[postgis-tickets] [PostGIS] #4748: Incorrect coordinate transformation

[PostGIS]

#4748: Incorrect coordinate transformation
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  Reporter:  Matthew Blissett  |      Owner:  pramsey
      Type:  defect            |     Status:  new
  Priority:  medium            |  Milestone:  PostGIS 3.1.0
 Component:  postgis           |    Version:  master
Resolution:                    |   Keywords:
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Comment (by pramsey):

 So this case is interesting because it it's polar stereographic, and the
 axis swap logic was "swap if the first axis has a 'north' direction".
 Well... all the axes in the Antarctic have a north direction. So this is a
 weird axis that is "Easting" but also "north". I've changed up the logic
 to leave all "E" axes alone, and only then look at axis direction.

 It's possible this will result in "unexpected" results in Krovak or some
 other Southing/Westing systems, but there seem to be almost none of those,
 so maybe we'll never run across it. I cannot do anything definitive at
 this time, because I have no idea how users of Krovak like to consume
 their coordinates. There's a "GIS oriented" form of Krovak that uses
 Easting/Northing, so maybe nobody every using the Southing/Westing
 version.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4748#comment:1>
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