I believe that the convex hull of a set of lines is the same as the
convex hull of the vertices of the lines. So it should do what you want.
But if you have a reference showing otherwise I'd be interested to see it.
Oscar Zamudio wrote:
ha, ha!!,
My knowledge come from Maths ,and certainly not from Postgis!. The concept
of Convex Hull (in algorithms and math fields) is always applied to set of
points and I remember there was a big challenge to find a good method for
lines (some years ago). But I don't mind Math anymore, if this function
works to solve my problem, it will be ok for me.
I will let you know later about my results.
On Mon, May 3, 2010 at 11:29 AM, strk <[email protected]> wrote:
On Mon, May 03, 2010 at 11:18:03AM -0300, Oscar Zamudio wrote:
Thanks strk,
As far as I know convex hull basically applies to a collection of
points...,
nevertheless, I will try with my set of lines.
How far does your knowledge come from ? :)
http://postgis.refractions.net/docs/ST_ConvexHull.html
--strk;
() Free GIS & Flash consultant/developer
/\ http://strk.keybit.net/services.html
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