Martin Desruisseaux created SIS-408:
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Summary: Add SpecializableTransform
Key: SIS-408
URL: https://issues.apache.org/jira/browse/SIS-408
Project: Spatial Information Systems
Issue Type: New Feature
Components: Referencing
Affects Versions: 0.8
Reporter: Martin Desruisseaux
Assignee: Martin Desruisseaux
Fix For: 1.0
Sometime, there is a datum shift grid covering a wide area and smaller datum
shift grids covering smaller area at finer resolution. Current SIS version does
not handle those smaller grids (called _"specialization"_ here). We need a
{{MathTransform}} implementation which delegate to another transform when the
coordinate is found to be in a given area.
This is useful not only for datum shift grids, but also for localization grids
(e.g. in GeoTIFF files) when pixel coordinates of control points in the last
rows or columns are not spaced in the same way than the first points. This
happen in Sentinel 1 images for instance.
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