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 CAD / LDraw Files / Parts / 5341
  Non-colanar quads question
 
I'm fixing the Perl code that generates the curved surface of the Half [1] Onion Dome (part 44511) from its control data. At the moment the surface comprises counter-clockwise wound quads (ABCD) [3] and conditional lines (AB, BC, CD and DA). (...) (20 years ago, 13-Jul-04, to lugnet.cad.dat.parts)
 
  Re: Non-coplanar quads question
 
DOH! Who stole the P? (20 years ago, 13-Jul-04, to lugnet.cad.dat.parts)
 
  Re: Non-colanar quads question
 
(...) Be careful with that. You could also replace it with triangles (ABD and DBC) using the other diagonal. I think one way will give you a nice convex exterior and the other way will create all sorts of nasty concavities. You can do some origami (...) (20 years ago, 13-Jul-04, to lugnet.cad.dat.parts)

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