[postgis-tickets] [PostGIS] #3198: Docs for ST_AddEdgeModFace are wrong about which side of new edge gets the new face

PostGIS trac at osgeo.org
Thu Jul 9 02:27:46 PDT 2015


#3198: Docs for ST_AddEdgeModFace are wrong about which side of new edge gets the
new face
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  Reporter:  strk           |      Owner:  robe
      Type:  defect         |     Status:  new
  Priority:  medium         |  Milestone:  PostGIS 2.1.8
 Component:  documentation  |    Version:  2.1.x
Resolution:                 |   Keywords:
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Comment (by strk):

 Double checking, I confirm the new face is preferably on the left, and the
 old face on the right.
 "Preferably" because it is not always possible. It isn't possible, for
 example, when the new ring is a closed clockwise ring in the universe
 face. Trying to further clarify the cases in which it is not possible to
 maintain that preference I found that there's no testcase for adding
 closed edges touching the boundary of an existent face from the inside.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3198#comment:1>
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