CoverageCrop: cropping by shape
-------------------------------

                 Key: GEOT-3087
                 URL: http://jira.codehaus.org/browse/GEOT-3087
             Project: GeoTools
          Issue Type: Improvement
          Components: core coverage
            Reporter: Emanuele Tajariol
             Fix For: 2.7-M0
         Attachments: 20100518_gt_trunk_coverage.diff

The existing CoverageCrop operation only performs cropping according to a 
boundingbox.
The proposed patch accepts also an optional (multi)polygonal Geometry ROI.
The output coverage area will be the intersection of the source bounds, the 
requested envelope and the requested ROI.
Envelope and ROI are not mutually exclusive, and at least one of them must be 
supplied to the operation.

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