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Subject:	Re: Detemining Polygon Winding (Was: New Plugin for LDDesignPad)
Newsgroups:	lugnet.cad.dev
Date:	Thu, 8 Aug 2002 01:14:20 GMT
Viewed:	730 times

In lugnet.cad.dev, Don Heyse writes: > I wouldn't bother. This well known algorithm is based on an assumption > that simply isn't true for the parts files. The assumption is that there > is one single enclosed space inside of each part. But I think the studs > are open at one end and are positioned with the open end on top of another > surface. This breaks the algorithm. Yes but I'm not parsing primitive subfiles in my plugin, just quads and triangles. -Orion

Message has 1 Reply:

		Re: Detemining Polygon Winding (Was: New Plugin for LDDesignPad)
(...) OK, but if the quads and triangles don't form a single closed surface, or actually a bunch of closed surfaces, then the algorithm won't work. However, like I said, if you find something that works, post the code or the algorithm and you'll be (...) (22 years ago, 8-Aug-02, to lugnet.cad.dev)

Message is in Reply To:

		Re: Detemining Polygon Winding (Was: New Plugin for LDDesignPad)
(...) I wouldn't bother. This well known algorithm is based on an assumption that simply isn't true for the parts files. The assumption is that there is one single enclosed space inside of each part. But I think the studs are open at one end and are (...) (22 years ago, 8-Aug-02, to lugnet.cad.dev)

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