Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/WQ.java @ 1022:930a9ce24294

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Datacage: Fixed caching issue leading to incorrect results. flys-artifacts/trunk@2480 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Wed, 10 Aug 2011 08:43:38 +0000
parents 659608128823
children 821aaceb2776
rev   line source
726
cbaa3ca86f2f Added base class WQ for WQKms.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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1 package de.intevation.flys.artifacts.model;
cbaa3ca86f2f Added base class WQ for WQKms.
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2
cbaa3ca86f2f Added base class WQ for WQKms.
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3 import gnu.trove.TDoubleArrayList;
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4
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b385577bcaca WQ: Added a method to guess is increasing.
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5 import java.util.Random;
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6
726
cbaa3ca86f2f Added base class WQ for WQKms.
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7 public class WQ
925
0cb1a70b8b92 Added the math needed to calculate "W-Differenzen" in "Laengsschnitten"
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8 extends NamedObjectImpl
726
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9 {
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10 // TODO: s/w/ws/g
726
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11 protected TDoubleArrayList w;
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12
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13 // TODO: s/q/qs/g
726
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14 protected TDoubleArrayList q;
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15
cbaa3ca86f2f Added base class WQ for WQKms.
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16 public WQ() {
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17 this("");
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18 }
cbaa3ca86f2f Added base class WQ for WQKms.
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19
cbaa3ca86f2f Added base class WQ for WQKms.
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20 public WQ(String name) {
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21 w = new TDoubleArrayList();
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22 q = new TDoubleArrayList();
cbaa3ca86f2f Added base class WQ for WQKms.
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23 }
cbaa3ca86f2f Added base class WQ for WQKms.
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24
cbaa3ca86f2f Added base class WQ for WQKms.
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25 public WQ(int capacity) {
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26 this(capacity, "");
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27 }
cbaa3ca86f2f Added base class WQ for WQKms.
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28
cbaa3ca86f2f Added base class WQ for WQKms.
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29
cbaa3ca86f2f Added base class WQ for WQKms.
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30 public WQ(int capacity, String name) {
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31 super(name);
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32 w = new TDoubleArrayList(capacity);
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33 q = new TDoubleArrayList(capacity);
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34 }
cbaa3ca86f2f Added base class WQ for WQKms.
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35
cbaa3ca86f2f Added base class WQ for WQKms.
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36 public WQ(double [] qs, double [] ws) {
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37 this(qs, ws, "");
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38 }
cbaa3ca86f2f Added base class WQ for WQKms.
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39
cbaa3ca86f2f Added base class WQ for WQKms.
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40 public WQ(double [] qs, double [] ws, String name) {
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41 super(name);
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42 w = new TDoubleArrayList(ws);
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43 q = new TDoubleArrayList(qs);
cbaa3ca86f2f Added base class WQ for WQKms.
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44 }
cbaa3ca86f2f Added base class WQ for WQKms.
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45
cbaa3ca86f2f Added base class WQ for WQKms.
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46 public void add(double w, double q) {
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47 this.w.add(w);
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48 this.q.add(q);
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49 }
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50
cbaa3ca86f2f Added base class WQ for WQKms.
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51 public int size() {
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52 return w.size();
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53 }
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54
cbaa3ca86f2f Added base class WQ for WQKms.
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55 public double getW(int idx) {
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56 return w.getQuick(idx);
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57 }
cbaa3ca86f2f Added base class WQ for WQKms.
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58
cbaa3ca86f2f Added base class WQ for WQKms.
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59 public double getQ(int idx) {
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60 return q.getQuick(idx);
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61 }
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62
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63 public double [] get(int idx) {
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64 return get(idx, new double [2]);
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65 }
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66
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67 public double [] get(int idx, double [] dst) {
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68 dst[0] = w.getQuick(idx);
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69 dst[1] = q.getQuick(idx);
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70 return dst;
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71 }
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72
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73 public double [] getWs() {
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74 return w.toNativeArray();
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75 }
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76
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77 public double [] getQs() {
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78 return q.toNativeArray();
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79 }
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80
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81 public static void removeNaNs(TDoubleArrayList [] arrays) {
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82
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83 int dest = 0;
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84
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85 int A = arrays.length;
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86 int N = arrays[0].size();
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87
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88 OUTER: for (int i = 0; i < N; ++i) {
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89 for (int j = 0; j < A; ++j) {
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90 TDoubleArrayList a = arrays[j];
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91 double v = a.getQuick(i);
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92 if (Double.isNaN(v)) {
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93 continue OUTER;
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94 }
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95 a.setQuick(dest, v);
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96 }
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97 ++dest;
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98 }
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99
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100 if (dest < N) {
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101 for (int i = 0; i < A; ++i) {
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102 arrays[i].remove(dest, N-dest);
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103 }
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104 }
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105 }
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106
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107 public void removeNaNs() {
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108 removeNaNs(new TDoubleArrayList [] { w, q });
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109 }
744
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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
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117 int N = w.size();
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118 if (N < 2) return false;
659608128823 Fix(?) for flys/issue114
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119
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120 int samples = (int)(factor*N) + 1;
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121
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122 int up = 0;
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123
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124 Random rand = new Random();
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125
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126 for (int i = 0; i < samples; ++i) {
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127 int pos2 = rand.nextInt(N-1) + 1;
926
659608128823 Fix(?) for flys/issue114
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 925
diff changeset
128 if (pos2 == 0) continue;
748
30be4b71c36c WQ: Guessing increaing w is not based on direct neighbors any more.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 744
diff changeset
129 int pos1 = rand.nextInt(pos2);
30be4b71c36c WQ: Guessing increaing w is not based on direct neighbors any more.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 744
diff changeset
130 double w1 = w.getQuick(pos1);
30be4b71c36c WQ: Guessing increaing w is not based on direct neighbors any more.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 744
diff changeset
131 double w2 = w.getQuick(pos2);
744
b385577bcaca WQ: Added a method to guess is increasing.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 726
diff changeset
132 if (w2 > w1) ++up;
b385577bcaca WQ: Added a method to guess is increasing.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 726
diff changeset
133 }
b385577bcaca WQ: Added a method to guess is increasing.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 726
diff changeset
134
b385577bcaca WQ: Added a method to guess is increasing.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 726
diff changeset
135 return up > samples/2;
b385577bcaca WQ: Added a method to guess is increasing.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 726
diff changeset
136 }
b385577bcaca WQ: Added a method to guess is increasing.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 726
diff changeset
137
726
cbaa3ca86f2f Added base class WQ for WQKms.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
138 }
cbaa3ca86f2f Added base class WQ for WQKms.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
139 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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