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

PostGIS trac at osgeo.org
Mon Sep 8 09:01:20 PDT 2014


#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:         
Component:  postgis  |     Version:  trunk  
 Keywords:           |  
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Comment(by pramsey):

 The geodesic area in the current geography is quite brittle with many
 known failure modes (poles? etc). An improved area calculation, even a
 slower one, would be good to have. I'm less concerned with near-antipodal
 lines mostly because I want to discourage them in general (since actually
 antipodal lines are meaningless). How near to the antipodes do we have to
 get before Vincenty starts to fall apart?

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2918#comment:6>
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