Martin Desruisseaux created SIS-428:
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Summary: Allow derivative to be specified by the inverse
projection instead than the forward one
Key: SIS-428
URL: https://issues.apache.org/jira/browse/SIS-428
Project: Spatial Information Systems
Issue Type: Improvement
Components: Referencing
Reporter: Martin Desruisseaux
The way {{NormalizedProjection}} API is designed, derivatives can be computed
only by the direct transform. This was based on the assumption that forward
projections are always simpler than inverse projection. But the Mollweide
projection (SIS-426) breaks this assumption. With current API computing the
derivative of the inverse Mollweide projection implies creating that matrices,
inverting it, then inverting it back again to the original matrix. We need a
way to return the first matrix directly instead.
See {{inverseDerivate}} method in {{Mollweide}} class.
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