[postgis-devel] [PostGIS] #2033: 2.5D topology: Column has Z dimension but geometry does not

PostGIS trac at osgeo.org
Fri Oct 5 10:42:36 PDT 2012


#2033: 2.5D topology: Column has Z dimension but geometry does not
----------------------+-----------------------------------------------------
 Reporter:  strk      |       Owner:  strk         
     Type:  defect    |      Status:  new          
 Priority:  medium    |   Milestone:  PostGIS 2.0.2
Component:  topology  |     Version:  2.0.x        
 Keywords:            |  
----------------------+-----------------------------------------------------
 {{{
   -- preparation
   select droptopology('t');
   select topology.createtopology('t',0,0,true) as topoid;
   select topogeo_addpolygon('t', 'POLYGON((0 0 0, 0 1 0, 1 1 0, 1 0 0, 0 0
 0))');

   -- bug exposure
   select topogeo_addlinestring('t', 'LINESTRING(1 1 0,0 1 0,0 1 1,1 1 1,1
 1 0)');
 }}}

 The culprit is ST_ClosestPoint, see ticket #2032
 What we could do is re-add the Z to the output of ST_ClosestPoint.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/2033>
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