Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/model/DifferenceCurveFilterFacet.java @ 9425:3f49835a00c3
Extended CrossSectionFacet so it may fetch different data from within the artifact result.
Also allows to have acces to the potentially already computed artifact result via its normal computation cache.
author | gernotbelger |
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date | Fri, 17 Aug 2018 15:31:02 +0200 |
parents | a805211690f7 |
children |
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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 org.dive4elements.artifactdatabase.state.Facet; import org.dive4elements.artifacts.Artifact; import org.dive4elements.artifacts.CallContext; import org.dive4elements.river.artifacts.D4EArtifact; import org.dive4elements.river.artifacts.access.RiverAccess; import org.dive4elements.river.artifacts.context.RiverContext; import org.dive4elements.river.artifacts.math.MovingAverage; import org.dive4elements.river.artifacts.states.DefaultState.ComputeType; public class DifferenceCurveFilterFacet extends DifferenceCurveFacet { public DifferenceCurveFilterFacet() { } public DifferenceCurveFilterFacet( int index, String name, String description, ComputeType type, String stateID, String hash ) { super(index, name, description, type, stateID, hash); } /** * Get difference curve data. * @return a WKms at given index. */ @Override public Object getData(Artifact artifact, CallContext context) { WKms result = (WKms)super.getData(artifact, context); Double start = (Double)context.getContextValue("startkm"); Double end = (Double)context.getContextValue("endkm"); if(start != null && end != null) { RiverContext fc = (RiverContext)context.globalContext(); // Adaptive smoothing, based on zoom factor/diagram extents. ZoomScale scales = (ZoomScale)fc.get("zoomscale"); RiverAccess access = new RiverAccess((D4EArtifact)artifact); String river = access.getRiverName(); double radius = scales.getRadius(river, start, end); double[][] oldData = new double[2][result.size()]; for (int i = 0; i < result.size(); i++) { oldData[0][i] = result.getKm(i); oldData[1][i] = result.getW(i); } double[][] diffs = MovingAverage.weighted(oldData, radius); WKmsImpl newData = new WKmsImpl(); for(int j = 0; j < diffs[0].length; j++) { newData.add(diffs[0][j], diffs[1][j]); } return newData; } return result; } /** Copy deeply. */ @Override public Facet deepCopy() { WaterlevelFacet copy = new DifferenceCurveFilterFacet(); copy.set(this); copy.type = type; copy.stateId = stateId; copy.hash = hash; return copy; } }