Sciweavers

CAD
2006
Springer
13 years 7 months ago
A rational extension of Piegl's method for filling n-sided holes
N-sided hole filling plays an important role in vertex blending. To deal with the case that the corner is surrounded by rational surfaces (i.e. NURBS surfaces), an algorithm to fi...
Yi-Jun Yang, Jun-Hai Yong, Hui Zhang, Jean-Claude ...
CAD
2006
Springer
13 years 7 months ago
Approximating curves and their offsets using biarcs and Pythagorean hodograph quintics
This paper compares two techniques for the approximation of the offsets to a given planar curve. The two methods are based on approximate conversion of the planar curve into circu...
Zbynek Sír, Robert Feichtinger, Bert Jü...
CAD
2006
Springer
13 years 7 months ago
A sweepline algorithm for Euclidean Voronoi diagram of circles
Presented in this paper is a sweepline algorithm to compute the Voronoi diagram of a set of circles in a two-dimensional Euclidean space. The radii of the circles are non-negative...
Li Jin, Donguk Kim, Lisen Mu, Deok-Soo Kim, Shi-Mi...
CAD
2006
Springer
13 years 7 months ago
Trimming local and global self-intersections in offset curves/surfaces using distance maps
A robust and efficient algorithm for trimming both local and global self-intersections in offset curves and surfaces is presented. Our scheme is based on the derivation of a ratio...
Joon-Kyung Seong, Gershon Elber, Myung-Soo Kim
CAD
2006
Springer
13 years 7 months ago
P-smart - a virtual system for clothing thermal functional design
This paper presents a virtual CAD system developed for clothing thermal functional design and simulation. It allows designers and engineers in virtual space to design and preview ...
Li Yi, Mao Aihua, Wang Ruomei, Lou Xiaonan, Wang Z...
CAD
2006
Springer
13 years 7 months ago
An efficient, error-bounded approximation algorithm for simulating quasi-statics of complex linkages
Design and analysis of articulated mechanical structures, commonly referred to as linkages, is an integral part of any CAD/CAM system. The most common approaches formulate the pro...
Stephane Redon, Ming C. Lin
CAD
2006
Springer
13 years 7 months ago
Cone spline approximation via fat conic spline fitting
Fat conic section and fat conic spline are defined. With well established properties of fat conic splines, the problem of approximating a ruled surface by a tangent smooth cone sp...
Xunnian Yang, Weiping Yang
CAD
2006
Springer
13 years 7 months ago
Region-expansion for the Voronoi diagram of 3D spheres
Given a set of spheres in 3D, constructing its Voronoi diagram in Euclidean distance metric is not easy at all even though many mathematical properties of its structure are known....
Donguk Kim, Deok-Soo Kim
CAD
2006
Springer
13 years 7 months ago
Field modeling with sampled distances
Traditional mesh-based approaches to the modeling and analysis of physical fields within geometric models require some form of topological reconstruction and conversion in the mes...
Michael Freytag, Vadim Shapiro, Igor G. Tsukanov