Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/WQ.java @ 965:79251b1d47da
Modified the CollectionMonitor to recommend artifacts for the current state's outputs only.
flys-artifacts/trunk@2385 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Thu, 21 Jul 2011 14:00:09 +0000 |
parents | 659608128823 |
children | 821aaceb2776 |
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package de.intevation.flys.artifacts.model; import gnu.trove.TDoubleArrayList; import java.util.Random; public class WQ extends NamedObjectImpl { // TODO: s/w/ws/g protected TDoubleArrayList w; // TODO: s/q/qs/g protected TDoubleArrayList q; public WQ() { this(""); } public WQ(String name) { w = new TDoubleArrayList(); q = new TDoubleArrayList(); } public WQ(int capacity) { this(capacity, ""); } public WQ(int capacity, String name) { super(name); w = new TDoubleArrayList(capacity); q = new TDoubleArrayList(capacity); } public WQ(double [] qs, double [] ws) { this(qs, ws, ""); } public WQ(double [] qs, double [] ws, String name) { super(name); w = new TDoubleArrayList(ws); q = new TDoubleArrayList(qs); } public void add(double w, double q) { this.w.add(w); this.q.add(q); } public int size() { return w.size(); } public double getW(int idx) { return w.getQuick(idx); } public double getQ(int idx) { return q.getQuick(idx); } public double [] get(int idx) { return get(idx, new double [2]); } public double [] get(int idx, double [] dst) { dst[0] = w.getQuick(idx); dst[1] = q.getQuick(idx); return dst; } public double [] getWs() { return w.toNativeArray(); } public double [] getQs() { return q.toNativeArray(); } public static void removeNaNs(TDoubleArrayList [] arrays) { int dest = 0; int A = arrays.length; int N = arrays[0].size(); OUTER: for (int i = 0; i < N; ++i) { for (int j = 0; j < A; ++j) { TDoubleArrayList a = arrays[j]; double v = a.getQuick(i); if (Double.isNaN(v)) { continue OUTER; } a.setQuick(dest, v); } ++dest; } if (dest < N) { for (int i = 0; i < A; ++i) { arrays[i].remove(dest, N-dest); } } } public void removeNaNs() { removeNaNs(new TDoubleArrayList [] { w, q }); } public boolean guessWaterIncreasing() { return guessWaterIncreasing(0.05f); } public boolean guessWaterIncreasing(float factor) { int N = w.size(); if (N < 2) return false; int samples = (int)(factor*N) + 1; int up = 0; Random rand = new Random(); for (int i = 0; i < samples; ++i) { int pos2 = rand.nextInt(N-1) + 1; if (pos2 == 0) continue; int pos1 = rand.nextInt(pos2); double w1 = w.getQuick(pos1); double w2 = w.getQuick(pos2); if (w2 > w1) ++up; } return up > samples/2; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :