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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!osustat.mps.ohio-state.edu!dsb
- From: dsb@osustat.mps.ohio-state.edu (David S. Blumenthal)
- Newsgroups: comp.programming
- Subject: Request for Curve Description Algorithms
- Date: 27 Aug 1992 19:19:47 GMT
- Organization: OSU Statistical Computing Laboratory
- Lines: 40
- Distribution: world
- Message-ID: <17j9sjINNfc3@zaphod.mps.ohio-state.edu>
- NNTP-Posting-Host: osustat.mps.ohio-state.edu
-
- In a program I have been working on, I have come across the need for an
- eficient way to describe curves in a two dimensional space. The curves may
- range in complexity from a straight line to something on the order of a
- figure eight symbol.
-
- I need to store a description of the curve in a data file with just
- enough description for another program to plot an object moving along the
- curve as a function of time - i.e. plot x and y as functions of t.
-
- To give a more clear idea of what I need to do, the program I am writing
- will create a graphical animation of ball paths in juggling patterns. When
- a ball in the air, I can describe its path during a known time interval as
- the parabola with given endpoints and a known acceleration. When the ball
- is in a hand, however, it may have a very complex path (known as flairs in
- juggling :-).
-
- I originally thought of using something based on besier curves (about
- which I know almost nothing), but it has also occured to me that a low order
- fourier series may be more efficient. I would greatly appreciate any hints,
- suggestions, algorithms, insites, descriptions, references, suggested readings,
- etc. for curve description methods or any other related topics.
-
- Please reply via email, and I will post to this group a summary of what
- I receive. Thank you very much for your time and effort.
-
- Walnuts and good cheer,
- Dave Blumenthal
- dsb@osustat.mps.ohio-state.edu
-
- -----------------------------------------------------------------------
- | Dave Blumenthal | The Ohio State University |
- | dsb@osustat.mps.ohio-state.edu | Statistical Computing Laboratory |
- ------ There is a fine difference between insight and insanity. -------
-
- The above post is not intended to represent my employer in any way.
- --
- -----------------------------------------------------------------------
- | Dave Blumenthal | The Ohio State University |
- | dsb@osustat.mps.ohio-state.edu | Statistical Computing Laboratory |
- ------ There is a fine difference between insight and insanity. -------
-