[postgis-devel] [PostGIS] #2039: ST_Area(geography) returning wrong answer

[PostGIS]

#2039: ST_Area(geography) returning wrong answer
---------------------+------------------------------------------------------
 Reporter:  pramsey  |       Owner:  pramsey      
     Type:  defect   |      Status:  new          
 Priority:  medium   |   Milestone:  PostGIS 2.1.0
Component:  postgis  |     Version:  2.0.x        
 Keywords:           |  
---------------------+------------------------------------------------------
 Reported in the mailing list
 {{{

 WITH shapes as (
   select 1 as rownum,
     ST_GeogFromText('POLYGON((-144 -63,-144 -54,-126 -54,-126 -63,-144
 -63))') as shape
   union
   select 2 as rownum,
     ST_GeogFromText('POLYGON((-90 -63,-90 -54,-72 -54,-72 -63,-90 -63))')
 as shape
 )
 select
   rownum,
   ST_Area(shape) as spheroid,
   ST_Area(shape, false) as sphere,
   ST_Area(shape) - ST_Area(shape, false) as delta
 from shapes;
 }}}
 The meridian crossing code of the current implementation is tripping.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/2039>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.