Martin Desruisseaux created SIS-407:
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Summary: OutOfMemoryError when reading Sentinel 1 image with
GeoTIFF reader
Key: SIS-407
URL: https://issues.apache.org/jira/browse/SIS-407
Project: Spatial Information Systems
Issue Type: Bug
Components: Storage
Affects Versions: 0.8
Reporter: Martin Desruisseaux
Assignee: Martin Desruisseaux
Fix For: 1.0
When opening a Sentinel 1 GeoTIFF image, the call to
{{DataStore.getMetadata()}} cause the JVM to attempt to allocate about one
gigabyte of memory. This is not caused by the image size, but rather by a
mathematical error. In the {{LocalizationGridBuilder}} class, private method
{{infer}} computes the greatest common divisor of _X_ and _Y_ translations from
the grid origin. Sentinel 1 image have control points spaced by 1320 pixels on
the _X_ axis, except the very last point which is only 1302 pixels after the
previous one. This cause {{LocalizationGridBuilder}} to find a much smaller
common divisor than expected (6 instead of 1320), which cause it to attempt to
create a localization grid much larger than it should be.
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