[Algorithms] (no subject)

[kristian <fir...@ya...>]

I want to fit a bspline sort of surface (i'm not
picky, could be something else) to a grid of
heightfield type data points.  I'm starting with
evenly spaced points, but don't want to restrict it to
that.  I want to get out something to fit triangles
to, and that I can do modest collision checking with
(nearest point on surface, above below surface). 
Isthis asking a lot?

Anyone who can point me towards the math I need to do
this? Web (i.e., free) resources are most appreciated.

regards,
kristian olivero


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