[postgis-devel] [PostGIS] #314: Geographic point-in-polygon issue: stab line grazes vertex

[PostGIS]

#314: Geographic point-in-polygon issue: stab line grazes vertex
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 Reporter:  pramsey  |       Owner:  pramsey      
     Type:  defect   |      Status:  new          
 Priority:  medium   |   Milestone:  PostGIS 2.0.0
Component:  postgis  |     Version:  trunk        
 Keywords:           |  
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 While fixing the co-linear case I was reminded of another unhandled case.
 If the stab line grazes a vertex but does not actually cross, a crossing
 will still be counted.

 http://trac.osgeo.org/postgis/browser/trunk/liblwgeom/cunit/cu_geodetic.c#L628

 We could detect the condition and abort by running every test twice, with
 different stab lines.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/314>
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