[postgis-users] Polygon contains with Lat/Lon
dblasby at refractions.net
Tue Feb 25 09:17:13 PST 2003
> Can anybody suggest how I might go about this? Am I on the correct
> path with truly_inside?
No - do not use truly_inside(). There are some known issues with
truly_inside() - i'll be removing it from the distribution soon.
I think you'll find that the distance() function will work for you.
Distance does assume an XY coordinate system, but this will probably
not be a problem for you. You should note that for objects that either
just-touch or just-dont-touch you may get either zero or a small number
due to imprecision.
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