--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/WstValueTable.java	Thu Feb 09 11:47:25 2012 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/WstValueTable.java	Thu Feb 09 12:13:28 2012 +0000
@@ -940,31 +940,30 @@
             return new double[2][0];
         }
 
-        int N = sf1.splineQs.length;
+        int N = Math.min(sf1.splineQs.length, sf2.splineQs.length);
         double stepWidth = N/(double)numSamples;
 
         PolynomialSplineFunction qW1 = sf1.spline;
         PolynomialSplineFunction qW2 = sf2.spline;
 
-        double [] ws1 = new double[numSamples];
-        double [] ws2 = new double[numSamples];
-        double [] qs1 = new double[numSamples];
-        double [] qs2 = new double[numSamples];
-
-        Arrays.fill(ws1, Double.NaN);
-        Arrays.fill(ws2, Double.NaN);
-        Arrays.fill(qs1, Double.NaN);
-        Arrays.fill(qs2, Double.NaN);
+        TDoubleArrayList ws1 = new TDoubleArrayList(numSamples);
+        TDoubleArrayList ws2 = new TDoubleArrayList(numSamples);
+        TDoubleArrayList qs1 = new TDoubleArrayList(numSamples);
+        TDoubleArrayList qs2 = new TDoubleArrayList(numSamples);
 
         boolean hadErrors = false;
 
-        double p = 0d;
-        for (int i = 0; i < numSamples; ++i, p += stepWidth) {
+        int i = 0;
+        for (double p = 0d; p <= N-1; p += stepWidth, ++i) {
             try {
-                qs1[i] = iQ1.value(p);
-                ws1[i] = qW1.value(qs1[i]);
-                qs2[i] = iQ2.value(p);
-                ws2[i] = qW2.value(qs2[i]);
+                double q1 = iQ1.value(p);
+                double w1 = qW1.value(q1);
+                double q2 = iQ2.value(p);
+                double w2 = qW2.value(q2);
+                ws1.add(w1);
+                ws2.add(w2);
+                qs1.add(q1);
+                qs2.add(q2);
             }
             catch (ArgumentOutsideDomainException aode) {
                 if (!hadErrors) {
@@ -979,7 +978,11 @@
             }
         }
 
-        return new double [][] { ws1, qs1, ws2, qs2 };
+        return new double [][] {
+            ws1.toNativeArray(),
+            qs1.toNativeArray(), 
+            ws2.toNativeArray(),
+            qs2.toNativeArray() };
     }
 
     public QPosition getQPosition(double km, double q) {