[postgis-devel] [PostGIS] #1735: ST_MakeValid: exception on geometry

PostGIS trac at osgeo.org
Mon Apr 2 05:50:52 PDT 2012

#1735: ST_MakeValid: exception on geometry
 Reporter:  aperi2007  |       Owner:  strk         
     Type:  defect     |      Status:  assigned     
 Priority:  medium     |   Milestone:  PostGIS 2.0.1
Component:  postgis    |     Version:  trunk        
 Keywords:             |  

Comment(by strk):

 So finally a valid GEOS bug. ST_IsSimple wasn't a good test but the one
 performed by the attached CheckNoding.sql script is, and clearly shows
 that UnaryUnion is failing to produce correct noding. There's a case of
 linear and puntual interior/interior intersections between returned lines.

Ticket URL: <http://trac.osgeo.org/postgis/ticket/1735#comment:21>
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