Weiler-Atherton Polygon Clipper??

Weiler-Atherton Polygon Clipper??

Post by Marc Sarr » Sun, 02 Dec 1990 03:45:00

Does anyone out there know if there is a public domain implementation
of the Weiler-Atherton polygon clipping algorithm?  Something that
could be sent through email would be best, although ftp is doable.

you reply to the account at ohio-state, it should be forwarded, but
why take chances?  Don't post a follow-up as I don't have


Marc Sarrel
Marc A. Sarrel                  |       "Oh, _lightwieght_ Alpaca..."


1. Weiler-Atherton polygon clipper

I'm looking for some source code for a Weiler-Atherton polygon clipper.

Now, before you all flame me with the immortal question "When is the
assignment due?", I will point out that I need this code to evaluate
the performance of my own visible-surface algorithms against a real-
world, "industry-standard" algorithm such as W/A, for my Master of
Science thesis.

I am perfectly willing to implement a W/A clipper for myself, but both
I and my supervisor feel that the time would be better spent on more
important things - the algorithms that I am developing...

So if anyone knows where I can get my hands on such source code
(preferably in C; email && ftp are fine) I would be very grateful.

Thanks in advance,
Jason Williams.
_________________  "I'd like to answer this question in two ways:
  /____ _ _/_ __       First in my normal voice, and then
 // / //_//_ /_/       in a silly, high-pitched whine." (Monty Python)

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