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Subject: 
Re: Method for splitting quads with not coplanar vertices?
Newsgroups: 
lugnet.cad
Date: 
Mon, 27 Jan 2003 14:27:07 GMT
Viewed: 
729 times
  
In lugnet.cad, Lars C. Hassing writes:
In lugnet.cad, Willy Tschager writes:
I had a little chat with carsten about the possibility to fix not coplanar
vertices automatically in LDDP.

I wouldn't bother too much.
I think it is an error if the four points of a quad do not lie in a plane.
Too bad that the LDraw format has a built-in possiblity of creating
degenerate quads.
POV e.g. uses 2D points to describe a polygon.

(Lars, how does L3P detect these not coplanar vertices?)
I released the L3P checking source code a couple of years ago for ldglite,
see L3Input.cpp in http://www.geocities.com/dheyse/

Eeek!  Don't go to the geocities site.  That's way out of date.
Go here:

  http://ldglite.sourceforge.net

Or here if you just want to browse the source code.

  http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/ldglite/ldglite/

Lars' code is in the files beginning with L3.

Don



Message has 1 Reply:
  Re: Method for splitting quads with not coplanar vertices?
 
(...) (URL) the latest version says 0.9.1, GeoCities has version 0.9.2, so... If geocities is way out of date, why don't you delete it, or at least very clearly refer to SF. (...) (URL) (21 years ago, 27-Jan-03, to lugnet.cad)

Message is in Reply To:
  Re: Method for splitting quads with not coplanar vertices?
 
(...) I wouldn't bother too much. I think it is an error if the four points of a quad do not lie in a plane. Too bad that the LDraw format has a built-in possiblity of creating degenerate quads. POV e.g. uses 2D points to describe a polygon. (...) I (...) (21 years ago, 27-Jan-03, to lugnet.cad)

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