--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/org/dive4elements/river/artifacts/model/WWAxisTypes.java	Thu Apr 25 12:06:39 2013 +0200
@@ -0,0 +1,84 @@
+package org.dive4elements.river.artifacts.model;
+
+import org.dive4elements.river.artifacts.math.Function;
+import org.dive4elements.river.artifacts.math.Identity;
+import org.dive4elements.river.artifacts.math.AddScaleFunction;
+
+public class WWAxisTypes
+{
+    protected boolean inCm1;
+    protected boolean inCm2;
+
+    public WWAxisTypes() {
+        inCm1 = inCm2 = true;
+    }
+
+    public WWAxisTypes(WW ww) {
+        this();
+        classify(ww);
+    }
+
+    public void classify(WW ww) {
+        if (!ww.startAtGauge()) inCm1 = false;
+        if (!ww.endAtGauge())   inCm2 = false;
+    }
+
+    public boolean getInCm(int index) {
+        switch (index) {
+            case 0:  return inCm1;
+            case 1:  return inCm2;
+            default: return false;
+        }
+    }
+
+    public boolean getInCm1() {
+        return inCm1;
+    }
+
+    public void setInCm1(boolean inCm1) {
+        this.inCm1 = inCm1;
+    }
+
+    public boolean getInCm2() {
+        return inCm2;
+    }
+
+    public void setInCm2(boolean inCm2) {
+        this.inCm2 = inCm2;
+    }
+
+    public WW.ApplyFunctionIterator transform(WW ww) {
+        return transform(ww, false);
+    }
+
+    private static final double zero(Double d) {
+        return d == null ? 0 : d;
+    }
+
+    public WW.ApplyFunctionIterator transform(WW ww, boolean normalized) {
+
+        Function function1;
+        Function function2;
+
+        if (!normalized) {
+            function1 = inCm1
+                ? new AddScaleFunction(-ww.getStartDatum(), 100d)
+                : Identity.IDENTITY;
+
+            function2 = inCm2
+                ? new AddScaleFunction(-ww.getEndDatum(), 100d)
+                : Identity.IDENTITY;
+        }
+        else {
+            double minW1 = ww.minWs();
+            double minW2 = ww.minWs2();
+            double scale1 = inCm1 ? 100d : 1d;
+            double scale2 = inCm2 ? 100d : 1d;
+            function1 = new AddScaleFunction(-minW1, scale1);
+            function2 = new AddScaleFunction(-minW2, scale2);
+        }
+
+        return new WW.ApplyFunctionIterator(ww, function1, function2);
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :