--- a/flys-artifacts/ChangeLog	Tue Nov 01 10:40:05 2011 +0000
+++ b/flys-artifacts/ChangeLog	Tue Nov 01 12:23:59 2011 +0000
@@ -1,3 +1,23 @@
+2011-11-01	Felix Wolfsteller	<felix.wolfsteller@intevation.de>
+
+	Minor preparations to handle multiple cross sections in one
+	diagram/artifact, faking certain aspects (e.g. ability to display
+	multiple cross sections, but let these fetch the exactly same data
+	for now).
+
+	* src/main/java/de/intevation/flys/artifacts/WINFOArtifact.java:
+	  Parameterize but fake access to cross-section (always take first
+	  one).
+	  (getCrossSectionName,getCrossSectionNames): Renamed, access names
+	  of all cross-sections, so that at least facets with different names
+	  are created (they will still deliver the same data).
+
+	* src/main/java/de/intevation/flys/artifacts/model/CrossSectionFacet.java:
+	  Allow indexing.
+
+	* src/main/java/de/intevation/flys/artifacts/states/WaterlevelState.java:
+	  Index created cross-sections.
+
 2011-11-01	Felix Wolfsteller	<felix.wolfsteller@intevation.de>
 
 	Show multiple water lines and facets in cross-section diagram if
@@ -14,7 +34,6 @@
 	* src/main/java/de/intevation/flys/artifacts/states/WaterlevelState.java:
 	  Add one Facet for each of the computed waterlevels.
 
-
 2011-10-31	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
 
 	* src/main/java/de/intevation/flys/artifacts/geom/VectorUtils.java:

--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/WINFOArtifact.java	Tue Nov 01 10:40:05 2011 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/WINFOArtifact.java	Tue Nov 01 12:23:59 2011 +0000
@@ -670,7 +670,7 @@
 
     /**
      * Get CrossSectionLine spatially closest to what is specified in the data
-     * "cross_section.km".
+     * "cross_section.km" (and from "cross_section.index").
      *
      * @return CrossSectionLine closest to "cross_section.km".
      */
@@ -680,17 +680,26 @@
             wishKM = Double.parseDouble(getDataAsString("cross_section.km"));
         }
         catch (Exception e) {
-            logger.warn(e);
+            logger.warn("Exception when parsing cross_section.km", e);
+        }
+
+        int crossSectionIdx = 0;
+
+        List<CrossSection> sections = getCrossSections();
+        if (sections.size() < crossSectionIdx) {
+            logger.error("Cross-section not found: " + crossSectionIdx);
+            return null;
+        }
+        if (sections.size() == 0
+            || sections.get(crossSectionIdx).getLines().size() == 0)
+        {
+            return null;
         }
 
         // Get the cross section closest to requested km.
         // Naive, linear approach.
-        List<CrossSection> sections = getCrossSections();
-        if (sections.size() == 0 || sections.get(0).getLines().size() == 0) {
-            return null;
-        }
         List<CrossSectionLine> crossSectionLines =
-            sections.get(0).getLines();
+            sections.get(crossSectionIdx).getLines();
         CrossSectionLine oldLine = crossSectionLines.get(0);
         double oldDiff = Math.abs(wishKM - oldLine.getKm().doubleValue());
         for (CrossSectionLine line: crossSectionLines) {
@@ -734,7 +743,10 @@
         logger.info("getCrossSectionData() for cross_section.km "
             + getDataAsString("cross_section.km"));
         CrossSectionLine line = searchCrossSectionKmLine();
-        return line != null ? line.fetchCrossSectionProfile() : null;
+
+        return line != null
+               ? line.fetchCrossSectionProfile()
+               : null;
     }
 
 
@@ -771,7 +783,7 @@
             wishKM = Double.parseDouble(getDataAsString("cross_section.km"));
         }
         catch (Exception e) {
-            logger.warn(e);
+            logger.warn("Exception when trying to get cross_section.km", e);
         }
 
         if (triple.size() == 0) {
@@ -796,17 +808,17 @@
 
 
     /**
-     * Get name of cross section.
+     * Get name of cross sections.
+     * @return list of names of cross-sections.
      */
-    public String getCrossSectionName() {
-        List<CrossSection> sections = getCrossSections();
+    public List<String> getCrossSectionNames() {
+        List<String> names = new ArrayList<String>();
 
-        if (sections.size() > 0) {
-            return sections.get(0).getDescription();
+        for (CrossSection section: getCrossSections()) {
+            names.add(section.getDescription());
         }
-        else {
-            return "";
-        }
+
+        return names;
     }
 
 

--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/CrossSectionFacet.java	Tue Nov 01 10:40:05 2011 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/CrossSectionFacet.java	Tue Nov 01 12:23:59 2011 +0000
@@ -25,8 +25,8 @@
     protected ComputeType type;
 
     /** Trivial constructor, set (maybe localized) description. */
-    public CrossSectionFacet(String description) {
-        super(0, CROSS_SECTION, description);
+    public CrossSectionFacet(int idx, String description) {
+        super(idx, CROSS_SECTION, description);
         type = ComputeType.ADVANCE;
     }
 
@@ -46,7 +46,7 @@
     /** Do a deep copy. */
     @Override 
     public Facet deepCopy() {
-        CrossSectionFacet copy = new CrossSectionFacet(this.description);
+        CrossSectionFacet copy = new CrossSectionFacet(this.index, this.description);
         copy.set(this);
         return copy;
     }

--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/WaterlevelState.java	Tue Nov 01 10:40:05 2011 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/WaterlevelState.java	Tue Nov 01 12:23:59 2011 +0000
@@ -85,8 +85,11 @@
 
             facets.add(wst);
             facets.add(csv);
-            // Also register the CrossSectionFacet (added to respective out).
-            facets.add(new CrossSectionFacet(winfo.getCrossSectionName()));
+            // Also register the CrossSectionFacets.
+            int idx = 0;
+            for (String name: winfo.getCrossSectionNames()) {
+                facets.add(new CrossSectionFacet(idx++, name));
+            }
         }
 
         if (res.getReport().hasProblems()) {