1. An algorithm for recognizing palm polygons
- Author
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Ghosh, Subir Kumar, Maheshwari, Anil, Pal, Sudebkumar Prasant, and Madhavan, C. E. Veni
- Abstract
A polygonP is said to be apalm polygon if there exists a pointx∈P such that the Euclidean shortest path fromx to any pointy∈P makes only left turns or only right turns. The set of all such pointsx is called thepalm kernel. In this paper we propose an O(E) time algorithm for recognizing a palm polygonP, whereE is the size of the visibility graph ofP. The algorithm recognizes the given polygonP as a palm polygon by computing the palm kernel ofP. If the palm kernel is not empty,P is a palm polygon.
- Published
- 1994
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