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https://issues.apache.org/jira/browse/SIS-605?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martin Desruisseaux updated SIS-605:
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Summary: Express subsamplings as long integers (was: Express subsamplings
as longs instead of ints)
> Express subsamplings as long integers
> -------------------------------------
>
> Key: SIS-605
> URL: https://issues.apache.org/jira/browse/SIS-605
> Project: Spatial Information Systems
> Issue Type: Task
> Components: Storage
> Affects Versions: 1.1, 1.2, 1.3, 1.4
> Reporter: Martin Desruisseaux
> Assignee: Martin Desruisseaux
> Priority: Minor
> 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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