--- a/gnv-artifacts/ChangeLog	Tue Dec 22 10:34:15 2009 +0000
+++ b/gnv-artifacts/ChangeLog	Tue Dec 22 13:10:56 2009 +0000
@@ -1,3 +1,9 @@
+2009-12-22  Ingo Weinzierl <ingo.weinzierl@intevation.de>
+
+	* src/main/java/de/intevation/gnv/math/HeightValue.java,
+	  src/main/java/de/intevation/gnv/math/XYColumn.java: Added model classes to
+	  store information for interpolation.
+
 2009-12-22	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
 
 	* doc/conf/conf.xml: Added config section for palettes.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/math/HeightValue.java	Tue Dec 22 13:10:56 2009 +0000
@@ -0,0 +1,33 @@
+package de.intevation.gnv.math;
+
+/**
+ * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
+ */
+public class HeightValue {
+
+    private double z;
+    private double v;
+    private int    k;
+
+
+    public HeightValue(double z, double v, int k) {
+        this.z = z;
+        this.v = v;
+        this.k = k;
+    }
+
+
+    public double getZ() {
+        return z;
+    }
+
+
+    public double getV() {
+        return v;
+    }
+
+
+    public double getK() {
+        return k;
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/math/XYColumn.java	Tue Dec 22 13:10:56 2009 +0000
@@ -0,0 +1,37 @@
+package de.intevation.gnv.math;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
+ */
+public class XYColumn {
+
+    private double x;
+    private double y;
+
+    private int    i;
+    private int    j;
+
+    private List   values;
+
+    public XYColumn(double x, double y, int i, int j) {
+        this.x = x;
+        this.y = y;
+        this.i = i;
+        this.j = j;
+
+        values = new ArrayList();
+    }
+
+
+    public void add(HeightValue value) {
+        values.add(value);
+    }
+
+
+    public HeightValue[] getValues() {
+        return (HeightValue[]) values.toArray(new HeightValue[values.size()]);
+    }
+}