Subject:
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Re: CW/CCW, vertex sequence, co-planar, convex
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Newsgroups:
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lugnet.cad.dev
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Date:
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Fri, 8 Oct 1999 09:09:47 GMT
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Viewed:
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747 times
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Lars mentions the problem of "uncertified" parts using
"certified" primitives.
Is it so much of a problem?
<much thinking>
I can't find any other easy solution than using different
names for the "certified" versions of the _primitives_.
That way we shouldn't get in trouble - except for the double
number of files in the primitives directory.
A more advanced solution would be to add a flag to the FACE
meta-command that has the effect that the current file and
everything it includes is rendered as DOUBLE-SIDED no matter
what FACE meta-commands the included files might contain.
Would "INHERIT-DOUBLE-SIDED" be a suitable label for this
feature? (I considered "UNCHECKED-PART" too, but it dosn't
contain the meaning of the flag)
If we decide to use this flag, we would have to start out
inserting it in all the files currently located in the parts
directory, but this is hopefully something any of the
programmers in this group could do.
Maybe this isn't such a bad solution? It seems to be
somewhat similar to Lars' "0 FILETYPE PART" suggestion, but
without any attemt to classify LDraw files (not formally
anyway ;-).
Play well,
Jacob
------------------------------------------------
-- E-mail: sparre@cats.nbi.dk --
-- Web...: <URL:http://www.ldraw.org/FAQ/> --
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Message has 1 Reply:
 | | Re: CW/CCW, vertex sequence, co-planar, convex
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| Jacob Sparre Andersen wrote in message ... (...) Certified primitives are harmless when used by old uncertified parts, so there's no need to create special certified versions. And in stead of fixing parts to reference the new names, you might just (...) (25 years ago, 8-Oct-99, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: CW/CCW, vertex sequence, co-planar, convex
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| Gary Williams wrote in message ... (...) Well, inside/outside-ness also counts. It doesn't make sense to certify a part before ALL its subfiles have defined what is inside/outside. Until then you cannot determine whether or not you need any INVERTS. (...) (25 years ago, 8-Oct-99, to lugnet.cad.dev)
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