An optimal real-time algorithm for planar convex hulls

Author:

Preparata F. P.1

Affiliation:

1. Univ. of Illinois, Urbana

Abstract

An algorithm is described for the construction in real-time of the convex hull of a set of n points in the plane. Using an appropriate data structure, the algorithm constructs the convex hull by successive updates, each taking time O (log n ), thereby achieving a total processing time O ( n log n ).

Publisher

Association for Computing Machinery (ACM)

Subject

General Computer Science

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