--- a/artifacts/src/main/java/org/dive4elements/river/exports/minfo/BedDifferenceYearGenerator.java	Wed Jul 10 09:31:43 2013 +0200
+++ b/artifacts/src/main/java/org/dive4elements/river/exports/minfo/BedDifferenceYearGenerator.java	Wed Jul 10 10:05:52 2013 +0200
@@ -34,7 +34,7 @@
 
 
 public class BedDifferenceYearGenerator
-extends FixChartGenerator
+extends BedDiffBaseGenerator
 implements FacetTypes
 {
     public enum YAXIS {
@@ -86,36 +86,6 @@
         };
     }
 
-    public void setContextBounds(ArtifactAndFacet bundle) {
-        if (getXBounds(0) != null && getDomainAxisRange() != null) {
-            Bounds bounds =
-                calculateZoom(getXBounds(0), getDomainAxisRange());
-            context.putContextValue("startkm", bounds.getLower());
-            context.putContextValue("endkm", bounds.getUpper());
-        }
-        else if (getXBounds(0) != null && getDomainAxisRange() == null) {
-            context.putContextValue("startkm", getXBounds(0).getLower());
-            context.putContextValue("endkm", getXBounds(0).getUpper());
-        }
-        else if (getXBounds(0) == null && getDomainAxisRange() == null) {
-            BedDifferencesResult data = (BedDifferencesResult)bundle.getData(context);
-            if (data.getKms().size() > 0) {
-                context.putContextValue("startkm", data.getKms().min());
-                context.putContextValue("endkm", data.getKms().max());
-            }
-            else {
-                logger.warn("No data to define start and end km");
-            }
-        }
-        else if (getXBounds(0) == null && getDomainAxisRange() != null){
-            BedDifferencesResult data = (BedDifferencesResult)bundle.getData(context);
-            Bounds b = new DoubleBounds(data.getKms().min(), data.getKms().max());
-            Bounds bounds =
-                calculateZoom(b, getDomainAxisRange());
-            context.putContextValue("startkm", bounds.getLower());
-            context.putContextValue("endkm", bounds.getUpper());
-        }
-    }
 
     @Override
     public void doOut(ArtifactAndFacet bundle, Document attr, boolean visible) {
@@ -134,7 +104,9 @@
             return;
         }
 
-        setContextBounds(bundle);
+        if (bundle.getData(context) instanceof BedDifferencesResult) {
+            setContextBounds(bundle);
+        }
 
         Processor processor = new KMIndexProcessor();
         Processor woutp = new WOutProcessor();