annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/geom/Lines.java @ 5361:836643cc101d

insert links to wiki anchors
author Bettina Gruenbauer <bettina@intevation.de>
date Thu, 21 Mar 2013 16:29:11 +0100
parents ed07dd55f487
children
rev   line source
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ed07dd55f487 Fixed various bugs (package declarations, moved classes to correct places).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2688
diff changeset
1 package de.intevation.flys.artifacts.geom;
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2
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a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
3 import java.util.ArrayList;
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4 import java.util.List;
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a7def20539fb flys/issue317: Removed dependency from cross section demo app.
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parents: 938
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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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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
14 import gnu.trove.TDoubleArrayList;
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
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parents: 938
diff changeset
15
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
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16 /**
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
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17 * Utility to create lines (intersect water with cross-section etc).
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
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parents: 2650
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18 */
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19 public class Lines
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20 {
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21 private static Logger log = Logger.getLogger(Lines.class);
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22
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23 public static final double EPSILON = 1e-4;
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25 public static enum Mode { UNDEF, WET, DRY };
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26
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parents: 2679
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27
b94b367d8b4d Minor refactoring, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2679
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28 /** Never instantiate Lines, use static functions instead. */
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29 protected Lines() {
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30 }
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31
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32
0143b44631cc Beginnings of mittlere hoehe calculation.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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33 /**
0143b44631cc Beginnings of mittlere hoehe calculation.
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34 * Calculate area of polygon with four vertices.
0143b44631cc Beginnings of mittlere hoehe calculation.
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35 * @return area of polygon with four vertices.
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36 */
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37 public static double area(Point2D p1, Point2D p2, Point2D p3, Point2D p4) {
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38 double[] x = new double[] {p1.getX(), p2.getX(), p3.getX(), p4.getX(), p1.getX() };
99350b06a780 Improved middle height calculations.
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39 double[] y = new double[] {p1.getY(), p2.getY(), p3.getY(), p4.getY(), p1.getY() };
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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40 double area = 0d;
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41 for (int i=0; i <4; i++) {
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42 area += (x[i] * y[i+1]) - (x[i+1] * y[i]);
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parents: 2652
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43 }
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44 return Math.abs(area * 0.5d);
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parents: 2652
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45 }
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46
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parents: 2652
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47
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
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48 /**
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
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49 * Calculate the 'length' of the given lines.
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50 * @param lines lines of which to calculate length.
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parents: 2650
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51 */
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parents: 1651
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52 public static double length(List<Line2D> lines) {
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53 double sum = 0d;
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parents: 1651
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54 for (Line2D line: lines) {
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55 double xDiff = line.getX1() - line.getX2();
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parents: 1651
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56 double yDiff = line.getY1() - line.getY2();
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parents: 1651
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57 sum += Math.sqrt(xDiff*xDiff + yDiff*yDiff);
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58 }
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59 return sum;
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60 }
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61
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parents: 2673
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62
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parents: 2673
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63 /** List of lines and a double-precision area. */
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parents: 2673
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64 private static class ListWithArea {
2be59d5b342c Added and respect theme prop whether or not to display (not yet calculated) middle height.
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parents: 2673
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65 public List<Line2D> lines;
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parents: 2673
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66 public double area;
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parents: 2673
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67 public ListWithArea(List<Line2D> lines, double area) {
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parents: 2673
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68 this.lines = lines;
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69 this.area = area;
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70 }
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71 }
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72
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73
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74 /**
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75 * For a cross section given as points and a waterlevel (in meters),
22c8a9b4de31 Minimal doc, TODO.
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parents: 2674
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76 * create a set of lines that represent the water surface, assuming it
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77 * is distributed horizontally equally.
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78 * @param points the points describing the river bed.
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79 * @param waterLevel the height of the horizontal water line.
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80 * @return A list of Lines representing the water surface and the
22c8a9b4de31 Minimal doc, TODO.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2674
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81 * calculated area between water surface and river bed.
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parents: 2674
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82 */
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83 public static ListWithArea fillWater(List<Point2D> points, double waterLevel) {
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84
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85 boolean debug = log.isDebugEnabled();
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86
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87 if (debug) {
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88 log.debug("fillWater");
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89 log.debug("----------------------------");
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90 }
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91
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92 List<Line2D> result = new ArrayList();
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93
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94 int N = points.size();
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95
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96 if (N == 0) {
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97 return new ListWithArea(result, 0d);
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98 }
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99
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100 if (N == 1) {
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101 Point2D p = points.get(0);
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102 // Only generate point if over profile
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103 if (waterLevel > p.getY()) {
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104 result.add(new Line2D.Double(
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105 p.getX(), waterLevel,
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106 p.getX(), waterLevel));
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107 }
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108 // TODO continue calculating area.
