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Algorithm 870: A static geometric Medial Axis domain decomposition in 2D Euclidean space

Published:19 January 2008Publication History
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Abstract

We present a geometric domain decomposition method and its implementation, which produces good domain decompositions in terms of three basic criteria: (1) The boundary of the subdomains create good angles, that is, angles no smaller than a given tolerance Φ0, where the value of Φ0 is determined by the application which will use the domain decomposition. (2) The size of the separator should be relatively small compared to the area of the subdomains. (3) The maximum area of the subdomains should be close to the average subdomain area. The domain decomposition method uses an approximation of a Medial Axis as an auxiliary structure for constructing the boundary of the subdomains (separators). The N-way decomposition is based on the “divide and conquer” algorithmic paradigm and on a smoothing procedure that eliminates the creation of any new artifacts in the subdomains. This approach produces well shaped uniform and graded domain decompositions, which are suitable for parallel mesh generation.

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  1. Algorithm 870: A static geometric Medial Axis domain decomposition in 2D Euclidean space

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          cover image ACM Transactions on Mathematical Software
          ACM Transactions on Mathematical Software  Volume 34, Issue 1
          January 2008
          131 pages
          ISSN:0098-3500
          EISSN:1557-7295
          DOI:10.1145/1322436
          Issue’s Table of Contents

          Copyright © 2008 ACM

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          Publication History

          • Published: 19 January 2008
          • Revised: 1 October 2006
          • Accepted: 1 October 2006
          • Received: 1 November 2005
          Published in toms Volume 34, Issue 1

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