[postgis-devel] [PostGIS] #1046: Invalid geography polygons: BOOM! Could not generate outside point!

[PostGIS]

#1046: Invalid geography polygons: BOOM! Could not generate outside point!
----------------------------+-----------------------------------------------
 Reporter:  mwtoews         |       Owner:  pramsey      
     Type:  defect          |      Status:  new          
 Priority:  medium          |   Milestone:  PostGIS 2.0.0
Component:  postgis         |     Version:  1.5.X        
 Keywords:  geography boom  |  
----------------------------+-----------------------------------------------

Comment(by pramsey):

 And looking at the code we get the usual validity conundrum... checking
 for validity costs CPU time, how often do we want to do it...  we'd have
 to convert each vertex pair to geocentrics (expensive), then calculate the
 dot product (cheap) to see if they were antipodal.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1046#comment:4>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.