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- Newsgroups: comp.graphics
- Path: sparky!uunet!cs.utexas.edu!convex!news.oc.com!lgc.com!srinivas
- From: srinivas@lgc.com (Manapragada Srinivas)
- Subject: Curvature of a Surface
- Message-ID: <1992Aug27.054517.4151@lgc.com>
- Followup-To: comp.graphics.visualization
- Sender: usenet@lgc.com
- Nntp-Posting-Host: squirt.lgc.com
- Organization: Landmark Graphics Corporation
- Date: Thu, 27 Aug 1992 05:45:17 GMT
- Lines: 30
-
-
- Hi,
-
- How is the curvature of a parametric surface defined, ie. if I have
- a surface -
- - -
- | x(u,v) |
- X = X(u,v) = | y(u,v) |
- | z(u,v) |
- - -
-
- what is the expression for the curvature of the surface at u,v ?
-
-
- Alternatively if I a have an explicitly defined surface such as
-
- z = f(x,y)
-
- what is its curvature at a given point x,y ?
-
-
-
- I would appreciate any help regarding the above. If there are a
- number of replies, and the answer to the above is non-trivial I shall
- post a summary.
-
- Thanks in advance,
- Srinivas
- --
- Yonder, beyond the event horizon!
-