Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/WQ.java @ 1678:03fbf1b30e72

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Removed code duplication of guessWaterIncreasing() flys-artifacts/trunk@2895 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Wed, 05 Oct 2011 13:16:44 +0000
parents 821aaceb2776
children bda04ae1154f
rev   line source
726
cbaa3ca86f2f Added base class WQ for WQKms.
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1 package de.intevation.flys.artifacts.model;
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2
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03fbf1b30e72 Removed code duplication of guessWaterIncreasing()
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3 import de.intevation.flys.utils.DataUtil;
03fbf1b30e72 Removed code duplication of guessWaterIncreasing()
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4
726
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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
726
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9 public class WQ
925
0cb1a70b8b92 Added the math needed to calculate "W-Differenzen" in "Laengsschnitten"
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10 extends NamedObjectImpl
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11 {
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12 private static Logger logger = Logger.getLogger(WQ.class);
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13
925
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14 // TODO: s/w/ws/g
726
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15 protected TDoubleArrayList w;
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16
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17 // TODO: s/q/qs/g
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18 protected TDoubleArrayList q;
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19
cbaa3ca86f2f Added base class WQ for WQKms.
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20 public WQ() {
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21 this("");
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22 }
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23
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24 public WQ(String name) {
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25 w = new TDoubleArrayList();
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26 q = new TDoubleArrayList();
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27 }
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28
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29 public WQ(int capacity) {
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30 this(capacity, "");
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31 }
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32
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33
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34 public WQ(int capacity, String name) {
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35 super(name);
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36 w = new TDoubleArrayList(capacity);
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37 q = new TDoubleArrayList(capacity);
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38 }
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39
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40 public WQ(double [] qs, double [] ws) {
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41 this(qs, ws, "");
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42 }
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43
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44 public WQ(double [] qs, double [] ws, String name) {
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45 super(name);
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46 w = new TDoubleArrayList(ws);
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47 q = new TDoubleArrayList(qs);
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48 }
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49
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50 public void add(double w, double q) {
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51 this.w.add(w);
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52 this.q.add(q);
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53 }
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54
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55 public int size() {
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56 return w.size();
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57 }
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58
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59 public double getW(int idx) {
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60 return w.getQuick(idx);
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61 }
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62
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63 public double getQ(int idx) {
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64 return q.getQuick(idx);
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65 }
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66
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67 public double [] get(int idx) {
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68 return get(idx, new double [2]);
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69 }
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70
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71 public double [] get(int idx, double [] dst) {
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72 dst[0] = w.getQuick(idx);
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73 dst[1] = q.getQuick(idx);
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74 return dst;
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75 }
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76
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77 public double [] getWs() {
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78 return w.toNativeArray();
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79 }
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80
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81 public double [] getQs() {
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82 return q.toNativeArray();
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83 }
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84
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85 public static void removeNaNs(TDoubleArrayList [] arrays) {
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86
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87 int dest = 0;
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88
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89 int A = arrays.length;
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90 int N = arrays[0].size();
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91
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92 OUTER: for (int i = 0; i < N; ++i) {
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93 for (int j = 0; j < A; ++j) {
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94 TDoubleArrayList a = arrays[j];
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95 double v = a.getQuick(i);
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96 if (Double.isNaN(v)) {
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97 continue OUTER;
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98 }
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99 a.setQuick(dest, v);
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100 }
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101 ++dest;
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102 }
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103
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104 if (dest < N) {
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105 for (int i = 0; i < A; ++i) {
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106 arrays[i].remove(dest, N-dest);
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107 }
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108 }
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109 }
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110
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111 public void removeNaNs() {
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112 removeNaNs(new TDoubleArrayList [] { w, q });
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113 }
744
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114
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115 public boolean guessWaterIncreasing() {
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116 return guessWaterIncreasing(0.05f);
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117 }
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118
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119 public boolean guessWaterIncreasing(float factor) {
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120 return DataUtil.guessWaterIncreasing(w, factor);
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121 }
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122
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123 public int [] longestIncreasingWRangeIndices() {
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124 return longestIncreasingWRangeIndices(new int[2]);
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125 }
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126
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127 public int [] longestIncreasingWRangeIndices(int [] bounds) {
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128
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129 int N = size();
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130 int start = 0;
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131 int stop = 0;
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132
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133 double lastW = Double.MAX_VALUE;
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134
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135 for (int i = 0; i < N; ++i) {
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136 double v = w.getQuick(i);
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137 if (v <= lastW) {
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138 if (stop-start > bounds[1]-bounds[0]) {
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139 bounds[0] = start;
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140 bounds[1] = stop;
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141 if (logger.isDebugEnabled()) {
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142 logger.debug("new range: " +
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143 bounds[0] + " - " + bounds[1] + " (" +
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144 w.getQuick(bounds[0]) + ", " +
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145 w.getQuick(bounds[1]) + ")");
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146
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147 }
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148 }
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149 start = stop = i;
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150 }
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151 else {
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152 stop = i;
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153 }
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154 lastW = v;
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155 }
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156
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157 if (stop-start > bounds[1]-bounds[0]) {
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158 bounds[0] = start;
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159 bounds[1] = stop;
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160 if (logger.isDebugEnabled()) {
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161 logger.debug("new range @end: " +
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162 bounds[0] + " - " + bounds[1] + " (" +
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163 w.getQuick(bounds[0]) + ", " +
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164 w.getQuick(bounds[1]) + ")");
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165
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166 }
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167 }
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168
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169 return bounds;
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170 }
726
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171 }
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172 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org