Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/W.java @ 2198:672a41efe222

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"Bezugslinienverfahren": Replaced normalized curve generation with a better and needed solution. flys-artifacts/trunk@3814 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sat, 28 Jan 2012 12:50:03 +0000
parents 5ff481ab24a1
children 53d954973610
rev   line source
2182
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1 package de.intevation.flys.artifacts.model;
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2
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3 import de.intevation.flys.utils.DataUtil;
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4
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5 import gnu.trove.TDoubleArrayList;
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6
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7 import org.apache.log4j.Logger;
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8
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9 public class W
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10 extends NamedObjectImpl
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11 {
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12 private static Logger log = Logger.getLogger(W.class);
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13
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14 protected TDoubleArrayList ws;
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15
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16 public W() {
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17 }
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18
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19 public W(String name) {
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20 super(name);
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21 }
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22
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23 public W(int capacity) {
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24 this(capacity, "");
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25 }
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26
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27 public W(int capacity, String name) {
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28 super(name);
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29 ws = new TDoubleArrayList(capacity);
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30 }
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31
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32 public void add(double value) {
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33 ws.add(value);
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34 }
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35
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36 public int size() {
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37 return ws.size();
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38 }
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39
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40 public double getW(int idx) {
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41 return ws.getQuick(idx);
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42 }
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43
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44 public double [] getWs() {
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45 return ws.toNativeArray();
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46 }
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47
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48 public double [] get(int idx) {
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49 return get(idx, new double [1]);
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50 }
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51
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52 public double [] get(int idx, double [] dst) {
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53 dst[0] = ws.getQuick(idx);
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54 return dst;
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55 }
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56
2198
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57 public double minWs() {
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58 return ws.min();
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59 }
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60
2182
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61 public static void removeNaNs(TDoubleArrayList [] arrays) {
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62
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63 int dest = 0;
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64
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65 int A = arrays.length;
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66 int N = arrays[0].size();
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67
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68 OUTER: for (int i = 0; i < N; ++i) {
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69 for (int j = 0; j < A; ++j) {
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70 TDoubleArrayList a = arrays[j];
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71 double v = a.getQuick(i);
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72 if (Double.isNaN(v)) {
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73 continue OUTER;
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74 }
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75 a.setQuick(dest, v);
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76 }
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77 ++dest;
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78 }
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79
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80 if (dest < N) {
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81 for (int i = 0; i < A; ++i) {
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82 arrays[i].remove(dest, N-dest);
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83 }
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84 }
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85 }
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86
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87 public void removeNaNs() {
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88 removeNaNs(new TDoubleArrayList [] { ws });
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89 }
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90
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91 public boolean guessWaterIncreasing() {
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92 return guessWaterIncreasing(0.05f);
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93 }
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94
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95 public boolean guessWaterIncreasing(float factor) {
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96 return DataUtil.guessWaterIncreasing(ws, factor);
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97 }
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98
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99 public int [] longestIncreasingWRangeIndices() {
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100 return longestIncreasingWRangeIndices(new int[2]);
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101 }
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102
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103 public int [] longestIncreasingWRangeIndices(int [] bounds) {
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104
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105 int N = size();
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106 int start = 0;
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107 int stop = 0;
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108
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109 double lastW = Double.MAX_VALUE;
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110
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111 for (int i = 0; i < N; ++i) {
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112 double v = ws.getQuick(i);
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113 if (v <= lastW) {
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114 if (stop-start > bounds[1]-bounds[0]) {
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115 bounds[0] = start;
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116 bounds[1] = stop;
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117 if (log.isDebugEnabled()) {
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118 log.debug("new range: " +
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119 bounds[0] + " - " + bounds[1] + " (" +
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120 ws.getQuick(bounds[0]) + ", " +
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121 ws.getQuick(bounds[1]) + ")");
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122
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123 }
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124 }
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125 start = stop = i;
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126 }
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127 else {
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128 stop = i;
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129 }
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130 lastW = v;
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131 }
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132
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133 if (stop-start > bounds[1]-bounds[0]) {
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134 bounds[0] = start;
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135 bounds[1] = stop;
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136 if (log.isDebugEnabled()) {
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137 log.debug("new range @end: " +
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138 bounds[0] + " - " + bounds[1] + " (" +
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139 ws.getQuick(bounds[0]) + ", " +
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140 ws.getQuick(bounds[1]) + ")");
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141 }
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142 }
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143
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144 return bounds;
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145 }
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146 }
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147 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org