[postgis-devel] [PostGIS] #621: Problem with finding intersections with geography types
PostGIS
trac at osgeo.org
Wed Apr 25 11:20:23 PDT 2012
#621: Problem with finding intersections with geography types
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Reporter: infinitynsk | Owner: pramsey
Type: defect | Status: closed
Priority: high | Milestone: PostGIS 1.5.4
Component: postgis | Version: 1.5.X
Resolution: invalid | Keywords:
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Changes (by pramsey):
* status: new => closed
* resolution: => invalid
Comment:
You can't just run a "contains" test in geometry and expect it to return
the right answer, because lines in geometry are not in the same place as
in geography. Geometry lines are linear interpolations in platte carre.
Geography lines are great circle arcs over a sphere. They don't go over
the same places.
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Ticket URL: <http://trac.osgeo.org/postgis/ticket/621#comment:2>
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