[postgis-users] 3d buffer

[eehab hamzeh]

What i mean by 3d buffer are i have a room which is like a box and i need to find all the areas that this room Box that will intersect if the room are extended and get larger....




buffer FROM (SELECT gid,buffer(r.the_geom,10) as buffer FROM room r WHERE r.roomname='guest room') AS foo USING UNIQUE gid USING SRID=31467"

i need such query to take the 3d dimension in consideration and make it not just only in 2d 





Thanks

ihab



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