Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/W.java @ 4241:49cb65d5932d

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Improved the historical discharge calculation. The calculation now creates new HistoricalWQKms (new subclass of WQKms). Those WQKms are used to create new facets from (new) type 'HistoricalDischargeCurveFacet'. The chart generator is improved to support those facets.
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 24 Oct 2012 14:34:35 +0200
parents 53d954973610
children bcf25d8c183e
rev   line source
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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 ws = new TDoubleArrayList();
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18 }
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19
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20 public W(String name) {
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21 super(name);
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22 ws = new TDoubleArrayList();
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23 }
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24
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25 public W(int capacity) {
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26 this(capacity, "");
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27 }
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28
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29 public W(int capacity, String name) {
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30 super(name);
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31 ws = new TDoubleArrayList(capacity);
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32 }
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33
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34 public void add(double value) {
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35 ws.add(value);
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36 }
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37
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38 public int size() {
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39 return ws.size();
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40 }
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41
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42 public double getW(int idx) {
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43 return ws.getQuick(idx);
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44 }
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45
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46 public double [] getWs() {
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47 return ws.toNativeArray();
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48 }
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49
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50 public double [] get(int idx) {
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51 return get(idx, new double [1]);
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52 }
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53
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54 public double [] get(int idx, double [] dst) {
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55 dst[0] = ws.getQuick(idx);
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56 return dst;
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57 }
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58
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59 public double minWs() {
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60 return ws.min();
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61 }
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62
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63 public static void removeNaNs(TDoubleArrayList [] arrays) {
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64
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65 int dest = 0;
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66
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67 int A = arrays.length;
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68 int N = arrays[0].size();
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69
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70 OUTER: for (int i = 0; i < N; ++i) {
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71 for (int j = 0; j < A; ++j) {
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72 TDoubleArrayList a = arrays[j];
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73 double v = a.getQuick(i);
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74 if (Double.isNaN(v)) {
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75 continue OUTER;
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76 }
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77 a.setQuick(dest, v);
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78 }
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79 ++dest;
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80 }
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81
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82 if (dest < N) {
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83 for (int i = 0; i < A; ++i) {
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84 arrays[i].remove(dest, N-dest);
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85 }
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86 }
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87 }
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88
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89 public void removeNaNs() {
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90 removeNaNs(new TDoubleArrayList [] { ws });
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91 }
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92
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93 public boolean guessWaterIncreasing() {
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94 return guessWaterIncreasing(0.05f);
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95 }
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96
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97 public boolean guessWaterIncreasing(float factor) {
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98 return DataUtil.guessWaterIncreasing(ws, factor);
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99 }
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100
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101 public int [] longestIncreasingWRangeIndices() {
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102 return longestIncreasingWRangeIndices(new int[2]);
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103 }
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104
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105 public int [] longestIncreasingWRangeIndices(int [] bounds) {
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106
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107 int N = size();
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108 int start = 0;
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109 int stop = 0;
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110
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111 double lastW = Double.MAX_VALUE;
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112
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113 for (int i = 0; i < N; ++i) {
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114 double v = ws.getQuick(i);
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115 if (v <= lastW) {
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116 if (stop-start > bounds[1]-bounds[0]) {
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117 bounds[0] = start;
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118 bounds[1] = stop;
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119 if (log.isDebugEnabled()) {
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120 log.debug("new range: " +
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121 bounds[0] + " - " + bounds[1] + " (" +
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122 ws.getQuick(bounds[0]) + ", " +
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123 ws.getQuick(bounds[1]) + ")");
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124
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125 }
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126 }
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127 start = stop = i;
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128 }
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129 else {
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130 stop = i;
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131 }
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132 lastW = v;
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133 }
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134
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135 if (stop-start > bounds[1]-bounds[0]) {
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136 bounds[0] = start;
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137 bounds[1] = stop;
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138 if (log.isDebugEnabled()) {
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139 log.debug("new range @end: " +
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140 bounds[0] + " - " + bounds[1] + " (" +
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141 ws.getQuick(bounds[0]) + ", " +
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142 ws.getQuick(bounds[1]) + ")");
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143 }
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144 }
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145
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146 return bounds;
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147 }
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148 }
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149 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org