Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/Calculation4.java @ 4255:670e98f5a441
Fixed leak while merging facets.
The ThemeList that is used by OutputHelper to sort the
Facets for an Output now uses a list to store the ManagedFacets.
The correct order is made up by sorting the List using
Collections.sort() function of the Java JDK. Therfore, the
ManagedFacet class implements the Comparable interface. The
return value of its compareTo(other) method depends on the
value of the 'position' field.
author | Ingo Weinzierl <weinzierl.ingo@googlemail.com> |
---|---|
date | Thu, 25 Oct 2012 14:01:46 +0200 |
parents | 22790758b132 |
children | 39885bdfc6fc |
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package de.intevation.flys.artifacts.model; import de.intevation.flys.artifacts.math.BackJumpCorrector; import de.intevation.flys.artifacts.math.Function; import de.intevation.flys.artifacts.math.Identity; import de.intevation.flys.artifacts.math.Linear; import de.intevation.flys.artifacts.model.WstValueTable.QPosition; import de.intevation.flys.model.River; import de.intevation.flys.utils.DoubleUtil; import java.util.Arrays; import java.util.List; import org.apache.log4j.Logger; public class Calculation4 extends Calculation { private static Logger logger = Logger.getLogger(Calculation4.class); public static final double MINIMAL_STEP_WIDTH = 1e-5; protected List<Segment> segments; protected boolean isQ; public Calculation4() { } public Calculation4(List<Segment> segments, River river, boolean isQ) { this.segments = segments; this.isQ = isQ; Segment.setReferencePointConvertQ(segments, river, isQ, this); } public CalculationResult calculate( WstValueTable table, double from, double to, double step ) { boolean debug = logger.isDebugEnabled(); if (debug) { logger.debug( "calculate from " + from + " to " + to + " step " + step); logger.debug("# segments: " + segments.size()); for (Segment segment: segments) { logger.debug(" " + segment); } } if (segments.isEmpty()) { logger.debug("no segments found"); addProblem("no.segments.found"); return new CalculationResult(new WQKms[0], this); } int numResults = segments.get(0).values.length; if (numResults < 1) { logger.debug("no values given"); addProblem("no.values.given"); return new CalculationResult(new WQKms[0], this); } WQKms [] results = new WQKms[numResults]; for (int i = 0; i < results.length; ++i) { results[i] = new WQKms(); } if (Math.abs(step) < MINIMAL_STEP_WIDTH) { step = MINIMAL_STEP_WIDTH; } if (from > to) { step = -step; } QPosition [] qPositions = new QPosition[numResults]; Function [] functions = new Function[numResults]; double [] out = new double[2]; Segment sentinel = new Segment(Double.MAX_VALUE); Segment s1 = sentinel, s2 = sentinel; for (double pos = from; from < to ? pos <= to : pos >= to; pos = DoubleUtil.round(pos + step) ) { if (pos < s1.referencePoint || pos > s2.referencePoint) { if (debug) { logger.debug("need to find new interval for " + pos); } // find new interval if (pos <= segments.get(0).referencePoint) { // before first segment -> "gleichwertig" if (debug) { logger.debug("before first segment -> gleichwertig"); } Segment first = segments.get(0); double [] values = first.values; double refPos = first.referencePoint; for (int i = 0; i < qPositions.length; ++i) { qPositions[i] = table.getQPosition( refPos, values[i]); } sentinel.setReferencePoint(-Double.MAX_VALUE); s1 = sentinel; s2 = segments.get(0); Arrays.fill(functions, Identity.IDENTITY); } else if (pos >= segments.get(segments.size()-1).referencePoint) { // after last segment -> "gleichwertig" if (debug) { logger.debug("after last segment -> gleichwertig"); } Segment last = segments.get(segments.size()-1); double [] values = last.values; double refPos = last.referencePoint; for (int i = 0; i < qPositions.length; ++i) { qPositions[i] = table.getQPosition( refPos, values[i]); } sentinel.setReferencePoint(Double.MAX_VALUE); s1 = last; s2 = sentinel; Arrays.fill(functions, Identity.IDENTITY); } else { // "ungleichwertig" // find matching interval if (debug) { logger.debug("in segments -> ungleichwertig"); } s1 = s2 = null; for (int i = 1, N = segments.size(); i < N; ++i) { Segment si1 = segments.get(i-1); Segment si = segments.get(i); if (debug) { logger.debug("check " + pos + " in " + si1.referencePoint + " - " + si.referencePoint); } if (pos >= si1.referencePoint && pos <= si. referencePoint) { s1 = si1; s2 = si; break; } } if (s1 == null) { throw new IllegalStateException("no interval found"); } Segment anchor, free; if (from > to) { anchor = s1; free = s2; } else { anchor = s2; free = s1; } // build transforms based on "gleichwertiger" phase for (int i = 0; i < qPositions.length; ++i) { QPosition qi = table.getQPosition( anchor.referencePoint, anchor.values[i]); if ((qPositions[i] = qi) == null) { addProblem(pos, "cannot.find.q", anchor.values[i]); functions[i] = Identity.IDENTITY; } else { double qA = table.getQ(qi, anchor.referencePoint); double qF = table.getQ(qi, free .referencePoint); functions[i] = Double.isNaN(qA) || Double.isNaN(qF) ? Identity.IDENTITY : new Linear( qA, qF, anchor.values[i], free.values[i]); if (debug) { logger.debug( anchor.referencePoint + ": " + qA + " -> " + functions[i].value(qA) + " / " + free.referencePoint + ": " + qF + " -> " + functions[i].value(qF)); } } } // build transforms } // "ungleichwertiges" interval } // find matching interval for (int i = 0; i < qPositions.length; ++i) { QPosition qPosition = qPositions[i]; if (qPosition == null) { continue; } if (table.interpolate(pos, out, qPosition, functions[i])) { results[i].add(out[0], out[1], pos); } else { addProblem(pos, "cannot.interpolate.w.q"); } } } // Backjump correction for (int i = 0; i < results.length; ++i) { BackJumpCorrector bjc = new BackJumpCorrector(); double [] ws = results[i].getWs(); double [] kms = results[i].getKms(); if (bjc.doCorrection(kms, ws, this)) { results[i] = new WQCKms(results[i], bjc.getCorrected()); } } // name the curves for (int i = 0; i < results.length; ++i) { results[i].setName(createName(i)); } return new CalculationResult(results, this); } protected String createName(int index) { // TODO: i18n StringBuilder sb = new StringBuilder(isQ ? "Q" : "W"); sb.append(" benutzerdefiniert ("); for (int i = 0, N = segments.size(); i < N; ++i) { if (i > 0) { sb.append("; "); } Segment segment = segments.get(i); sb.append((segment.backup != null ? segment.backup : segment.values)[index]); } sb.append(')'); return sb.toString(); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :