Sciweavers

COMPGEOM
2001
ACM
13 years 11 months ago
Computing a 3-dimensional cell in an arrangement of quadrics: exactly and actually!
We present two approaches to the problem of calculating a cell in a 3-dimensional arrangement of quadrics. The first approach solves the problem using rational arithmetic. It work...
Nicola Geismann, Michael Hemmer, Elmar Schöme...
COMPGEOM
2001
ACM
13 years 11 months ago
Discrete mobile centers
We propose a new randomized algorithm for maintaining a set of clusters among moving nodes in the plane. Given a specified cluster radius, our algorithm selects and maintains a va...
Jie Gao, Leonidas J. Guibas, John Hershberger, Li ...
COMPGEOM
2001
ACM
13 years 11 months ago
Simplifying a polygonal subdivision while keeping it simple
Regina Estkowski, Joseph S. B. Mitchell
COMPGEOM
2001
ACM
13 years 11 months ago
Hierarchical morse complexes for piecewise linear 2-manifolds
We present algorithms for constructing a hierarchy of increasingly coarse Morse complexes that decompose a piecewise linear 2-manifold. While Morse complexes are defined only in t...
Herbert Edelsbrunner, John Harer, Afra Zomorodian
COMPGEOM
2001
ACM
13 years 11 months ago
Sink-insertion for mesh improvement
Herbert Edelsbrunner, Damrong Guoy
COMPGEOM
2001
ACM
13 years 11 months ago
Efficient and small representation of line arrangements with applications
This paper addresses the problem of lossy compression of arrangements. Given an arrangement of n lines in the plane, we show how to construct another arrangement consisting of man...
David P. Dobkin, Ayellet Tal
COMPGEOM
2001
ACM
13 years 11 months ago
Walking in a triangulation
Given a triangulation in the plane or a tetrahedralization in 3-space, we investigate the efficiency of locating a point by walking in the structure with different
Olivier Devillers, Sylvain Pion, Monique Teillaud
COMPGEOM
2001
ACM
13 years 11 months ago
A fully dynamic algorithm for planar
We show how to maintain the width of a set of n planar points subject to insertions and deletions of points in O( n log3 n) amortized time per update. Previously, no fully dynami...
Timothy M. Chan
COMPGEOM
2001
ACM
13 years 11 months ago
A segment-tree based kinetic BSP
Mark de Berg, João Comba, Leonidas J. Guiba...