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| author | Even Rouault <even.rouault@spatialys.com> | 2019-10-03 13:58:19 +0200 |
|---|---|---|
| committer | Even Rouault <even.rouault@spatialys.com> | 2019-10-03 13:58:19 +0200 |
| commit | 5cd917f6c63cc9d55ad9de8c6fdd07709be9ae37 (patch) | |
| tree | 3677bfbd56a1497572778d551d7a0c666c749759 /data/sql | |
| parent | dca893f02ac822f2ccf5f02a4331920eeb42299a (diff) | |
| download | PROJ-5cd917f6c63cc9d55ad9de8c6fdd07709be9ae37.tar.gz PROJ-5cd917f6c63cc9d55ad9de8c6fdd07709be9ae37.zip | |
ob_tran doc: fix/clarify semantics of o_lat_p/o_lon_p
This is a super confusing topic, but from experiments, and in particular with
the example of Fairgrieve projection, o_lat_p and o_lon_p are the coordinates
of the North pole of the unrotated geographic CRS expressed in the rotated
geographic CRS.
This is different from defining a 'new pole', which would be the coordinates
of the rotated North pole expressed in the unrotated CRS.
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