Rectilinear computational geometry
Rectilinear computational geometry
Mindstorms: children, computers, and powerful ideas
Mindstorms: children, computers, and powerful ideas
An optimal O(n log n) algorithm for contour reconstruction from rays
SCG '87 Proceedings of the third annual symposium on Computational geometry
SCG '94 Proceedings of the tenth annual symposium on Computational geometry
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In this paper we present an algorithm to create simple polygons with a particular sequence of exterior angles, given only the sequence of angles. The algorithm has worst case time complexity &Ogr;(Dn), where n is the number of angles and D is dependent on the angles. As a bonus, the algorithm proves an interesting converse of the ancient theorem that the sum of the exterior angles of a simple polygon is 2&pgr; radians.