[postgis-devel] [PostGIS] #1545: ST_SimplifyPreserveTopology creates invalid geometries

PostGIS trac at osgeo.org
Mon Feb 6 05:52:56 PST 2012


#1545: ST_SimplifyPreserveTopology creates invalid geometries
---------------------+------------------------------------------------------
 Reporter:  strk     |       Owner:  pramsey      
     Type:  defect   |      Status:  new          
 Priority:  medium   |   Milestone:  PostGIS 2.0.0
Component:  postgis  |     Version:  trunk        
 Keywords:           |  
---------------------+------------------------------------------------------
 When simplifying a closed linestring by a tolerance higher than the max
 extent dimension such closed linestring becomes formed by 2 equal points,
 which makes it invalid.

 I belive the whole point of preserving topology should be preventing such
 occurrences.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1545>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.


More information about the postgis-devel mailing list