[PostGIS] #6023: Silent toplogy error in the result (face has multiple shells,mixed face labeling in ring)

PostGIS trac at osgeo.org
Tue Dec 23 11:26:24 PST 2025


#6023: Silent toplogy error in the result (face has multiple shells,mixed face
labeling in ring)
--------------------------------+-------------------
  Reporter:  Lars Aksel Opsahl  |      Owner:  strk
      Type:  defect             |     Status:  new
  Priority:  medium             |  Milestone:
 Component:  topology           |    Version:  3.6.x
Resolution:                     |   Keywords:
--------------------------------+-------------------
Comment (by strk):

 Starting condition and incoming line:

 [[Image(screenshot02.png)]]

 Upon adding the incoming line, the corruption is a wrong face labeled at
 the left of the bottom edge (edge 27 in the figure):

 [[Image(screenshot03.png)]]
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/6023#comment:9>
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