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COMPGEOM
1997
ACM
15 years 7 months ago
Computing Exact Geometric Predicates Using Modular Arithmetic with Single Precision
Abstract: We propose an e cient method that determines the sign of a multivariate polynomial expression with integer coe cients. This is a central operation on which the robustness...
Hervé Brönnimann, Ioannis Z. Emiris, V...
COMPGEOM
1997
ACM
15 years 7 months ago
Empirical Testing of Algorithms for Variable-Sized Label Placement
We report an empirical comparision of different heuristic techniques for variable-sized pointfeature label placement. This work may not be copied or reproduced in whole or in part...
Jon Christensen, Stacy Friedman, Joe Marks, Stuart...
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COMPGEOM
1997
ACM
15 years 7 months ago
Robust Proximity Queries: An Illustration of Degree-Driven Algorithm Design
Abstract. In the context of methodologies intended to confer robustness to geometric algorithms, we elaborate on the exact-computation paradigm and formalize the notion of degree o...
Giuseppe Liotta, Franco P. Preparata, Roberto Tama...
COMPGEOM
1996
ACM
15 years 7 months ago
Simple Traversal of a Subdivision Without Extra Storage
In this paper we show how to traverse a subdivision and to report all cells, edges and vertices, without making use of mark bits in the structure or a stack. We do this by perform...
Mark de Berg, René van Oostrum, Mark H. Ove...
COMPGEOM
1996
ACM
15 years 7 months ago
Developing a Practical Projection-Based Parallel Delaunay Algorithm
In this paper we are concerned with developing a practical parallel algorithm for Delaunay triangulation that works well on general distributions, particularly those that arise in...
Guy E. Blelloch, Gary L. Miller, Dafna Talmor