Clean the various EPS thresholds in MapProjection subclasses
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Key: GEOT-1827
URL: http://jira.codehaus.org/browse/GEOT-1827
Project: GeoTools
Issue Type: Task
Components: core referencing
Affects Versions: 2.5-M0
Reporter: Martin Desruisseaux
Assignee: Martin Desruisseaux
Priority: Minor
Fix For: 2.5.0
The {{MapProjection}} subclasses use different EPS thresholds for floating
point comparaisons. It may be possible to factorize some of them in their
parent class by using name reflecting their purpose, rather than the vague
"{{EPS}}" name used everywhere.
Of special interest is the threshold used for detecting when we are close to 0
or 90°. The {{AffineTransform}} class has an interresting description of this
problem. We should probably copy their idea and use their threshold value in
replacement of the arbitrary {{1E-6}} commonly used. See "Handling 90-Degree
Rotations" at
http://java.sun.com/javase/6/docs/api/java/awt/geom/AffineTransform.html.
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