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109 return new ListWithArea(result, 0d);
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110 }
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111
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112 double minX = Double.MAX_VALUE;
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113 double minY = Double.MAX_VALUE;
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114 double maxX = -Double.MAX_VALUE;
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115 double maxY = -Double.MAX_VALUE;
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116
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117 // To ensure for sequences of equals x's that
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118 // the original index order is preserved.
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119 for (Point2D p: points) {
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120 double x = p.getX(), y = p.getY();
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121 if (x < minX) minX = x;
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122 if (x > maxX) maxX = x;
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123 if (y < minY) minY = y;
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124 if (y > maxY) maxY = y;
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125 }
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126
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127 if (minY > waterLevel) { // profile completely over water level
938
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
128 log.debug("complete over water");
2674
2be59d5b342c Added and respect theme prop whether or not to display (not yet calculated) middle height.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2673
diff changeset
129 return new ListWithArea(result, 0d);
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
130 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
131
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
132 if (waterLevel > maxY) { // water floods profile
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
133 log.debug("complete under water");
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
134 result.add(new Line2D.Double(minX, waterLevel, maxX, waterLevel));
2674
2be59d5b342c Added and respect theme prop whether or not to display (not yet calculated) middle height.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2673
diff changeset
135 return new ListWithArea(result, 0d);
933
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
2673
0143b44631cc Beginnings of mittlere hoehe calculation.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2652
diff changeset
138 // Water is sometimes above, sometimes under profile.
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
139 Mode mode = Mode.UNDEF;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
140
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
141 double startX = minX;
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
142
2673
0143b44631cc Beginnings of mittlere hoehe calculation.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2652
diff changeset
143 double area = 0d;
0143b44631cc Beginnings of mittlere hoehe calculation.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2652
diff changeset
144 // Walking along the profile.
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
145 for (int i = 1; i < N; ++i) {
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
146 Point2D p1 = points.get(i-1);
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
147 Point2D p2 = points.get(i);
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
148
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
149 if (p1.getY() < waterLevel && p2.getY() < waterLevel) {
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
150 // completely under water
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
151 if (debug) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
152 log.debug("under water: " + p1 + " " + p2);
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
153 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
154 if (mode != Mode.WET) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
155 startX = p1.getX();
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
156 mode = Mode.WET;
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
157 }
2673
0143b44631cc Beginnings of mittlere hoehe calculation.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2652
diff changeset
158 area += area(p1, p2,
0143b44631cc Beginnings of mittlere hoehe calculation.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2652
diff changeset
159 new Point2D.Double(p2.getX(), waterLevel),
0143b44631cc Beginnings of mittlere hoehe calculation.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2652
diff changeset
160 new Point2D.Double(p1.getX(), waterLevel));
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
161 continue;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
162 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
163
2673
0143b44631cc Beginnings of mittlere hoehe calculation.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2652
diff changeset
164 // TODO trigger area calculation
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
165 if (p1.getY() > waterLevel && p2.getY() > waterLevel) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
166 if (debug) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
167 log.debug("over water: " + p1 + " " + p2);
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
168 }
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
169 // completely over water
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
170 if (mode == Mode.WET) {
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
171 log.debug("over/wet");
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
172 result.add(new Line2D.Double(
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
173 startX, waterLevel,
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
174 p1.getX(), waterLevel));
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
175 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
176 mode = Mode.DRY;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
177 continue;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
178 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
179
2673
0143b44631cc Beginnings of mittlere hoehe calculation.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2652
diff changeset
180 // TODO trigger area calculation
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
181 if (Math.abs(p1.getX() - p2.getX()) < EPSILON) {
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
182 // vertical line
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
183 switch (mode) {
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
184 case WET:
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
185 log.debug("vertical/wet");
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
186 mode = Mode.DRY;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
187 result.add(new Line2D.Double(
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
188 startX, waterLevel,
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
189 p1.getX(), waterLevel));
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
190 break;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
191 case DRY:
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
192 log.debug("vertical/dry");
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
193 mode = Mode.WET;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
194 startX = p2.getX();
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
195 break;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
196 default: // UNDEF
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
197 log.debug("vertical/undef");
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
198 if (p2.getY() < waterLevel) {
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
199 mode = Mode.WET;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
200 startX = p2.getX();
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
201 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
202 else {
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
203 mode = Mode.DRY;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
204 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
205 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
206 continue;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
207 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
208
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
209 // check if waterlevel directly hits the vertices;
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
210
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
211 boolean p1W = Math.abs(waterLevel - p1.getY()) < EPSILON;
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
212 boolean p2W = Math.abs(waterLevel - p2.getY()) < EPSILON;
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
213
2673
0143b44631cc Beginnings of mittlere hoehe calculation.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2652
diff changeset
214 // TODO trigger area calculation
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
