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Computational Geometry on Surfaces: Performing Computational Geometry on the Cylinder, the Sphere, the Torus, and the Cone

Author(s): Grima, Clara I.; Marquez, Alberto
ISBN10: 1402002025
ISBN13: 9781402002021
Cover: Hardcover
 
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SummaryTable of Contents
This book demonstrates that classical problems of computational geometry can be solved when the input and output data are on surfaces other than the plane, but that planar techniques cannot always be adapted successfully, and new techniques must be considered. Well-known problems from computational geometry are adapted to cases where the objects are on surfaces, and an attempt is made to answer questions that arise in the growing list of areas in which the results of computational geometry are applicable. These areas are, among others, engineering, computer aided design, manufacturing, geographic information systems, operations research, robotics, computer graphics, and solid modelling. Audience: This volume will be of interest to postgraduate students and researchers whose work involves computational geometry, algorithms, combinatorics, and graph theory.

Demonstrates that classical problems of computational geometry can be solved by input and output data on surfaces other than the plane, but that planar techniques can be adapted successfully, and new techniques must be considered.
Preface xi
Acknowledgments xv
Preliminaries
1(18)
Introduction
1(1)
Notations and Terminology
2(10)
The Cylinder
2(3)
The Torus
5(3)
The sphere
8(2)
The cone
10(2)
Orbifolds
12(2)
Point Location and Range Searching
14(3)
Notes and comments
17(2)
Euclidean Position
19(12)
Introduction
19(1)
Euclidean Position
20(6)
Euclidean position on the cylinder and the cone
20(4)
Euclidean position on the torus
24(1)
Euclidean position on the sphere
25(1)
Cylindrical position in the Torus
26(1)
Euclidean position in Orbifolds and in General Surfaces
27(1)
Notes and comments
28(3)
Convex Hull
31(30)
Introduction
31(1)
Some Extensions of Convexity
32(1)
Hyperconvex Hull
32(4)
Metrically Convex Hull
36(19)
Metrically Convex Hull in the Cylinder
37(5)
Metrically Convex Hull in the Torus
42(5)
Metrically Convex Hull on the Sphere
47(4)
Metrically convex hull on the cone
51(4)
Analysis of complexity
55(1)
Minimum enclosing polygon
56(2)
Notes and comments
58(3)
Voronoi Diagrams
61(24)
Introduction
61(1)
Voronoi diagrams
62(7)
Voronoi diagrams on the cylinder
64(2)
Voronoi diagrams on the torus
66(1)
Voronoi diagrams on the sphere
67(1)
Voronoi diagrams on the cone
68(1)
Proximity problems and Voronoi diagrams
69(3)
Voronoi diagrams and convex hulls
72(1)
Furthest point Voronoi diagram
72(5)
Generalized Voronoi diagrams
77(4)
Voronoi diagrams for a set of points and segments on the cylinder
78(1)
Polar diagram on the cylinder
79(2)
Notes and Comments
81(4)
Radii
85(22)
Introduction
85(2)
The Width of a Convex Set on the Sphere
87(11)
Alternative definitions of width on the sphere
89(7)
Algorithm of the width on the sphere
96(2)
Circumradius
98(1)
Diameter
98(3)
Maximum and minimum distances
101(3)
Notes and remarks
104(3)
Visibility
107(20)
Introduction
107(1)
Stabbing line segments
108(13)
Transversal helices
111(9)
Stabbing segments
120(1)
Visibility in the presence of obstacles
121(3)
Notes and comments
124(3)
Triangulations
127(46)
Introduction
127(2)
Triangulations on the cylinder
129(29)
Maximizing the Smallest Angle
141(10)
Graph of triangulations
151(7)
Triangulations on the sphere and on the torus
158(10)
Triangulations on the sphere
158(1)
Triangulations on the torus
159(9)
The graph of triangulations on non-planar surfaces
168(2)
Notes and Comments
170(3)
References 173(12)
Topic Index 185(4)
Author Index 189

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