[postgis-users] Center of a path.
meuh.meuh at noos.fr
Sat Jan 11 02:26:06 PST 2003
I need to check the distance between the centre of a path (which
represents a road) and a point (which represents a school). A simple way
to do this is to put the path in a box and to take the centre of a box.
school.point <-> center(box(road.path))
The problem is that this "centre" is not necessary on the path. I would
like to know if a function exist and can find the centre of a path with
this definition : "A point ON the path, which is half way from each end
of the path".
Any ideas ? :)
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