Subject:
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Re: Cone primitives
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Newsgroups:
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lugnet.cad.dev
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Date:
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Tue, 11 May 1999 22:00:20 GMT
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Viewed:
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591 times
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Optional lines should actually be called "conditional lines." They are used to
model rounded surfaces so that the edge-lines only appear if they form the
outer boundary of the rounded surface.
If you think of a cylinder, you want edge-lines to show at the extremeties of
the cylinder no matter how the cylinder is turned. However, you don't want
edge-lines showing if they are on the interior or it would look like a16-agon
(which it actually is) rather than the rounded cylinder you are trying to
model.
Hope this makes sense,
-John Van
Jeff Stembel <Dragonelf1@aol.com> wrote in message
news:FBKwD5.AGy@lugnet.com...
> In lugnet.cad.dev, John VanZwieten writes:
> > I just realized the 1-4con3.dat and 1-4con4.dat don't have optional lines in
> > them. Is there a reason for this, or is it just an oversight?
> >
> > -John Van
>
> Just out of curiosity, what are 'optional lines'?
>
> Jeff
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