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What and Who

Reliable and Efficient Computations with Algebraic Curves

Kurt Mehlhorn
Talk
AG 1, AG 2, AG 3, AG 4, AG 5, SWS, RG1, RG2  
Public Audience
English

Date, Time and Location

Friday, 14 November 2008
09:00
30 Minutes
E1 4
024
Saarbrücken

Abstract

The Bentley-Ottman plane sweep algorithm for line segment intersection is one of the most versatile tools in computational geometry. It is the workhorse underlying algorithms for boolean

operations on polygons and arrangement computations. In principle, it generalizes nicely from line segments to algebraic curves.

However, what is simple in the case of line segments, namely the analysis of a single curve and a pair of curves, becomes a nontrivial task for algebraic curves. I report on new algorithms for analyzing single curves and pair of curves and their implementation in CGAL.

The new algorithms allow us to compute the exact arrangement of hundreds of low degree algebraic curves; a computation that was assumed to be impossible only a few years ago.

Contact

Bahareh Kadkhodazadeh
0681-302-70156
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Bahareh Kadkhodazadeh, 11/05/2008 15:54
Bahareh Kadkhodazadeh, 11/05/2008 15:51 -- Created document.