Martin Desruisseaux created SIS-605:
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Summary: Express subsamplings are long instead of int
Key: SIS-605
URL: https://issues.apache.org/jira/browse/SIS-605
Project: Spatial Information Systems
Issue Type: Task
Components: Storage
Affects Versions: 1.4, 1.3, 1.2, 1.1
Reporter: Martin Desruisseaux
Assignee: Martin Desruisseaux
Fix For: 1.5
When reading a raster, an optional subsampling can be specified. In this
context, "subsampling" should be understood as a way to express the scale
factors, since data stores are allowed to use pyramid levels instead of
performing real subsampling on the lowest level.
In current SIS version, the grid coverage sizes are expressed as {{long}} but
the subsampling are specified as a {{int}}. The subsampling should be of the
same type as the size (i.e. {{long}}) because when the user requests an
overview of a very large coverage, the subsampling factors will be almost as
large as the size. For example, for an overview of 100 × 100 pixels, the
subsampling will be only 100 times less than the coverage size.
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