Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/model/WQDay.java @ 6152:0587819960c3
Waterlevel differences & bed height differences: Add new model LinearInterpolated intented to unify the two very similiar calculations. The focus of the current implementation is correctness and not speed! The fact that the data sets more mostly sorted by station is not exploited. Doing so would improve performance significantly.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Sun, 02 Jun 2013 17:52:53 +0200 |
parents | af13ceeba52a |
children | 8b614d152a79 |
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde * Software engineering by Intevation GmbH * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.artifacts.model; import gnu.trove.TIntArrayList; /** * This class represents a pool of data triples that consists of 'W', 'Q' and * 'Day' data. * * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class WQDay extends WQ { protected TIntArrayList days; public WQDay() { super(""); days = new TIntArrayList(); } public WQDay(int capacity) { super(capacity); days = new TIntArrayList(capacity); } public WQDay(int [] days, double [] ws, double [] qs) { super(qs, ws, ""); this.days = new TIntArrayList(days); } public void add(int day, double w, double q) { super.add(w, q); days.add(day); } public boolean isIncreasing() { int lo = getDay(0); int hi = getDay(size()-1); return lo < hi; } public int getDay(int idx) { return days.getQuick(idx); } @Override public void removeNaNs() { int dest = 0; int N = ws.size(); for (int i = 0; i < N; ++i) { double wi = ws.getQuick(i); double qi = qs.getQuick(i); if (Double.isNaN(wi) || Double.isNaN(qi)) { continue; } days.setQuick(dest, days.getQuick(i)); ws.setQuick(dest, wi); qs.setQuick(dest, qi); ++dest; } if (dest < N) { days.remove(dest, N-dest); ws .remove(dest, N-dest); qs .remove(dest, N-dest); } } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :