[postgis-tickets] [PostGIS] #2183: ST_SimplifyPreserveTopology does not preserve the topology

PostGIS trac at osgeo.org
Tue Jan 22 08:50:59 PST 2013


#2183: ST_SimplifyPreserveTopology does not preserve the topology
----------------------+-----------------------------------------------------
 Reporter:  pcav      |       Owner:  strk         
     Type:  defect    |      Status:  new          
 Priority:  medium    |   Milestone:  PostGIS 2.0.3
Component:  topology  |     Version:  2.0.x        
 Keywords:            |  
----------------------+-----------------------------------------------------

Comment(by strk):

 Could you please only send the smallest geometry giving the problem ?
 {{{
 SELECT geom FROM province_topo.edge WHERE NOT
 ST_IsValid(ST_SimplifyPreserveTopology(geom,500))
 ORDER BY ST_NPoints(geom) LIMIT 1
 }}}

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2183#comment:1>
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