diff flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FlowVelocityFacet.java @ 4626:5b551e3a58d5

Add start and end km of current chart zoomlevel to the context and use these values to calculate the moving average.
author Raimund Renkert <rrenkert@intevation.de>
date Mon, 03 Dec 2012 17:10:08 +0100
parents cc6323401643
children 63368dcc3f94
line wrap: on
line diff
--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FlowVelocityFacet.java	Mon Dec 03 17:08:39 2012 +0100
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FlowVelocityFacet.java	Mon Dec 03 17:10:08 2012 +0100
@@ -7,6 +7,8 @@
 
 import de.intevation.flys.artifacts.FLYSArtifact;
 
+import de.intevation.flys.artifacts.access.RiverAccess;
+import de.intevation.flys.artifacts.context.FLYSContext;
 import de.intevation.flys.artifacts.states.DefaultState.ComputeType;
 
 import org.apache.log4j.Logger;
@@ -39,13 +41,36 @@
     public Object getData(Artifact artifact, CallContext context) {
         logger.debug("Get data for flow velocity at index: " + index);
 
+        Double start = (Double)context.getContextValue("startkm");
+        Double end = (Double)context.getContextValue("endkm");
         FLYSArtifact flys = (FLYSArtifact) artifact;
 
         CalculationResult res = (CalculationResult)
             flys.compute(context, hash, stateId, type, false);
 
         FlowVelocityData[] data = (FlowVelocityData[]) res.getData();
+        if(start != null && end != null) {
+            FLYSContext fc = (FLYSContext)context.globalContext();
+            ZoomScale scales = (ZoomScale)fc.get("zoomscale");
+            RiverAccess access = new RiverAccess((FLYSArtifact)artifact);
+            String river = access.getRiver();
 
+            double radius = scales.getRadius(river, start, end);
+            FlowVelocityData oldData = data[index];
+            FlowVelocityData newData = new FlowVelocityData();
+            double[][] q = oldData.getQPoints();
+            double[][] totalV = MovingAverage.weighted(oldData.getTotalChannelPoints(), radius);
+            double[][] mainV = MovingAverage.weighted(oldData.getMainChannelPoints(), radius);
+            double[][] tau = MovingAverage.weighted(oldData.getTauPoints(), radius);
+            for(int j = 0; j < q[0].length; j++) {
+                newData.addKM(q[0][j]);
+                newData.addQ(q[1][j]);
+                newData.addTauMain(tau[1][j]);
+                newData.addVMain(mainV[1][j]);
+                newData.addVTotal(totalV[1][j]);
+            }
+            return newData;
+        }
         return data[index];
     }
 

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