Subject:
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Re: POLICE Pattern (was Re: door 1 x 3 x 1 new patterns and errors in parts on PT)
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Newsgroups:
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lugnet.cad.dat.parts
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Date:
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Wed, 14 May 2003 13:40:55 GMT
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Viewed:
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1829 times
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In lugnet.cad.dat.parts, Niels Karsdorp writes:
> In lugnet.cad.dat.parts, Mark Kennedy writes:
> > In lugnet.cad.dat.parts, John Riley writes:
> > > Whoops. I forgot to remove MLCAD's ROTATION meta commands, and to edit the
> > > name. Here's the real subpart, with correct heading.
> >
> > Personaly I'd suggest using ring primitives on the letters O and C to save
> > space.
>
> Me, too.
> But there aint no rings with a x-radius-difference of 1 and
> z-radius-difference of 1.125. Or you need to have overlapping
> rings. Even using ndis, segm (chord) primitives and triangles
> filling up is not possible, because the outer edges of the
> ndis primitive reach out beyond the size of the letter.
> And for the letter C, the cutout is also quite hard to fit
> using primitives.
>
> For this part I might reccommend replacing the ndis and disc
> primitives around and inside the O and C with quads or triangles
> to eliminate gaps when ray-traced. The not true round shape is
> no problem in such a small pattern.
>
> Niels
I think the O could be done with overlapping rings (and roughly 3/4 of the
C), now that I think about it (I may try it before converting everything
over to quads). But considering the C cannot be done without using quads,
it may look odd that the O is round while the C is not. Considering Niels'
last statement, I'll just go with converting the ndis and disc primitives to
quads. Thanks for your help.
John
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