convex hull of massive number of points

[Sanjay]

Hi,

I have about 1000 or so file with 1 million scattered points. I would
like to find a convex hulls for each of these files. I was gonna
simply iterate though each file, store the points into a collection,
and then get the convex hull. I am guessing it's gonna be rather slow.
Could there be other ways to do this?

Thanks,
Sanjay.