Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/model/sq/SQCurveFacet.java @ 7152:8c169743f4d0
Noted insights.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Thu, 26 Sep 2013 08:38:12 +0200 |
parents | af13ceeba52a |
children | 5b2126d21c2e |
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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.sq; import org.apache.log4j.Logger; import org.dive4elements.artifacts.Artifact; import org.dive4elements.artifacts.CallContext; import org.dive4elements.river.artifacts.D4EArtifact; import org.dive4elements.river.artifacts.math.fitting.Function; import org.dive4elements.river.artifacts.math.fitting.FunctionFactory; import org.dive4elements.river.artifacts.model.CalculationResult; import org.dive4elements.river.artifacts.model.DataFacet; import org.dive4elements.river.artifacts.model.FacetTypes; import org.dive4elements.river.artifacts.model.Parameters; import org.dive4elements.river.artifacts.states.DefaultState.ComputeType; /** * Facet to show the curve in a sq relation. * * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class SQCurveFacet extends DataFacet implements FacetTypes { private static final Logger log = Logger.getLogger(SQCurveFacet.class); public static final String FUNCTION = "sq-pow"; private int fractionIdx; public SQCurveFacet() { } public SQCurveFacet( int idx, int fractionIdx, String name, String description, String hash, String stateId ) { super(idx, name, description, ComputeType.ADVANCE, hash, stateId); this.fractionIdx = fractionIdx; } @Override public Object getData(Artifact artifact, CallContext context) { log.debug("SQCurveFacet.getData"); if (!(artifact instanceof D4EArtifact)) { return null; } D4EArtifact flys = (D4EArtifact) artifact; CalculationResult res = (CalculationResult) flys.compute( context, ComputeType.ADVANCE, false); SQResult[] results = (SQResult[]) res.getData(); SQFractionResult result = results[index].getFraction(fractionIdx); Parameters params = result.getParameters(); if (params == null) { log.debug("no parameters found"); return null; } Function func = FunctionFactory.getInstance().getFunction(FUNCTION); String[] paramNames = func.getParameterNames(); double [] coeffs = params.get(0, paramNames); if (log.isDebugEnabled()) { for (int i = 0, N = paramNames.length; i < N; i++) { log.debug("retrieved parameter " + paramNames[i] + " = " + coeffs[i]); } } org.dive4elements.river.artifacts.math.Function mf = func.instantiate(coeffs); double [] extent = result.getQExtent(); return new SQFunction(mf, extent[0], extent[1]); } @Override public SQCurveFacet deepCopy() { SQCurveFacet copy = new SQCurveFacet(); copy.set(this); return copy; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :