[pgpointcloud] Easiest way to get 3D Bounding Box

[Florent Poux]

Dear all,

What is the easiest (and/or most efficient) way to access the 3D 
Bounding Box of a patch ?
Ideally a SQL statement would provide the best solution.

Also, is there the possibility to use 3D Functions from PostGIS directly 
with patches (for example Box3D, ST_3DUnion, ST_ConvexHull, ...) ? with 
points ?
I tried so far with no success.

Thanks in advance :) !

Florent Poux