Allow imagemosaic to perform full native resolution extractions out of massive
mosaics
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Key: GEOT-3363
URL: http://jira.codehaus.org/browse/GEOT-3363
Project: GeoTools
Issue Type: Improvement
Components: gc imagemosaic
Affects Versions: 2.7-M5
Reporter: Andrea Aime
Fix For: 2.7-beta1
At the time of writing that does not work properly because a ROIShape is
generated that is as big as the mosaic.
The mosaic code in turn calls ROIShape.getAsImage and a binary image as big as
the mosaic is generated, resulting in an out of memory.
The attached patch leverages jaitools ROIGeometry instead, which provides a
scalabel getAsImage() method via the jaitools VectorBinarize operation (a
sourceless operation that binarizes the geometry tile by tile on demand)
This still requires some work, but a review would be good nonetheless
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