[postgis-users] 3D boxes supported?
gjanee at alexandria.ucsb.edu
Wed Mar 22 11:31:37 PST 2006
Does PostGIS fully support three-dimensional bounding boxes?
Specifically, does PostGIS support overlaps and containment testing of
3D boxes, and will it take advantage of a GiST index to do so?
Also, is it still true that the only way to create a 3D box is to use
the SetSRID function, as in (I pulled this from the documentation):
SetSRID('BOX3D(191232 243117,191232 243119)'::box3d,-1)
(As an aside, isn't the above just a 2D box?)
Sorry if these are naive questions, but I'm running an older version of
PostGIS (1.0) and my understanding from reading the change logs is that
I need to upgrade to get some recent fixes related to 3D boxes, but
there's no point in upgrading unless 3D box testing uses the GiST
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