[postgis-tickets] [PostGIS] #2918: Use GeographicLib functions for ST_Azimuth, ST_Distance and ST_Project

[PostGIS]

#2918: Use GeographicLib functions for ST_Azimuth, ST_Distance and ST_Project
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 Reporter:  mwtoews  |       Owner:  pramsey      
     Type:  patch    |      Status:  new          
 Priority:  medium   |   Milestone:  PostGIS 2.2.0
Component:  postgis  |     Version:  trunk        
 Keywords:           |  
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Comment(by karney):

 There's a bug in the geodesic routines slated for proj 4.9.0.  If you
 add the next vertex with geod_polygon_addedge and if this edge extends
 more that 180 degrees in longitude, then (probably) the wrong area will
 be returned.  I've posted the bug + sample code illustrating it to

   http://trac.osgeo.org/proj/ticket/251

 This also includes a patch fixing the problem (which I hope will make
 into in the released version of proj 4.9.0).

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2918#comment:18>
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