562 search results - page 15 / 113 » On theoretical backgrounds of CAD |
CAD
2010
Springer
13 years 7 months ago
2010
Springer
MOS surfaces are rational surfaces in R3,1 which provide rational envelopes of the associated two-parameter family of spheres. Moreover, all the offsets admit rational parameteriz...
CAD
2008
Springer
13 years 7 months ago
2008
Springer
Both the 4-point and the uniform cubic B-spline subdivisions double the number of vertices of a closed-loop polygon k P and produce sequences of vertices fj and bj respectively. W...
CAD
2006
Springer
13 years 7 months ago
2006
Springer
This paper introduces a method to extract `Shape-DNA', a numerical fingerprint or signature, of any 2d or 3d manifold (surface or solid) by taking the eigenvalues (i.e. the s...
CAD
2004
Springer
13 years 7 months ago
2004
Springer
We present an efficient geometric algorithm for conic spline curve fitting and fairing through conic arc scaling. Given a set of planar points, we first construct a tangent contin...
CAD
2002
Springer
13 years 7 months ago
2002
Springer
In this paper we discuss how to reconstruct 3D models from multi-view engineering draws by employing human engineers' approaches. Human's `divide and conquer' inter...