215 if (p1W || p2W) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
216 if (debug) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
217 log.debug("water hits vertex: " + p1 + " " + p2 + " " + mode);
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
218 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
219 if (p1W && p2W) { // parallel to water -> dry
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
220 log.debug("water hits both vertices");
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
221 if (mode == Mode.WET) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
222 result.add(new Line2D.Double(
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
223 startX, waterLevel,
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
224 p1.getX(), waterLevel));
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
225 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
226 mode = Mode.DRY;
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
227 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
228 else if (p1W) { // p1 == waterlevel
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
229 log.debug("water hits first vertex");
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
230 if (p2.getY() > waterLevel) { // --> dry
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
231 if (mode == Mode.WET) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
232 result.add(new Line2D.Double(
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
233 startX, waterLevel,
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
234 p1.getX(), waterLevel));
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
235 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
236 mode = Mode.DRY;
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
237 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
238 else { // --> wet
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
239 if (mode != Mode.WET) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
240 startX = p1.getX();
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
241 mode = Mode.WET;
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
242 }
2687
dc67ddd4a34c Progressed area calculation while line computation a bit.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2681
diff changeset
243 area += area(p1, p2,
dc67ddd4a34c Progressed area calculation while line computation a bit.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2681
diff changeset
244 new Point2D.Double(p2.getX(), waterLevel),
dc67ddd4a34c Progressed area calculation while line computation a bit.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2681
diff changeset
245 new Point2D.Double(p2.getX(), waterLevel));
938
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
246 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
247 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
248 else { // p2 == waterlevel
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
249 log.debug("water hits second vertex");
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
250 if (p1.getY() > waterLevel) { // --> wet
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
251 if (mode != Mode.WET) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
252 startX = p2.getX();
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
253 mode = Mode.WET;
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
254 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
255 }
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
256 else { // --> dry
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
257 if (mode == Mode.WET) {
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
258 result.add(new Line2D.Double(
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
259 startX, waterLevel,
bd3683453928 Debugged the water fill algorithm.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 934
diff changeset
260 p2.getX(), waterLevel));
bd3683453928 Debugged the water fill algorithm.
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261 }
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262 mode = Mode.DRY;
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263 area += area(p1, p2,
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264 new Point2D.Double(p1.getX(), waterLevel),
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265 new Point2D.Double(p1.getX(), waterLevel));
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266 }
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267 }
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268 if (debug) {
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269 log.debug("mode is now: " + mode);
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270 }
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271 continue;
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272 }
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273
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274 // TODO trigger area calculation
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275 // intersection case
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276 double x = Linear.linear(
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277 waterLevel,
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278 p1.getY(), p2.getY(),
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279 p1.getX(), p2.getX());
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280
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281 if (debug) {
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282 log.debug("intersection p1:" + p1);
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283 log.debug("intersection p2:" + p2);
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284 log.debug("intersection at x: " + x);
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285 }
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286
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287 // Add area of that part of intersection that is 'wet'.
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288 if (p1.getY() > waterLevel) {
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diff changeset
289 area += area(new Point2D.Double(x, waterLevel),
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290 p2,
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291 new Point2D.Double(p2.getX(), waterLevel),
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292 new Point2D.Double(x, waterLevel));
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293 }
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294 else {
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diff changeset
295 area += area(new Point2D.Double(x, waterLevel),
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diff changeset
296 p1,
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297 new Point2D.Double(p1.getX(), waterLevel),
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298 new Point2D.Double(x, waterLevel));
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299 }
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300
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301 switch (mode) {
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302 case WET:
938
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303 log.debug("intersect/wet");
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304 mode = Mode.DRY;
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diff changeset
305 result.add(new Line2D.Double(
34136924661b Generate water level lines for given cross section.
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diff changeset
306 startX, waterLevel,
34136924661b Generate water level lines for given cross section.
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diff changeset
307 x, waterLevel));
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
308 break;
34136924661b Generate water level lines for given cross section.
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diff changeset
309
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
310 case DRY:
938
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311 log.debug("intersect/dry");
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312 mode = Mode.WET;
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diff changeset
313 startX = x;
34136924661b Generate water level lines for given cross section.
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diff changeset
314 break;
34136924661b Generate water level lines for given cross section.
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diff changeset
315
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diff changeset
316 default: // UNDEF
938
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317 log.debug("intersect/undef");
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diff changeset
318 if (p2.getY() > waterLevel) {
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319 log.debug("intersect/undef/over");
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320 mode = Mode.DRY;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
321 result.add(new Line2D.Double(
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
322 p1.getX(), waterLevel,
34136924661b Generate water level lines for given cross section.
