[postgis-users] 3D boxes supported?
strk at refractions.net
strk at refractions.net
Wed Mar 22 14:18:26 PST 2006
No 3d boxes used in index.
No worth upgrading, if this is what you need.
--strk;
On Wed, Mar 22, 2006 at 11:31:37AM -0800, Greg Janée wrote:
> 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
> index.
>
> Thanks,
> -Greg
>
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