[postgis-tickets] [PostGIS] #5382: ST_AsMVTGeom output is snapped to grid incorrectly

PostGIS trac at osgeo.org
Wed Jun 21 08:17:41 PDT 2023


#5382: ST_AsMVTGeom output is snapped to grid incorrectly
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  Reporter:  mknycha  |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  medium   |  Milestone:  PostGIS 3.1.10
 Component:  postgis  |    Version:  3.3.x
Resolution:           |   Keywords:
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Comment (by pramsey):

 Can you restate this as an example with ST_SnapToGrid that demonstrates
 the issue you perceive? Under the hood, that is what is being called.

 As far as a problem with MVT, since the snapping is by default happening
 on a 4096x4096 grid I find it hard to get worked up about which particular
 grid cell is getting snapped to.
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5382#comment:2>
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