[postgis-devel] [PostGIS] #1641: TopoGeo_addLineString: SQL/MM Spatial exception - geometry crosses an edge

PostGIS trac at osgeo.org
Mon Mar 5 05:37:24 PST 2012


#1641: TopoGeo_addLineString: SQL/MM Spatial exception - geometry crosses an edge
-----------------------+----------------------------------------------------
  Reporter:  lrssvt    |       Owner:  strk         
      Type:  defect    |      Status:  closed       
  Priority:  medium    |   Milestone:  PostGIS 2.0.0
 Component:  topology  |     Version:  2.0.x        
Resolution:  fixed     |    Keywords:               
-----------------------+----------------------------------------------------

Comment(by lrssvt):

 Replying to [comment:17 strk]:
 > @lrssvt : if you want to relaunch the whole import I'll be happy to have
 a report about what happens now. Also you may want to create the topology
 with a precision that really reflects your data precision (cm? mm?) and
 see how that affects further toTopoGeom calls (they should be using the
 precision you specified at CreateTopology time as a tolerance).
 well, I did some tests and now it looks better, but I have a doubt!

 I tested the demo attached and the end result will change if I define
 tolerance in CreateTopology (see image) or toTopoGeom (see image).


 Is that correct?

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1641#comment:18>
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