[postgis-users] 3d geometries, distance and buffer functions

[Paul Ramsey]

force_2d will strip the 3rd ordinate off.
The buffer/difference functions work in 2d space. They will work with  
3d inputs but won't return anything particularly different for 3d  
inputs than with 2d inputs.

P

On 26-Sep-06, at 9:12 AM, toni hernández wrote:

> hi all,
>
> I am quite new with 3d geometries.
>
> Do difference and buffer functions work fine with 3d geometries?
> Is there any function to convert 3d geometries into 2d?
>
> thanks a lot.
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