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 CAD / LDraw Files / Parts / 5474
5473  |  5475
Subject: 
Re: BFC inversion...
Newsgroups: 
lugnet.cad.dat.parts
Date: 
Wed, 6 Oct 2004 07:03:02 GMT
Viewed: 
4777 times
  
In lugnet.cad.dat.parts, Steve Bliss wrote:
I thought CERTIFY was only useful once at the beginning of the
file? I've been out of the loop, did I miss something?

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.

It may be required by the part tracker, but it isn't required by the BFC spec.
The spec specifically says that the first instance of any BFC command in a file
implicitly turns on BFC certification in the file (unless of course it's a 0 BFC
NOCERTIFY).  (That first BFC command is required to be before any geometry or
sub-file lines in the file.)  It is, however, recommended to have a 0 BFC
CERTIFY line.



Message is in Reply To:
  Re: BFC inversion...
 
(...) 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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