Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/W.java @ 7650:d24d95b0e1f9

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author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Thu, 05 Dec 2013 17:33:02 +0100
parents 3c4efd4b2c19
children 839032ac1523
rev   line source
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.artifacts.model;
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10
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11 import org.dive4elements.river.utils.DataUtil;
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12 import org.dive4elements.river.utils.DoubleUtil;
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13
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14 import gnu.trove.TDoubleArrayList;
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15
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16 import org.apache.log4j.Logger;
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17
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18 public class W
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19 extends NamedObjectImpl
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20 {
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21 private static Logger log = Logger.getLogger(W.class);
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22
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23 protected TDoubleArrayList ws;
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24
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25 public static final int METER_OVER_REFPOINT = 0;
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26
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27 public static final int CENTIMETER_AT_GAUGE = 1;
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28
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29 protected int referenceSystem;
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30
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31 public W() {
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32 ws = new TDoubleArrayList();
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33 }
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34
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35 public W(String name) {
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36 super(name);
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37 ws = new TDoubleArrayList();
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38 }
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39
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40 public W(int capacity) {
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41 this(capacity, "");
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42 }
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43
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44 public W(int capacity, String name) {
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45 this(capacity, "", METER_OVER_REFPOINT);
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46 }
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47
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48 public W(int capacity, String name, int referenceSystem) {
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49 super(name);
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50 this.referenceSystem = referenceSystem;
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51 ws = new TDoubleArrayList(capacity);
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52 }
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53
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54 /** Sets the used reference system for W.
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55 * If the W's refer to values in meters over a reference
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56 * point (e.g. NN+m) they are in meter. If they are
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57 * relative to the PNP of a gauge they are in centimeter. */
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58 public void setReferenceSystem(int val) {
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59 referenceSystem = val;
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60 }
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61
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62 /** Return the used reference system for W.
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63 * If the W's refer to values in meters over a reference
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64 * point (e.g. NN+m) they are in meter. If they are
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65 * relative to the PNP of a gauge they are in centimeter. */
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66 public int getReferenceSystem() {
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67 return referenceSystem;
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68 }
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69
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70 /** Convenience function to get the correct unit for W values. */
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71 public String getWUnit() {
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72 if (getReferenceSystem() == CENTIMETER_AT_GAUGE) {
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73 return "cm";
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74 }
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75 return "m";
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76 }
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77
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78 public void add(double value) {
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79 ws.add(value);
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80 }
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81
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82 public int size() {
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83 return ws.size();
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84 }
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85
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86 public double getW(int idx) {
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87 return ws.getQuick(idx);
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88 }
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89
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90 public double [] getWs() {
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91 return ws.toNativeArray();
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92 }
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93
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94 public double [] get(int idx) {
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95 return get(idx, new double [1]);
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96 }
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97
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98 public double [] get(int idx, double [] dst) {
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99 dst[0] = ws.getQuick(idx);
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100 return dst;
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101 }
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102
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103 public double minWs() {
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104 return ws.min();
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105 }
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106
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107 public void removeNaNs() {
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108 DoubleUtil.removeNaNs(new TDoubleArrayList [] { ws });
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109 }
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110
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111 public boolean guessWaterIncreasing() {
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112 return guessWaterIncreasing(0.05f);
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113 }
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114
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115 public boolean guessWaterIncreasing(float factor) {
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116 return DataUtil.guessDataIncreasing(ws, factor);
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117 }
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118
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119 public int [] longestIncreasingWRangeIndices() {
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120 return longestIncreasingWRangeIndices(new int[2]);
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121 }
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122
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123 public int [] longestIncreasingWRangeIndices(int [] bounds) {
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124
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125 int N = size();
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126 int start = 0;
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127 int stop = 0;
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128
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129 double lastW = Double.MAX_VALUE;
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130
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131 for (int i = 0; i < N; ++i) {
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132 double v = ws.getQuick(i);
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133 if (v <= lastW) {
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134 if (stop-start > bounds[1]-bounds[0]) {
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135 bounds[0] = start;
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136 bounds[1] = stop;
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137 if (log.isDebugEnabled()) {
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138 log.debug("new range: " +
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139 bounds[0] + " - " + bounds[1] + " (" +
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140 ws.getQuick(bounds[0]) + ", " +
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141 ws.getQuick(bounds[1]) + ")");
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142
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143 }
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144 }
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145 start = stop = i;
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146 }
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147 else {
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148 stop = i;
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149 }
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150 lastW = v;
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151 }
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152
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153 if (stop-start > bounds[1]-bounds[0]) {
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154 bounds[0] = start;
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155 bounds[1] = stop;
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156 if (log.isDebugEnabled()) {
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157 log.debug("new range @end: " +
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158 bounds[0] + " - " + bounds[1] + " (" +
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159 ws.getQuick(bounds[0]) + ", " +
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160 ws.getQuick(bounds[1]) + ")");
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161 }
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162 }
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163
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164 return bounds;
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165 }
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166 }
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167 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org