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

PostGIS trac at osgeo.org
Sun Sep 14 16:36:37 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:  PostGIS 2.2.0
Component:  postgis  |     Version:  trunk        
 Keywords:           |  
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Comment(by mwtoews):

 @darkblueb the !GeographicLib C++ library is not needed for this feature.
 The patch includes two files from the C version, which only uses standard
 library features. There are a few other similar stand-alone libraries that
 natively reimplement the same algorithms and structures in various
 languages, such as Python, JavaScript, and Matlab.

 As for GRASS, they appear to have a file
 [http://trac.osgeo.org/grass/browser/grass/trunk/lib/gis/geodist.c
 geodist.c] which has the same name, but was created independently of
 !GeographicLib and is very different.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/2918#comment:13>
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