# HG changeset patch
# User Raimund Renkert <rrenkert@intevation.de>
# Date 1354632062 -3600
# Node ID 79827cd334d5f1bc2558f7e2e56e38f1fc9a454d
# Parent  6122ee2ab67f413c38bf671b113cf4751feb415c
Use moving average algorithm to calculate average values depending on the zoom
level.

diff -r 6122ee2ab67f -r 79827cd334d5 flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/minfo/BedDiffEpochFacet.java
--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/minfo/BedDiffEpochFacet.java	Tue Dec 04 15:39:50 2012 +0100
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/minfo/BedDiffEpochFacet.java	Tue Dec 04 15:41:02 2012 +0100
@@ -6,8 +6,12 @@
 import de.intevation.artifacts.Artifact;
 import de.intevation.artifacts.CallContext;
 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.model.CalculationResult;
 import de.intevation.flys.artifacts.model.DataFacet;
+import de.intevation.flys.artifacts.model.MovingAverage;
+import de.intevation.flys.artifacts.model.ZoomScale;
 import de.intevation.flys.artifacts.states.DefaultState.ComputeType;
 
 
@@ -32,9 +36,33 @@
         CalculationResult res = (CalculationResult) flys.compute(context, hash,
             stateId, type, false);
 
-        Object[] data =
+        BedDiffEpochResult[] data =
             (BedDiffEpochResult[]) res.getData(); // TODO CAST TO SPECIFIC CLASS
+        Double start = (Double)context.getContextValue("startkm");
+        Double end = (Double)context.getContextValue("endkm");
 
+        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);
+            BedDiffEpochResult oldData = data[index];
+            BedDiffEpochResult newData = new BedDiffEpochResult();
+            newData.setStart(oldData.getStart());
+            newData.setEnd(oldData.getEnd());
+            double[][] diffs = MovingAverage.weighted(oldData.getDifferencesData(), radius);
+            double[][] heights1 = MovingAverage.weighted(oldData.getHeights1Data(), radius);
+            double[][] heights2 = MovingAverage.weighted(oldData.getHeights2Data(), radius);
+            for(int j = 0; j < diffs[0].length; j++) {
+                newData.addKm(diffs[0][j]);
+                newData.addDifference(diffs[1][j]);
+                newData.addHeight1(heights1[1][j]);
+                newData.addHeight2(heights2[1][j]);
+            }
+            return newData;
+        }
         return data != null && data.length > index ? data[index] : null;
     }
 
diff -r 6122ee2ab67f -r 79827cd334d5 flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/minfo/BedDiffYearFacet.java
--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/minfo/BedDiffYearFacet.java	Tue Dec 04 15:39:50 2012 +0100
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/minfo/BedDiffYearFacet.java	Tue Dec 04 15:41:02 2012 +0100
@@ -6,8 +6,12 @@
 import de.intevation.artifacts.Artifact;
 import de.intevation.artifacts.CallContext;
 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.model.CalculationResult;
 import de.intevation.flys.artifacts.model.DataFacet;
+import de.intevation.flys.artifacts.model.MovingAverage;
+import de.intevation.flys.artifacts.model.ZoomScale;
 import de.intevation.flys.artifacts.states.DefaultState.ComputeType;
 
 
@@ -32,9 +36,36 @@
         CalculationResult res = (CalculationResult) flys.compute(context, hash,
             stateId, type, false);
 
-        Object[] data =
+        BedDiffYearResult[] data =
             (BedDiffYearResult[]) res.getData(); // TODO CAST TO SPECIFIC CLASS
+        Double start = (Double)context.getContextValue("startkm");
+        Double end = (Double)context.getContextValue("endkm");
+        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);
+            BedDiffYearResult oldData = data[index];
+            BedDiffYearResult newData = new BedDiffYearResult();
+            newData.setStart(oldData.getStart());
+            newData.setEnd(oldData.getEnd());
+            double[][] diffs = MovingAverage.weighted(oldData.getDifferencesData(), radius);
+            double[][] heights1 = MovingAverage.weighted(oldData.getHeights1Data(), radius);
+            double[][] heights2 = MovingAverage.weighted(oldData.getHeights2Data(), radius);
+            double[][] morph = oldData.getMorphWidthData();
+            double[][] year = MovingAverage.weighted(oldData.getHeightPerYearData(), radius);
+            for(int j = 0; j < diffs[0].length; j++) {
+                newData.addKm(diffs[0][j]);
+                newData.addBedHeights(year[1][j]);
+                newData.addMorphWidth(morph[1][j]);
+                newData.addDifference(diffs[1][j]);
+                newData.addHeight1(heights1[1][j]);
+                newData.addHeight2(heights2[1][j]);
+            }
+            return newData;
+        }
         return data != null && data.length > index ? data[index] : null;
     }