101 search results - page 6 / 21 » Approximate computation of curves on B-spline surfaces |
COMPGEOM
2006
ACM
14 years 1 months ago
2006
ACM
We construct a class of envelope surfaces in Rd , more precisely envelopes of balls. An envelope surface is a closed C1 (tangent continuous) manifold wrapping tightly around the u...
PG
2003
IEEE
14 years 19 days ago
2003
IEEE
Constrictions on a surface are defined as simple closed curves whose length is locally minimal. In particular, constrictions are periodic geodesics. We use constrictions in order...
CGF
2005
13 years 7 months ago
2005
Aiming at robust surface structure recovery, we extend the powerful optimization technique of variational shape approximation by allowing for several different primitives to repre...
CAD
2011
Springer
12 years 11 months ago
2011
Springer
Design using free-form developable surfaces plays an important role in manufacturing industry. Currently most commercial systems can only support converting free-form surfaces int...
GRAPHICSINTERFACE
1996
13 years 8 months ago
1996
Paper, sheet metal, and many other materials are approximately unstretchable. The surfaces obtained by bending these materials can be flattened onto a plane without stretching or ...