ingo@3072: package de.intevation.flys.artifacts.model.sq;
ingo@3072: 
ingo@3072: import org.apache.log4j.Logger;
ingo@3072: 
ingo@3072: import de.intevation.artifacts.Artifact;
ingo@3072: import de.intevation.artifacts.CallContext;
ingo@3072: 
ingo@3105: import de.intevation.flys.artifacts.FLYSArtifact;
ingo@3105: import de.intevation.flys.artifacts.math.fitting.Function;
ingo@3105: import de.intevation.flys.artifacts.math.fitting.FunctionFactory;
ingo@3105: import de.intevation.flys.artifacts.model.CalculationResult;
ingo@3105: import de.intevation.flys.artifacts.model.DataFacet;
ingo@3072: import de.intevation.flys.artifacts.model.FacetTypes;
ingo@3105: import de.intevation.flys.artifacts.model.Parameters;
ingo@3072: 
ingo@3072: import de.intevation.flys.artifacts.states.DefaultState.ComputeType;
ingo@3072: 
ingo@3072: 
ingo@3072: /**
ingo@3072:  * Facet to show the curve in a sq relation.
ingo@3072:  *
ingo@3072:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@3072:  */
ingo@3072: public class SQCurveFacet extends DataFacet implements FacetTypes {
ingo@3072: 
ingo@3072:     private static final Logger log = Logger.getLogger(SQCurveFacet.class);
ingo@3072: 
ingo@3072: 
ingo@3105:     public static final String FUNCTION = "sq-pow";
ingo@3105: 
ingo@3105: 
ingo@3101:     private int fractionIdx;
ingo@3101: 
ingo@3101: 
ingo@3072:     public SQCurveFacet() {
ingo@3072:     }
ingo@3072: 
ingo@3072: 
ingo@3101:     public SQCurveFacet(
ingo@3101:         int    idx,
ingo@3101:         int    fractionIdx,
ingo@3101:         String name,
ingo@3101:         String description,
ingo@3101:         String hash,
ingo@3101:         String stateId
ingo@3101:     ) {
ingo@3101:         super(idx, name, description, ComputeType.ADVANCE, hash, stateId);
ingo@3101:         this.fractionIdx = fractionIdx;
ingo@3072:     }
ingo@3072: 
ingo@3072: 
ingo@3072:     @Override
ingo@3072:     public Object getData(Artifact artifact, CallContext context) {
ingo@3072:         log.debug("SQCurveFacet.getData");
ingo@3105: 
ingo@3105:         if (artifact instanceof FLYSArtifact) {
ingo@3105:             FLYSArtifact flys = (FLYSArtifact) artifact;
ingo@3105: 
ingo@3105:             CalculationResult res = (CalculationResult) flys.compute(
ingo@3105:                 context, ComputeType.ADVANCE, false);
ingo@3105: 
ingo@3105:             SQResult[]       results = (SQResult[]) res.getData();
ingo@3105:             SQFractionResult result  = results[index].getFraction(fractionIdx);
ingo@3105: 
ingo@3105:             Function func = FunctionFactory.getInstance().getFunction(FUNCTION);
ingo@3105:             String[] paramNames = func.getParameterNames();
ingo@3105: 
ingo@3105:             Parameters params = result.getParameters();
ingo@3105:             double[]   coeffs = params.get(0, paramNames);
ingo@3105: 
ingo@3105:             if (log.isDebugEnabled()) {
ingo@3105:                 for (int i = 0, N = paramNames.length; i < N; i++) {
ingo@3105:                     log.debug("retrieved parameter " + paramNames[i] +
ingo@3105:                               " = " + coeffs[i]);
ingo@3105:                 }
ingo@3105:             }
ingo@3105: 
ingo@3105:             de.intevation.flys.artifacts.math.Function mf =
ingo@3105:                 func.instantiate(coeffs);
ingo@3105: 
ingo@3105:             return new SQFunction(mf, result.getMinQ(), result.getMaxQ());
ingo@3105:         }
ingo@3072: 
ingo@3072:         return null;
ingo@3072:     }
ingo@3072: 
ingo@3072: 
ingo@3072:     @Override
ingo@3072:     public SQCurveFacet deepCopy() {
ingo@3072:         SQCurveFacet copy = new SQCurveFacet();
ingo@3072:         copy.set(this);
ingo@3072: 
ingo@3072:         return copy;
ingo@3072:     }
ingo@3072: }
ingo@3072: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :