[LSC] BFC Ambiguities

[Travis Cobbs]

Actually, I'm pretty sure the spec disallows what your sample.  If not, we
should definitely update it to do so.  You're not allowed to switch back and
forth between certified and non-certified.  In fact, the NOCLIP option is
there specifically to allow you to produce the same end result.  (Everything
in a NOCLIP section acts like a file with NOCERTIFY.)

--Travis

On 10/12/06, William Howard <william at howard-family.fsworld.co.uk> wrote:
>
>  perhaps we should update the spec so it is an error
>
> In my mind, certification is something that would apply to the whole file
> and something like
>
> 0 BFC CERTIFY CCW
> 1 ...
> 4 ....
> 0 BFC NOCERTIFY
> 4 ...
> 3 ...
> 0 BFC CERTIFY CCW
> 4 ...
>
> seems non-sensical
>
>
>  -----Original Message-----
> *From:* lsc-bounces at ldraw.org [mailto:lsc-bounces at ldraw.org] *On Behalf Of
> *Travis Cobbs
> *Sent:* 12 October 2006 18:07
> *To:* LDraw Standards Committee
> *Subject:* Re: [LSC] BFC Ambiguities
>
> You're correct that the spec does indeed allow for this.  I put it as a
> warning in LDView, because it seemed to me that repeating the certify
> statement was not something that was intended to happen based on the
> description of the certify statement.
>
> Maybe I should update LDView to only spit out that warning if no other BFC
> options are on the same line.  I'll post a query on Lugnet to get people's
> opinions.
>
> --Travis
>
> On 10/12/06, William Howard <william at howard-family.fsworld.co.uk> wrote:
> >
> >  >I certainly wasn't aware that MLCad changed all BFC statements to that
> > format
> > It only seems to do it if you hide and then unhide the command - very
> > strange.
> > But that doesn't change the fact that the specification permits BFC
> > CERTIFY INVERTNEXT (as well as BFC INVERTNEXT CERTIFY)
> >
> >
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> >
> >
> >
>
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