--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FixingsColumn.java	Tue Apr 03 16:51:03 2012 +0000
@@ -0,0 +1,55 @@
+package de.intevation.flys.artifacts.model;
+
+import de.intevation.flys.artifacts.math.Linear;
+
+import java.util.Arrays;
+
+import java.io.Serializable;
+
+public class FixingsColumn
+implements   Serializable
+{
+    protected int columnId;
+
+    protected double [] kms;
+    protected double [] ws;
+
+    protected QRangeTree qs;
+
+    public FixingsColumn() {
+    }
+
+    public FixingsColumn(
+        int       columnId, 
+        double [] kms,
+        double [] ws
+    ) {
+        this.columnId = columnId;
+        this.kms      = kms;
+        this.ws       = ws;
+    }
+
+    public int getColumnId() {
+        return columnId;
+    }
+
+    public double getW(double km) {
+
+        if (km < kms[0] || km > kms[kms.length-1]) {
+            return Double.NaN;
+        }
+
+        int idx = Arrays.binarySearch(kms, km);
+
+        if (idx >= 0) return ws[idx];
+
+        idx = -idx - 1;
+
+        return Linear.linear(km, kms[idx], kms[idx+1], ws[idx], ws[idx+1]);
+    }
+
+    public double getQ(double km) {
+        return qs.findQ(km);
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :