intersection p2:" + p2);
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
211 log.debug("intersection at x: " + x);
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
212 }
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
213
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
214 switch (mode) {
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
215 case WET:
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
216 log.debug("intersect/wet");
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
217 mode = Mode.DRY;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
218 result.add(new Line2D.Double(
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
219 startX, waterLevel,
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
220 x, waterLevel));
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
221 break;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
222
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
223 case DRY:
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
224 log.debug("intersect/dry");
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
225 mode = Mode.WET;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
226 startX = x;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
227 break;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
228
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
229 default: // UNDEF
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
230 log.debug("intersect/undef");
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
231 if (p2.getY() > waterLevel) {
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
232 log.debug("intersect/undef/over");
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
233 mode = Mode.DRY;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
234 result.add(new Line2D.Double(
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
235 p1.getX(), waterLevel,
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
236 x, waterLevel));
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
237 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
238 else {
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
239 mode = Mode.WET;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
240 startX = x;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
241 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
242 } // switch mode
934
d0f3fea20f01 Fixed corner case.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 933
diff changeset
243 } // for all points p[i] and p[i-1]
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
244
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
245 if (mode == Mode.WET) {
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
246 result.add(new Line2D.Double(
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
247 startX, waterLevel,
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
248 maxX, waterLevel));
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
249 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
250
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
251 return result;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
252 }
1651
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
253
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
254 public static double [][] createWaterLines(
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
255 List<Point2D> points,
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
256 double waterlevel
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
257 ) {
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
258 List<Line2D> lines = fillWater(points, waterlevel);
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
259
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
260 TDoubleArrayList lxs = new TDoubleArrayList();
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
261 TDoubleArrayList lys = new TDoubleArrayList();
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
262
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
263 for (Iterator<Line2D> iter = lines.iterator(); iter.hasNext();) {
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
264 Line2D l = iter.next();
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
265 Point2D p1 = l.getP1();
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
266 Point2D p2 = l.getP2();
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
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267 lxs.add(p1.getX());
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268 lys.add(p1.getY());
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parents: 938
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269 lxs.add(p2.getX());
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parents: 938
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270 lys.add(p2.getY());
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parents: 938
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271 if (iter.hasNext()) {
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272 lxs.add(Double.NaN);
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parents: 938
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273 lys.add(Double.NaN);
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parents: 938
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274 }
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
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parents: 938
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275 }
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
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parents: 938
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276
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277 return new double [][] { lxs.toNativeArray(), lys.toNativeArray() };
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278 }
933
34136924661b Generate water level lines for given cross section.
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parents:
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279 }
34136924661b Generate water level lines for given cross section.
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parents:
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280 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org