diff flys-artifacts/ChangeLog @ 2198:672a41efe222

"Bezugslinienverfahren": Replaced normalized curve generation with a better and needed solution. flys-artifacts/trunk@3814 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sat, 28 Jan 2012 12:50:03 +0000
parents 5781847433d8
children 7bac5afb9892
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--- a/flys-artifacts/ChangeLog	Fri Jan 27 17:59:24 2012 +0000
+++ b/flys-artifacts/ChangeLog	Sat Jan 28 12:50:03 2012 +0000
@@ -1,3 +1,29 @@
+2012-01-28	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/artifacts/model/WW.java:
+	  Removed the createNormalized() method because it did not
+	  solve all problems with the transformation of the W~W data we have.
+
+	  - We need to shift the values to be based in (0, 0).
+	  - We need to linear transform the values if they are at gauges.
+	  - Copying the data is memory expensive.
+
+	  Therefore there is now a new inner class ApplyFunctionIterator
+	  that is able to transform the values in an iterator like manner.
+	  The transform functions default to the identity.
+
+	* src/main/java/de/intevation/flys/artifacts/math/Sub.java: New.
+	  Simple function that subtract a scalar from the parameter.
+
+	* src/main/java/de/intevation/flys/artifacts/model/W.java: Added
+	  method minWs() to calulate the minimal W of the data.
+
+	* src/main/java/de/intevation/flys/artifacts/model/NormalizedReferenceCurveFacet.java:
+	  getData() returns a WW.ApplyFunctionIterator with identity transform.
+
+	* src/main/java/de/intevation/flys/artifacts/model/ReferenceCurveFacet.java:
+	  getData() returns a WW.ApplyFunctionIterator with a base shift to (0, 0).
+
 2012-01-27	Sascha L. Teichmann	<sascha.teichmann@intevation.de>
 
 	* src/main/java/de/intevation/flys/artifacts/model/WW.java:

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