Algorithms for Computing Global Accessibility Cones

[+] Author and Article Information
Savinder Dhaliwal, Satyandra K. Gupta, Jun Huang

Alok Priyadarshi

University of Maryland, College Park, MD 20742

J. Comput. Inf. Sci. Eng 3(3), 200-209 (Sep 16, 2003) (10 pages) doi:10.1115/1.1606475 History: Received July 01, 2002; Revised July 01, 2003; Online September 16, 2003
Copyright © 2003 by ASME
Topics: Algorithms , Hull
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Planar representation of I; (a) Projection of facet f on unit sphere as it moves along edges of facet f; (b) Boundaries of the projection; (c) The convex inaccessibility region
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Projection of lines MS and LT on sphere
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Inaccessibility region overlaid on set of spherical triangles
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Spherical coordinates of a point p(θ,ϕ)
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Inaccessible region I and enclosing spherical rectangle R0
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2-Dimensional Orthogonal Range Tree
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Enclosing spherical rectangle R0 when inaccessibility region contains the North Pole
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Enclosing spherical rectangle R0 when arc ϕ=0 intersects inaccessible region




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