Il 11/01/2011 21:12, Paolo Cavallini ha scritto:
Il giorno mar, 11/01/2011 alle 20.52 +0100, aperi2007 ha scritto:
Hi,
I need to find the intersection point between two lines,
the first choice is ST_Intersection, but I notice even the
ST_ClosestPoint function.
\df+ st_intersection
in the case of two lines, the two results converge, but if you have two
polygons, you can see the difference.
All the best.
Hi Paolo,
Of course this is a difference.
ST_Intersection is surely more flexible, usable with every kind of geometry.
But my question is: "why ST_ClosestPoint exist ?"
The only explain I can suppose is that for linear archives it give some
advantage (more speed ?)
This is the question :)
Andrea.
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