[postgis-devel] [PostGIS] #791: Topology: function GetEdgeByPoint($1, $2, $3)

PostGIS trac at osgeo.org
Mon Feb 14 01:46:37 PST 2011


#791: Topology: function GetEdgeByPoint($1,$2,$3)
-------------------------+--------------------------------------------------
 Reporter:  aperi2007    |       Owner:  strk         
     Type:  enhancement  |      Status:  new          
 Priority:  medium       |   Milestone:  PostGIS 2.0.0
Component:  topology     |     Version:  trunk        
 Keywords:               |  
-------------------------+--------------------------------------------------

Comment(by strk):

 Maybe for long edges it might be faster, but you have to take into account
 the conversion to geos too (in the ST_Intersects case) and the
 ST_Intersects computes full intersection matrix too, which means no early
 exit ever happens.

 Would be interesting to hear Nicklas opinion (but even better: profile
 data) on the matter

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/791#comment:8>
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