Subject:
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Re: Some Words To BFC
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Newsgroups:
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lugnet.cad.dev
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Date:
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Thu, 6 Apr 2000 16:35:04 GMT
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Reply-To:
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Rui.Martins@link/stopspam/.pt
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Viewed:
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2264 times
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On Thu, 6 Apr 2000, Leonardo Zide wrote:
> > I have researched (Odd/Even), (BSP) and (Winged Edge). There is also the brute
> > force method of supersampling raycasting, but this one is a NO GO.
>
> I think I'm using what you call odd/even, I cast a ray from the center
> of each face to both directions and check the number of faces hit. If it
> can't determine the correct orientation (hit the same number of faces
> from both sides) that I try again from other points in the face.
When do you actually stop, when you find the correct orientation ?
or after a few fixed iterations ?
Eventually you could end up with an infinite loop if you are not carefull.
That method does NOT really garantees any correct results due to the way our
parts are defined.
See ya
Rui Martins
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Message has 1 Reply: ![](/news/x.gif) | | Re: Some Words To BFC
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| (...) Would it help to get primitive files cleaned up, and then make use of what is known of the faces in the primitive to decide the orientation of faces in the part? What I mean is, if you follow a ray from the center of a face, and the (...) (24 years ago, 6-Apr-00, to lugnet.cad.dev)
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Message is in Reply To:
![](/news/x.gif) | | Re: Some Words To BFC
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| (...) I agree that an automatic process might not always work 100% but it can make parts almost perfect and with only a small effort you'll be able to completely fix them. (...) I think I'm using what you call odd/even, I cast a ray from the center (...) (24 years ago, 6-Apr-00, to lugnet.cad.dev)
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