Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/model/DifferenceCurveFilterFacet.java @ 8723:686d8876edf9
(issue1754) Fix Radius calculation for filtered (smoothed) facets
To know the acutal extend of the Domain axis shown we need
to know all data in the diagram as the acutal extend is
the data point needed to calculate a Radius confusingly configured
in zoom-scales we have to add all data first and
then add the real filtered facets in a postprocessing step.
author | Andre Heinecke <andre.heinecke@intevation.de> |
---|---|
date | Wed, 29 Apr 2015 11:56:04 +0200 |
parents | 421e5cceac84 |
children | a805211690f7 |
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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; } }