Geomview For Windows?
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I'm trying to guess what you mean about Inventor's limitations re point data; is it that it's hard to get a clear visual impression from large clouds of points, and the points aren't organized such that you can readily reduce them to a surface? If so, you might look at NCSA's "alpha shape" package; it basically takes a cloud of points and a parameter indicating something like the scale of concavities, and yields a sort of generalized convex hull. They offer this -- a paper describing the idea, and SGI binaries for producing alpha shapes and viewing them interactively -- by anonymous FTP from ftp.ncsa.uiuc.edu under /SGI/Alpha-shape/*. [You don't need to use their viewer; they can produce results in the form of a collection of tetrahedra, triangles, etc., so you can manipulate it yourself.] I've never used this, and don't know how well it works nor whether it can actually handle data sets as large as yours, but it seems worth a try. Stuart Levy, Geometry Center, University of Minnesota
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