[postgis-tickets] [PostGIS] #2618: Use geodetic calculations from Proj 4.9

[PostGIS]

#2618: Use geodetic calculations from Proj 4.9
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 Reporter:  pramsey      |       Owner:  pramsey      
     Type:  enhancement  |      Status:  new          
 Priority:  medium       |   Milestone:  PostGIS 2.2.0
Component:  postgis      |     Version:  2.1.x        
 Keywords:               |  
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 As of proj4.9, geodetic distance and area on spheroid will be available
 from proj4

 http://gis.stackexchange.com/questions/84012/how-can-i-obtain-the-same-
 area-values-provided-by-the-census-for-tiger-boundarie

 The area in particular does not have failure cases around the poles or
 over the equator, so would be an improvement on the current code. Could
 also copy the code directly into liblwgeom for support on earlier versions
 of proj.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2618>
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