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diff changeset
323 x, waterLevel));
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
324 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
325 else {
34136924661b Generate water level lines for given cross section.
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parents:
diff changeset
326 mode = Mode.WET;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
327 startX = x;
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
328 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
329 } // switch mode
934
d0f3fea20f01 Fixed corner case.
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diff changeset
330 } // for all points p[i] and p[i-1]
933
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parents:
diff changeset
331
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
332 if (mode == Mode.WET) {
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
333 result.add(new Line2D.Double(
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
334 startX, waterLevel,
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
335 maxX, waterLevel));
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
336 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
337
2674
2be59d5b342c Added and respect theme prop whether or not to display (not yet calculated) middle height.
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diff changeset
338 return new ListWithArea(result, area);
933
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parents:
diff changeset
339 }
1651
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
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diff changeset
340
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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diff changeset
341
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
342 /**
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
343 * Class holding points that form lines and the calculated length.
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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diff changeset
344 */
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
345 public static class LineData {
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
346 public double [][] points;
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
347 public double width;
2673
0143b44631cc Beginnings of mittlere hoehe calculation.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2652
diff changeset
348 public double area;
0143b44631cc Beginnings of mittlere hoehe calculation.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2652
diff changeset
349 public LineData(double[][] points, double width, double area) {
2652
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
350 this.points = points;
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
351 this.width = width;
2673
0143b44631cc Beginnings of mittlere hoehe calculation.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2652
diff changeset
352 this.area = area;
2652
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
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parents: 2650
diff changeset
353 }
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
354 }
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
355
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
356
2681
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2679
diff changeset
357 /** Return length of a single line. */
b94b367d8b4d Minor refactoring, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2679
diff changeset
358 public static double lineLength(Line2D line) {
b94b367d8b4d Minor refactoring, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2679
diff changeset
359 double xDiff = line.getX1() - line.getX2();
b94b367d8b4d Minor refactoring, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2679
diff changeset
360 double yDiff = line.getY1() - line.getY2();
b94b367d8b4d Minor refactoring, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2679
diff changeset
361 return Math.sqrt(xDiff*xDiff + yDiff*yDiff);
b94b367d8b4d Minor refactoring, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2679
diff changeset
362 }
b94b367d8b4d Minor refactoring, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2679
diff changeset
363
b94b367d8b4d Minor refactoring, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2679
diff changeset
364
b94b367d8b4d Minor refactoring, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2679
diff changeset
365 /**
b94b367d8b4d Minor refactoring, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2679
diff changeset
366 * @param points the riverbed.
b94b367d8b4d Minor refactoring, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2679
diff changeset
367 */
2652
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
368 public static LineData createWaterLines(
1651
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
369 List<Point2D> points,
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
370 double waterlevel
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
371 ) {
2674
2be59d5b342c Added and respect theme prop whether or not to display (not yet calculated) middle height.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2673
diff changeset
372 ListWithArea listAndArea = fillWater(points, waterlevel);
2be59d5b342c Added and respect theme prop whether or not to display (not yet calculated) middle height.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2673
diff changeset
373 List<Line2D> lines = listAndArea.lines;
1651
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
374
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
375 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
376 TDoubleArrayList lys = new TDoubleArrayList();
2652
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
377 double linesLength = 0.0f;
1651
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
378
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
379 for (Iterator<Line2D> iter = lines.iterator(); iter.hasNext();) {
2652
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
380 Line2D line = iter.next();
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
381 Point2D p1 = line.getP1();
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
382 Point2D p2 = line.getP2();
1651
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
383 lxs.add(p1.getX());
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
384 lys.add(p1.getY());
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
385 lxs.add(p2.getX());
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
386 lys.add(p2.getY());
2652
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
387
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
388 // Length calculation.
2681
b94b367d8b4d Minor refactoring, docs.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2679
diff changeset
389 linesLength += lineLength(line);
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9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
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390
1651
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
391 if (iter.hasNext()) {
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
392 lxs.add(Double.NaN);
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
393 lys.add(Double.NaN);
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
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394 }
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
395 }
a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
396
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9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
397 return new LineData(
9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
398 new double [][] { lxs.toNativeArray(), lys.toNativeArray() },
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2be59d5b342c Added and respect theme prop whether or not to display (not yet calculated) middle height.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2673
diff changeset
399 linesLength, listAndArea.area
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9d2a06c3a134 Added DataType for lines that also stores width, use it. Added HasLabel interface for some series.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 2650
diff changeset
400 );
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a7def20539fb flys/issue317: Removed dependency from cross section demo app.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 938
diff changeset
401 }
933
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
402 }
34136924661b Generate water level lines for given cross section.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
403 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

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