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https://issues.apache.org/jira/browse/SIS-329?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martin Desruisseaux closed SIS-329.
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> Transformation of envelope from UTM to WGS84 sometime wrongly expanded to the
> ±180° longitude range
> ---------------------------------------------------------------------------------------------------
>
> Key: SIS-329
> URL: https://issues.apache.org/jira/browse/SIS-329
> Project: Spatial Information Systems
> Issue Type: Bug
> Components: Referencing
> Affects Versions: 0.7
> Reporter: Martin Desruisseaux
> Assignee: Martin Desruisseaux
> Fix For: 0.8
>
>
> Consider the following envelope in UTM 30N (EPSG code 32630). Note that the
> longitude range crosses the limit of the CRS domain of validity, which is -6°
> to 0°:
> {noformat}
> BOX(199980 4490220, 309780 4600020)
> {noformat}
> Transformation to WGS84 (EPSG code 4326) should give something close to:
> {noformat}
> BOX(-6.5941 40.5085, -5.2462 41.5292)
> {noformat}
> but we get:
> {noformat}
> BOX(-180 40.5085, +180 41.5292)
> {noformat}
> The longitude range (-6.6° to -5.2°) has been expanded to ±180°. This is
> because the {{Envelopes.transform(…)}} method verifies if the given envelope
> contains a "singularity" (typically a pole), and the ±180° longitude are
> wrongly identified as contained singularities in this particular case.
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