--- a/gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContextFactory.java	Sat Jan 09 12:45:42 2010 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContextFactory.java	Sat Jan 09 16:58:53 2010 +0000
@@ -78,6 +78,9 @@
     public final static String VERTICAL_CROSS_SECTION_FILTERS =
         "/artifact-database/gnv/vertical-cross-section/filters/filter";
 
+    public final static String VERTICAL_CROSS_SECTION_GROUND_INTERPOLATION =
+        "/artifact-database/gnv/vertical-cross-section/ground/@interpolation";
+
     /**
      * Constructor
      */
@@ -149,6 +152,30 @@
         log.info("configuration of vertical cross section");
         configureVerticalCrossSectionSamples(config, context);
         configureVerticalCrossSectionFilters(config, context);
+        configureVerticalCrossSectionGroundInterpolation(config, context);
+    }
+
+    protected void configureVerticalCrossSectionGroundInterpolation(
+        Document           config,
+        GNVArtifactContext context
+    ) {
+        log.info("configuration of vertical cross section ground interpolation");
+        String interpolation = Config.getStringXPath(
+            config,
+            VERTICAL_CROSS_SECTION_GROUND_INTERPOLATION);
+
+        if (interpolation == null 
+        || (interpolation = interpolation.trim()).length() == 0) {
+            interpolation = GNVArtifactContext
+                .DEFAULT_VERTICAL_CROSS_SECTION_GROUND_INTERPOLATION;
+        }
+
+        log.info("ground interpolation: " + interpolation);
+
+        context.put(
+            GNVArtifactContext
+                .VERTICAL_CROSS_SECTION_GROUND_INTERPOLATION_KEY,
+            interpolation);
     }
 
     protected void configureVerticalCrossSectionFilters(