(Enter summary)
Abstract: In this paper, we show that the universal covering space of a surface can be used to unify previous
results on computing paths in a simple polygon. We optimize a given path among obstacles in the plane
under the Euclidean and link metrics and under polygonal convex distance functions. Besides revealing
connections between the minimum paths under these three distance functions, the framework provided
by the universal cover leads to simplified linear-time algorithms for shortest path trees, for... (Update)
Context of citations to this paper: More .... of chain simplification where each map consists of only one chain) has been studied extensively by computational geometers [9, 4, 3, 8, 1] ; recent work [6] has shown that map simplification is NP hard. Moreover, Estkowski [7] has also shown that that it is hard to obtain... ...shown that there is always a rectilinear path between two points that is shortest w.r.t. both the rectilinear link and the L 1 metric [10, 11] . We call such a path a smallest path [12, 13] In this setting de Berg [10] presents a data structure that allows to answer the... Cited by: More
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BibTeX entry: (Update)
J. Hershberger and J. Snoeyink, Computing minimum length paths of a given homotopy class, in Proceedings of the 2nd Workshop on Algorithms and Data Structures, SpringerVerlag, 1991, pp. 331--342. Lecture Notes in Computer Science 519. http://citeseer.nj.nec.com/hershberger91computing.html More @inproceedings{ hershberger91computing,
author = "John Hershberger and Jack Snoeyink",
title = "Computing Minimum Length Paths of a Given Homotopy Class (Extended Abstract)",
booktitle = "Workshop on Algorithms and Data Structures",
pages = "331-342",
year = "1991",
url = "citeseer.nj.nec.com/hershberger91computing.html" }
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