[postgis-tickets] [PostGIS] #2825: ST_Intersection broken with Z coordinates

PostGIS trac at osgeo.org
Mon Jul 7 12:10:07 PDT 2014


#2825: ST_Intersection broken with Z coordinates
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  Reporter:  TBL      |       Owner:  pramsey      
      Type:  defect   |      Status:  closed       
  Priority:  medium   |   Milestone:  PostGIS 2.1.4
 Component:  postgis  |     Version:  2.1.x        
Resolution:  invalid  |    Keywords:               
----------------------+-----------------------------------------------------
Changes (by pramsey):

  * status:  new => closed
  * resolution:  => invalid


Comment:

 Looks like everything is working as expected... the intersection code has
 to figure out what to do in the cases where an output coordinate has two
 *different* z values (which is what happens in both your input examples).
 The answer, longstanding, is that it takes the average of the input Z
 values, which is what we're seeing in your examples.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/2825#comment:7>
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