[postgis-tickets] [PostGIS] #3464: ERROR: lwt_ChangeEdgeGeom could not construct face X, on the left of edge Y

[PostGIS]

#3464: ERROR: lwt_ChangeEdgeGeom could not construct face X, on the left of edge Y
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  Reporter:  strk      |      Owner:  strk
      Type:  defect    |     Status:  new
  Priority:  medium    |  Milestone:  PostGIS Future
 Component:  topology  |    Version:  trunk
Resolution:            |   Keywords:  robustness
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Comment (by strk):

 Upper side, first segment crosses both edges near their start node:

 [[Image(upper_detail.png)]]

 Third line vertex is within the narrow face:

 [[Image(middle_detail.png)]]

 Final line vertex is outside the narrow face:

 [[Image(lower_detail.png)]]

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3464#comment:5>
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