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- Newsgroups: comp.sys.sgi,com.graphics
- Path: sparky!uunet!boulder!ucsu!ucsu.Colorado.EDU!hooplet
- From: hooplet@ucsu.Colorado.EDU (HOOPLE TOM)
- Subject: NURBS basis function on SGI's
- Message-ID: <1992Nov6.033021.24251@ucsu.Colorado.EDU>
- Sender: news@ucsu.Colorado.EDU (USENET News System)
- Nntp-Posting-Host: ucsu.colorado.edu
- Organization: University of Colorado, Boulder
- Date: Fri, 6 Nov 1992 03:30:21 GMT
- Lines: 11
-
- I'm a grad student at UCCS (The University of Colorado at Colorado Springs),
- and I'm doing a NURBS project for my geometric modeling course. We're using
- some Indigo SGI's, and I'm running into a problem with trying to figure out
- what the basis function should be. Is this part of the Graphics Library and
- can it be called somehow? I'm thinking about using the basis function for
- NURBS out of the Foley and Van Dam book, but I know that this one is
- different from the one SGI uses. In particular, SGI seems to handle the
- case where the denominator of the basis function is zero differently than
- it is handled in the Foley/Van Dam book. Any help anybody can provide
- would be appreciated.
- -Andy R. Hoople
-