Sciweavers

COMGEO
2002
ACM
13 years 8 months ago
Quadtree, ray shooting and approximate minimum weight Steiner triangulation
We present a quadtree-based decomposition of the interior of a polygon with holes. The complete decomposition yields a constant factor approximation of the minimum weight Steiner ...
Siu-Wing Cheng, Kam-Hing Lee
COMGEO
2002
ACM
13 years 8 months ago
Translating a convex polyhedron over monotone polyhedra
Tetsuo Asano, Antonio Hernández-Barrera, Su...
COMGEO
2000
ACM
13 years 8 months ago
Computing simple paths among obstacles
Given a set X of points in the plane, two distinguished points s,t X, and a set of obstacles represented by line segments, we wish to compute a simple polygonal path from s to t...
Qi Cheng, Marek Chrobak, Gopalakrishnan Sundaram
COMGEO
2000
ACM
13 years 8 months ago
Chromatic nearest neighbor searching: A query sensitive approach
David M. Mount, Nathan S. Netanyahu, Ruth Silverma...
COMGEO
2000
ACM
13 years 8 months ago
A hierarchical method for real-time distance computation among moving convex bodies
This paper presents the Hierarchical Walk, or H-Walk algorithm, which maintains the distance between two moving convex bodies by exploiting both motion coherence and hierarchical ...
Leonidas J. Guibas, David Hsu, Li Zhang
COMGEO
2000
ACM
13 years 8 months ago
Fast and accurate collision detection for haptic interaction using a three degree-of-freedom force-feedback device
We present a fast and accurate collision detection algorithm for haptic interaction with polygonal models. Given a model, we pre-compute a hybrid hierarchical representation, cons...
Arthur D. Gregory, Ming C. Lin, Stefan Gottschalk,...
COMGEO
2000
ACM
13 years 8 months ago
Approximation algorithms for lawn mowing and milling
Esther M. Arkin, Sándor P. Fekete, Joseph S...
COMGEO
2004
ACM
13 years 8 months ago
Proximity drawings in polynomial area and volume
We introduce a novel technique for drawing proximity graphs in polynomial area and volume. Previously known algorithms produce representations whose size increases exponentially w...
Paolo Penna, Paola Vocca
COMGEO
2004
ACM
13 years 8 months ago
Minimal enclosing parallelepiped in 3D
We investigate the problem of finding a minimal volume parallelepiped enclosing a given set of n threedimensional points. We give two mathematical properties of these parallelepip...
Frédéric Vivien, Nicolas Wicker
COMGEO
2004
ACM
13 years 8 months ago
Parametric search made practical
René van Oostrum, Remco C. Veltkamp