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From "Martin Desruisseaux (Jira)" <j...@apache.org>
Subject [jira] [Commented] (SIS-462) Corner cases in CoordinateOperationFinder
Date Tue, 07 Jul 2020 13:10:00 GMT

    [ https://issues.apache.org/jira/browse/SIS-462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17152735#comment-17152735
] 

Martin Desruisseaux commented on SIS-462:
-----------------------------------------

Done except the last point about {{interpolationCRS}}. Should be revisited as part of the
migration to ISO 19111:2019.

> Corner cases in CoordinateOperationFinder
> -----------------------------------------
>
>                 Key: SIS-462
>                 URL: https://issues.apache.org/jira/browse/SIS-462
>             Project: Spatial Information Systems
>          Issue Type: Improvement
>          Components: Referencing
>    Affects Versions: 0.7, 0.8, 1.0
>            Reporter: Martin Desruisseaux
>            Assignee: Martin Desruisseaux
>            Priority: Minor
>             Fix For: 1.1
>
>
> {{CoordinateOperationFinder}} has some corner cases where if fail to find a coordinate
operation, or a more appropriate operation could be found. Those corner cases are identified
by {{TODO}} labels in the code. Some cases are:
> h3. In {{createOperationStep(GeodeticCRS, GeodeticCRS)}}:
> * Geographic 2D ⇌ Geographic 3D with datum change: current code can not build a Molodensky
operation (it builds that operation only when the number of dimensions is the same).
> * Coordinate operation performing change of coordinate system (for example from {{CartesianCS}}
to {{SphericalCS}}) incorrectly named "Affine".
> h3. In {{createOperationStep(GeodeticCRS, VerticalCRS)}}:
> * Information about {{interpolationCRS}} is lost.



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