Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/RelativePointFacet.java @ 4893:54762b8ef016
Builder: Doc.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Mon, 28 Jan 2013 14:43:53 +0100 |
parents | cd5eb8f5f6f1 |
children | cce12c06466f |
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package de.intevation.flys.artifacts.model; import java.util.List; import java.awt.geom.Point2D; import org.apache.log4j.Logger; import de.intevation.artifacts.Artifact; import de.intevation.artifacts.CallContext; import de.intevation.artifacts.DataProvider; import de.intevation.flys.artifacts.StaticWKmsArtifact; import de.intevation.flys.artifacts.math.Linear; /** * Facet to access a point. */ public class RelativePointFacet extends BlackboardDataFacet implements FacetTypes { /** Own logger. */ private static Logger logger = Logger.getLogger(RelativePointFacet.class); /** Trivial Constructor. */ public RelativePointFacet(String description) { this(RELATIVE_POINT, description); } public RelativePointFacet(String name, String description) { this.name = name; this.description = description; this.index = 0; } protected Point2D calculateDurationCurvePoint(CallContext context, StaticWKmsArtifact artifact) { // TODO here and in reference curve calc: Do warn if more than 1 // provider found or (way better) handle it. Object wqdays = null; double km = 0d; List<DataProvider> providers = context. getDataProvider(DurationCurveFacet.BB_DURATIONCURVE); if (providers.size() < 1) { logger.warn("Could not find durationcurve data provider."); } else { wqdays = providers.get(0).provideData( DurationCurveFacet.BB_DURATIONCURVE, null, context); } List<DataProvider> kmproviders = context. getDataProvider(DurationCurveFacet.BB_DURATIONCURVE_KM); if (kmproviders.size() < 1) { logger.warn("Could not find durationcurve.km data provider."); } else { logger.debug("Found durationcurve.km data provider."); String dckm = providers.get(0).provideData( DurationCurveFacet.BB_DURATIONCURVE_KM, null, context).toString(); km = Double.valueOf(dckm); } if (wqdays != null) { // Which W at this km? double w = artifact.getWAtKmLin(artifact.getWKms(0), km); if (w == -1) { logger.warn("w is -1, already bad sign!"); } // Where is this W passed by in the wq-curve? WQDay wqday = (WQDay) wqdays; // Doing a linear Day Of KM. int idx = 0; boolean wIncreases = wqday.getW(0) < wqday.getW(wqday.size()-1); if (wIncreases) { while (idx < wqday.size() && wqday.getW(idx) < w) { idx++; } } else { idx = wqday.size() -1; while (idx > 0 && wqday.getW(idx) > w) { idx--; } } double day = 0d; int mod = (wIncreases) ? -1 : +1; if (idx != 0 && idx <= wqday.size()-1) { day = Linear.linear(w, wqday.getW(idx+mod), wqday.getW(idx), wqday.getDay(idx+mod), wqday.getDay(idx)); } return new Point2D.Double((double) day, w); } logger.warn("not wqkms / w / day found"); // TODO better signal failure. return new Point2D.Double(0d, 0d); } /** * Calculate a reference curve point, that is, a point made of * the Ws from start and end km param of the reference curve. */ public Point2D calculateReferenceCurvePoint(CallContext context, StaticWKmsArtifact artifact) { List<DataProvider> providers = context. getDataProvider(ReferenceCurveFacet.BB_REFERENCECURVE_STARTKM); if (providers.size() < 1) { logger.warn("Could not find reference curve startkm data provider."); } Double start = (Double) providers.get(0). provideData(ReferenceCurveFacet.BB_REFERENCECURVE_STARTKM, null, context); providers = context. getDataProvider(ReferenceCurveFacet.BB_REFERENCECURVE_ENDKMS); if (providers.size() < 1) { logger.warn("Could not find reference curve endkms data provider."); } double[] ends = (double[]) providers.get(0). provideData(ReferenceCurveFacet.BB_REFERENCECURVE_ENDKMS, null, context); logger.debug("Got s " + start + " e " + ends); double startW = artifact.getWAtKmLin(artifact.getWKms(0), start.doubleValue()); // TODO handle multiple ends. double endW = artifact.getWAtKmLin(artifact.getWKms(0), ends[0]); logger.debug("Gotw s " + startW + " e " + endW); return new Point2D.Double(startW, endW); } /** * Returns the data this facet requires. * * @param artifact the owner artifact. * @param context the CallContext (ignored). * * @return the data. */ @Override public Object getData(Artifact artifact, CallContext context) { StaticWKmsArtifact staticData = (StaticWKmsArtifact) artifact; // Find out whether we live in a duration curve context, there we would // provide only a single point. if (context.getDataProvider( DurationCurveFacet.BB_DURATIONCURVE_KM).size() > 0) { return calculateDurationCurvePoint(context, staticData); } else if (context.getDataProvider( ReferenceCurveFacet.BB_REFERENCECURVE_STARTKM).size() > 0) { return calculateReferenceCurvePoint(context, staticData); } // TODO better signal failure. return new Point2D.Double(0d, 0d); } /** * Create a deep copy of this Facet. * @return a deep copy. */ @Override public RelativePointFacet deepCopy() { RelativePointFacet copy = new RelativePointFacet(description); copy.set(this); return copy; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :