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 CAD / Development / 3009
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Subject: 
Re: Hidden surface removal, and vertex order in part/primitive DAT files
Newsgroups: 
lugnet.cad.dev
Date: 
Mon, 4 Oct 1999 04:21:56 GMT
Viewed: 
838 times
  
Jacob Sparre Andersen wrote in message ...
Gary Williams:

Michael Lachmann wrote in message ...
What if say a complient file contains anything starting with "0 CW". Any
program dealing with this information could just scan for "0 CW*". We • also
could use a tag "0 AW*" if why ever the orientation is not clock-wice • but
anti-clockwice .... I think a program could deal with that also (just • the
sign is different !?).

I retract my earlier suggestion.

I'd prefer to test for '0 CW-compliant' than '0 CW*' because checking for • an
exact string match is usually easier.  Not supporting wildcards also
promotes consistency.  Consistency is a Good Thing(tm).

I still think using

0 FACE ( CW | CCW | DOUBLE-SIDED | UNKNOWN )



Is this the standard now, or at least could we make it the standard ????

Mike



Message has 1 Reply:
  Re: Hidden surface removal, and vertex order in part/primitive DAT files
 
(...) That's what we're doing now--figuring out what the standard should be. Both the function and the syntax. But "standard" is an odd term in this case. In my mind the LDraw standard is defined as "code which is recognized and interpreted by (...) (25 years ago, 4-Oct-99, to lugnet.cad.dev)

Message is in Reply To:
  Re: Hidden surface removal, and vertex order in part/primitive DAT files
 
Gary Williams: (...) I still think using 0 FACE ( CW | CCW | DOUBLE-SIDED | UNKNOWN ) is most practical. Play well, Jacob ---...--- -- E-mail: sparre@cats.nbi.dk -- -- Web...: <URL:(URL) -- ---...--- (25 years ago, 2-Oct-99, to lugnet.cad.dev)

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