[postgis-tickets] [PostGIS] #3924: ST_Project does not project perfectly east-west

[PostGIS]

#3924: ST_Project does not project perfectly east-west
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  Reporter:  petermj  |      Owner:  pramsey
      Type:  defect   |     Status:  closed
  Priority:  medium   |  Milestone:  PostGIS 2.4.2
 Component:  postgis  |    Version:  2.4.x
Resolution:  invalid  |   Keywords:
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Changes (by pramsey):

 * status:  new => closed
 * resolution:   => invalid


Comment:

 If I am on a line of latitude in the northern hemisphere and I want to
 move to a point 10km east and on the same line of latitude, do I set my
 heading directly east? No, I do not. I set it slightly north, so when I
 start walking, without deviation, the great circle route lands me at the
 point I desired.

 Similarly, if I am in the northern hemisphere and set my direction due
 east and start walking, without deviation, I will follow a great circle
 from that point, which will inevitably lead me southwards.

 The only place where I can set my heading due east and start walking and
 stay at the same latitude is the equator.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3924#comment:1>
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