Subject:
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Re: BFC inversion...
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Newsgroups:
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lugnet.cad.dat.parts
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Date:
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Tue, 5 Oct 2004 20:12:04 GMT
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Viewed:
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4411 times
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Steve Bliss wrote:
> In lugnet.cad.dat.parts, Franklin W. Cain wrote:
>
> > this is the first time I've tried using the "invertnext"
> > BFC statement. would someone plz double check my code?
> > thnx.......
> >
> >
> > > 1 16 0 0 0 1 0 0 0 1 0 0 0 1 s\973psb1.dat
> > > 1 2 0 0 0 1 0 0 0 1 0 0 0 1 s\973psb2.dat
> > > 0 BFC CERTIFY INVERTNEXT
> > > 1 16 0 0 0 -1 0 0 0 1 0 0 0 1 s\973psb1.dat
> > > 0 BFC CERTIFY INVERTNEXT
> > > 1 2 0 0 0 -1 0 0 0 1 0 0 0 1 s\973psb2.dat
>
>
> Since you used a mirrored reference to the subfiles, you should not need the
> INVERTNEXT statements.
>
>
> > > 1 2 -9.875 9.875 -10 1.625 0 -1.25 -1.625 0 -1.25 0 1 0 1-4ndis.dat
> > > 0 BFC CERTIFY INVERTNEXT
> > > 1 2 -10.125 10.125 -10 -1.625 0 -1.25 1.625 0 -1.25 0 1 0 1-4ndis.dat
> > > 1 2 -8.625 11.625 -10 -1.625 0 1.25 1.625 0 1.25 0 1 0 1-4ndis.dat
> > > 0 BFC CERTIFY INVERTNEXT
> > > 1 2 -8.375 11.375 -10 1.625 0 1.25 -1.625 0 1.25 0 1 0 1-4ndis.dat
>
>
> With 2D objects, you should flip & rotate them to show their front face, not use
> INVERTNEXT.
Also, is it now standard to repeat the 'CERTIFY' keyword on every
BFC line?
I thought CERTIFY was only useful once at the beginning of the
file? I've been out of the loop, did I miss something?
-Kyle
--
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Kyle J. McDonald (o o) Systems Support Engineer
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Message has 2 Replies:
 | | Re: BFC inversion...
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| (...) If so, then I missed it too (which is entirely possible!) I've never used CERTIFY at the beginning of a file, and TMK it's never been a problem. I use "BFC INVERTNEXT" where necessary, but no blanket CERTIFY statement. Is the inclusion of the (...) (20 years ago, 5-Oct-04, to lugnet.cad.dat.parts)
| | | Re: BFC inversion...
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| (...) No it isn't. (...) You are correct. CERTIFY, according to the BFC spec, is only allowed once in the file, before the first 'executable' line, on the very first BFC meta-statement. In fact, CERTIFY is *required* on that line. Steve (20 years ago, 6-Oct-04, to lugnet.cad.dat.parts)
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Message is in Reply To:
| | Re: BFC inversion...
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| (...) Since you used a mirrored reference to the subfiles, you should not need the INVERTNEXT statements. (...) With 2D objects, you should flip & rotate them to show their front face, not use INVERTNEXT. Steve (20 years ago, 5-Oct-04, to lugnet.cad.dat.parts)
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