Sciweavers

COMPGEOM
2001
ACM
13 years 8 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 8 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 8 months ago
Simplifying a polygonal subdivision while keeping it simple
Regina Estkowski, Joseph S. B. Mitchell
COMPGEOM
2001
ACM
13 years 8 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 8 months ago
Sink-insertion for mesh improvement
Herbert Edelsbrunner, Damrong Guoy
COMPGEOM
2001
ACM
13 years 8 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 8 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 8 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 8 months ago
A segment-tree based kinetic BSP
Mark de Berg, João Comba, Leonidas J. Guiba...