[postgis-tickets] [PostGIS] #3046: topology.GetRingEdges return wrong ring when edge.next_left/right = edge

[PostGIS]

#3046: topology.GetRingEdges return wrong ring when edge.next_left/right = edge
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  Reporter:  remic     |       Owner:  strk  
      Type:  defect    |      Status:  closed
  Priority:  medium    |   Milestone:        
 Component:  topology  |     Version:  2.1.x 
Resolution:  invalid   |    Keywords:        
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Comment(by strk):

 You really walk on the edge _side_, not on the edge. And you take left
 turns. Dangling edges, like the one you're walking on, have the same face
 on both sides so wherever you walk you are on the same face. This is
 useful to determine if removing the edge would merge two faces or not (for
 example).

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/3046#comment:4>
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