[postgis-devel] [PostGIS] #1571: ST_ChangeEdgeGeom lets you break topology

PostGIS trac at osgeo.org
Fri Feb 17 02:46:04 PST 2012


#1571: ST_ChangeEdgeGeom lets you break topology
----------------------+-----------------------------------------------------
 Reporter:  strk      |       Owner:  strk         
     Type:  defect    |      Status:  new          
 Priority:  medium    |   Milestone:  PostGIS 2.1.0
Component:  topology  |     Version:  trunk        
 Keywords:            |  
----------------------+-----------------------------------------------------

Comment(by strk):

 I've solved the above by using the algorithm built into ST_MakeValid. It
 seems to give that black/white pattern which smells like fixing most
 cases. This is really a feeling more than a proved algorithm, but so far I
 didn't find breaking cases.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1571#comment:9>
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