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SUMMARY:Approximating Lofted Surfaces - Richard Southern
DTSTART:20050519T131500Z
DTEND:20050519T141500Z
UID:TALK4433@talks.cam.ac.uk
CONTACT:Alan Blackwell
DESCRIPTION:Lofting is an established method used in Computer Aided Design
  to to fit surfaces to a network of curves. It is a challenging task\, how
 ever\, to ensure smoothness of the fitted surface using an interpolatory m
 ethod if the curves of the network are not compatible (i.e. they would hav
 e to continue smoothly over vertices). To overcome this problem we take an
  existing patch definition\, effectively "stretch" them over neighbouring 
 patches and blend them together smoothly. The results are blended together
  a second time for each face. This results in a surface approximating the 
 curve network which is theoretically an infinitely smooth surface\, althou
 gh in practice we limit this to C^1.
LOCATION:Rainbow Room\, Computer Laboratory
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