--- a/flys-artifacts/ChangeLog	Fri May 27 16:52:37 2011 +0000
+++ b/flys-artifacts/ChangeLog	Mon May 30 09:19:57 2011 +0000
@@ -1,3 +1,10 @@
+2011-05-30	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	flys/issue82
+
+	* src/main/java/de/intevation/flys/artifacts/WINFOArtifact.java:
+	  Only successful interpolations are named.
+
 2011-05-27	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
 
 	* src/main/java/de/intevation/flys/artifacts/math/BackJumpCorrector.java:

--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/WINFOArtifact.java	Fri May 27 16:52:37 2011 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/WINFOArtifact.java	Mon May 30 09:19:57 2011 +0000
@@ -1,6 +1,8 @@
 package de.intevation.flys.artifacts;
 
 import java.util.List;
+import java.util.Set;
+import java.util.HashSet;
 import java.util.Vector;
 import java.util.ArrayList;
 
@@ -277,11 +279,15 @@
             throw new NullPointerException("No Wst found for selected river.");
         }
 
-        WQKms[] results = computeWaterlevelData(kms, qs, wst, river.getKmUp());
+        HashSet<Integer> failed = new HashSet<Integer>();
+
+        WQKms[] results = computeWaterlevelData(
+            kms, qs, wst, river.getKmUp(), failed);
 
         // TODO Introduce a caching mechanism here!
 
-        setWaterlevelNames(results, qSel ? qs : ws, qSel ? "Q" : "W");
+        setWaterlevelNames(
+            results, qSel ? qs : ws, qSel ? "Q" : "W", failed);
 
         return results;
     }
@@ -295,9 +301,17 @@
      * @param v The input values of the computations.
      * @param wq The WQ mode - can be one of "W" or "Q".
      */
-    public static void setWaterlevelNames(WQKms[] r, double[] v, String wq) {
+    public static void setWaterlevelNames(
+        WQKms[]  r, 
+        double[] v, 
+        String   wq, 
+        Set      failed
+    ) {
+        int pos = 0;
         for (int i = 0; i < v.length; i++) {
-            r[i].setName(wq + "=" + Double.toString(v[i]));
+            if (!failed.contains(i)) {
+                r[pos++].setName(wq + "=" + v[i]);
+            }
         }
     }
 
@@ -316,7 +330,8 @@
         double[]      kms,
         double[]      qs,
         WstValueTable wst,
-        boolean       up
+        boolean       up,
+        Set<Integer>  failed
     ) {
         logger.info("WINFOArtifact.computeWaterlevelData");
 
@@ -336,6 +351,7 @@
             }
             else {
                 logger.warn("interpolation failed for q = " + qs[i]);
+                failed.add(i);
             }
         }
 
@@ -567,7 +583,12 @@
             }
             if (qs.length == 1) {
                 double [] kms = getKms(segments[0]);
-                return computeWaterlevelData(kms, qs, wst, kmUp);
+                HashSet<Integer> failed = new HashSet<Integer>();
+                WQKms [] results = computeWaterlevelData
+                    (kms, qs, wst, kmUp, failed);
+                setWaterlevelNames(
+                    results, qs, isQ() ? "Q" : "W", failed);
+                return results;
             }
         }
 
@@ -652,6 +673,8 @@
 
         int referenceIndex = kmUp ?  0 : boundKms.length-1;
 
+        HashSet<Integer> failed = new HashSet<Integer>();
+
         for (int i = 0; i < iqs.length; ++i) {
             double [] iqsi = iqs[i];
 
@@ -662,6 +685,7 @@
 
             if (qPosition == null) {
                 logger.warn("interpolation failed for " + iqsi[i]);
+                failed.add(i);
                 continue;
             }
 
@@ -691,7 +715,8 @@
 
         WQKms [] wqkms = results.toArray(new WQKms[results.size()]);
 
-        setDischargeLongitudinalSectionNames(wqkms, iqs, isQ() ? "Q" : "W");
+        setDischargeLongitudinalSectionNames(
+            wqkms, iqs, isQ() ? "Q" : "W", failed);
 
         return wqkms;
     }
@@ -724,15 +749,21 @@
      * in <i>r</i> represents a column.
      */
     public static void setDischargeLongitudinalSectionNames(
-        WQKms  []   wqkms,
-        double [][] iqs,
-        String      wq
+        WQKms  []    wqkms,
+        double [][]  iqs,
+        String       wq,
+        Set<Integer> failed
     ) {
         logger.debug("WINFOArtifact.setDischargeLongitudinalSectionNames");
 
         // TODO: I18N
 
-        for (int j = 0; j < wqkms.length; ++j) {
+        int pos = 0;
+
+        for (int j = 0; j < iqs.length; ++j) {
+            if (failed.contains(j)) {
+                continue;
+            }
             StringBuilder sb = new StringBuilder(wq)
                 .append(" benutzerdefiniert (");
 
@@ -745,7 +776,7 @@
             }
             sb.append(")");
 
-            wqkms[j].setName(sb.toString());
+            wqkms[pos++].setName(sb.toString());
         }
     }
 }