共 9 条
COMPUTING EXTERNAL FARTHEST NEIGHBORS FOR A SIMPLE POLYGON
被引:6
作者:
AGARWAL, PK
AGGARWAL, A
ARONOV, B
KOSARAJU, SR
SCHIEBER, B
SURI, S
机构:
[1] IBM CORP,DIV RES,YORKTOWN HTS,NY 10598
[2] JOHNS HOPKINS UNIV,BALTIMORE,MD 21218
[3] BELL COMMUN RES INC,MORRISTOWN,NJ 07960
基金:
美国国家科学基金会;
关键词:
D O I:
10.1016/0166-218X(91)90063-3
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
Let P be (the boundary of) a simple polygon with n vertices. For For a vertex p of P, let phi(p) be the set of points on P that are farthest from p, where the distance between two points is the length of the (Euclidean) shortest path that connects them without intersecting the interior of P. In this paper, we present an O(n log n) algorithm to compute a member of phi(p) for every vertex p of P. As a corollary, the external diameter of P can also be computed in the same time.
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页码:97 / 111
页数:15
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