On Jan 28, 2008, at 9:35 AM, Olivier Tournaire wrote:
Thanks Paul and Ben for your answers.
Z-values are ignored in tests, and occasionally used in building
resultants for things like intersections.
Is it possible to know which "things" ?
Intersection. I intersect two lines that have Z components, what is
the Z component of the resultant point?
Does PostGIS uses GEOS for spatial computations ?
Yes
GEOS does not support 3D operations ?
No, except for the exception above.
P
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