Subject:
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Re: BFC codeguide?
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Newsgroups:
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lugnet.cad.dev
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Date:
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Thu, 2 May 2002 15:13:07 GMT
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Viewed:
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359 times
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In lugnet.cad.dev, Mark Kennedy wrote:
> Does anybody have a code guide that list all the available BFC commands and how
> they can be used?
<http://www.geocities.com/partsref/bfc/bfcspecv4.txt>
There's only one meta-statement, 0 BFC. It takes several different
keywords/parameters/options. These options are:
CERTIFY - use only on the first BFC statement in the file, which must
appear before any linetypes 1-5. Indicates the file is BFC compliant.
NOCERTIFY - same as CERTIFY, except it indicates the file is *not* BFC
compliant.
CW - all following polygons have clockwise winding. Generally only used
on the initial BFC CERTIFY line.
CCW - all following polygons have counter-clockwise (aka anti-clockwise)
winding. Generally only used on the initial BFC CERTIFY line.
NOCLIP - used to temporarily turn off BFC processing. Used around
patterns, and any polygon whose front and back are both visible (which
generally should not happen).
CLIP - turns BFC processing back on after a NOCLIP.
INVERTNEXT - use only before a subfile reference (linetype 1). Causes
the following subfile to have its facing inverted.
HTH,
Steve
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Message has 1 Reply:
 | | Re: BFC codeguide?
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| (...) Mark asked me in email, which I think I deleted before I replied to him (sorry Mark!), a question about using INVERTNEXT. Here's the question (as best as I remember it), and the answer. Q: Can INVERTNEXT be used multiple times in a file, or is (...) (23 years ago, 3-May-02, to lugnet.cad.dev)
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Message is in Reply To:
| | BFC codeguide?
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| Does anybody have a code guide that list all the available BFC commands and how they can be used? (23 years ago, 2-May-02, to lugnet.cad.dev)
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