[postgis-devel] [PostGIS] #1258: ST_CreateTopoGeo drops lineal input boundaries

PostGIS trac at osgeo.org
Mon Oct 31 02:19:10 PDT 2011

#1258: ST_CreateTopoGeo drops lineal input boundaries
 Reporter:  strk      |       Owner:  strk         
     Type:  defect    |      Status:  new          
 Priority:  medium    |   Milestone:  PostGIS 2.0.0
Component:  topology  |     Version:  trunk        
 Keywords:            |  
 When passing mergeable lineal input to ST_CreateTopoGeo such merge happens
 thus failing to add node where input lineal boundaries were.

 This seems to go in the opposite direction of explicitly creating nodes
 where Puntal inputs are given.

 This ticket is to make sure input nodes are retained instead, no matter
 degree. Ie:

 This input collection (2 lines):


 Should result in 2 edges and 3 nodes (rather than 2 nodes and 1 edge as
 currently happens).

Ticket URL: <http://trac.osgeo.org/postgis/ticket/1258>
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