[postgis-tickets] [PostGIS] #4336: ST_LineToCurve generates wrong Arcs for Epsilon 1E-1 (+ potential fix)

PostGIS trac at osgeo.org
Thu Apr 25 00:03:39 PDT 2019


#4336: ST_LineToCurve generates wrong Arcs for Epsilon  1E-1 (+ potential fix)
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  Reporter:  tvijlbrief  |      Owner:  pramsey
      Type:  defect      |     Status:  new
  Priority:  medium      |  Milestone:  PostGIS 2.5.3
 Component:  postgis     |    Version:  2.4.x
Resolution:              |   Keywords:
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Comment (by tvijlbrief):

 Yes, they do not include curves. You can change the signature to
 linestring, that is not relevant.

 Just feed the first geometry to st_linetocurve() from an unchanged postgis
 with epsilon 1e-1 and check the result. It will generate a result
 linestring with an error epsilon > 10m.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4336#comment:9>
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