- •Preface
- •Contents
- •1 Computational Geometry
- •2 Line Segment Intersection
- •3 Polygon Triangulation
- •4 Linear Programming
- •5 Orthogonal Range Searching
- •6 Point Location
- •7 Voronoi Diagrams
- •8 Arrangements and Duality
- •9 Delaunay Triangulations
- •10 More Geometric Data Structures
- •11 Convex Hulls
- •12 Binary Space Partitions
- •13 Robot Motion Planning
- •14 Quadtrees
- •15 Visibility Graphs
- •16 Simplex Range Searching
- •Bibliography
- •Index
Index
1DRANGEQUERY, 97 |
lower bound, 269 |
|
|
|
2DRANGEQUERY, 108 |
automated manufacturing, 63, 89 |
|
|
|
2d-tree, 100 |
autonomous robot, 283 |
|
|
|
2DBOUNDEDLP, 75 |
average running time, 78 |
|
|
|
2DBSP, 264 |
axis-parallel line segment, 220 |
|
|
|
2DRANDOMBSP, 264 |
|
|
|
|
2DRANDOMIZEDBOUNDEDLP, 77 |
backwards analysis, 78, 85, 89, 134, |
|
|
|
2DRANDOMIZEDLP, 81 |
140, 205, 250 |
|
|
|
3-coloring |
balanced quadtree, 313 |
|
|
|
of triangulated polygon, 47, 59 |
BALANCEQUADTREE, 313 |
|
|
|
3DBSP, 267 |
ball |
|
|
|
3DRANDOMBSP2, 268 |
smallest enclosing, 90 |
|
|
|
|
beach line, 152, 160 |
|
|
|
abstract Voronoi diagram, 169 |
binary search tree, 96 |
|
|
|
adjacency |
binary space partition, 259, 261 |
|
|
|
of trapezoids, 127 |
for low-density scene, 271 |
|
|
|
algorithm |
lower bound, 270 |
|
|
|
randomized, 78 |
binary space partition tree, 261 |
|
|
|
angle |
Boolean operation |
|
|
|
of vectors in 3-space, 64 |
on polygons, 39 |
|
|
|
angle-optimal, 194 |
bounded linear program, 73 |
|
|
|
angle-vector, 194 |
bounding box, 58, 124, 155, 231 |
|
|
|
annulus, 163 |
breakpoint, 152, 161 |
|
|
|
smallest-width, 163 |
BSP, 261 |
|
|
|
approximate cell decomposition, 303, |
for low-density scene, 271 |
|
|
|
305 |
lower bound, 270 |
|
|
|
approximate range searching, 353 |
BSP tree, 261 |
|
|
|
approximation, 244 |
BUILD2DRANGETREE, 107 |
|
|
|
arm |
BUILDKDTREE, 100 |
|
|
|
robot, 86 |
|
|
|
|
arrangement, 180, 187 |
C-obstacle, 285 |
|
|
|
complexity of, 180 |
for translating robot, 291 |
|
|
|
in higher dimensions, 187 |
CAD/CAM, 12, 15, 63, 307 |
|
|
|
point location in, 143 |
canonical subset, 106, 109, 233, 339, |
|
|
|
simple, 180 |
341 |
|
|
|
Art Gallery Problem, 45, 59 |
car-like robot, 284 |
|
|
|
Art Gallery Theorem, 48 |
castable, 64 |
|
|
|
aspect ratio, 319 |
casting, 63 |
|
|
|
associated structure, 106, 222, 225, 235, |
cell decomposition |
|
|
|
344, 350 |
approximate, 303, 305 |
|
|
|
377 |
||||
auto-partition, 262 |
exact, 303 |
|
INDEX |
chain method |
dynamic, 13 |
|
|
point location by, 143 |
Graham’s scan, 13 |
|
|
circle event, 155, 161 |
Jarvis’s march, 13 |
|
|
false alarm, 156 |
lower bound, 13 |
|
|
closest pair, 170 |
pseudo code, 3, 6, 249 |
|
|
collision, 286 |
convex polytope, 244 |
|
|
collision detection, 244 |
point location in, 144 |
|
|
coloring |
convex set, 2 |
|
|
of triangulated polygon, 47, 59 |
CONVEXHULL, 6, 249 |
|
|
combinatorial optimization, 90 |
corner vertex, 310 |
|
|
combined metric, 332 |
cutting, 347, 352 |
|
|
common intersection |
cutting tree, 346 |
|
|
of half-planes, 66, 89 |
cyclic overlap, 260 |
|
|
composite number, 111 |
data structure, 219 |
|
|
composite-number space, 111 |
|
|
|
compressed quadtree, 318 |
1-dimensional range tree, 99 |
|
|
COMPUTEFREESPACE, 287 |
binary search tree, 96 |
|
|
COMPUTEPATH, 289 |
BSP tree, 261 |
|
|
computer aided design, 12, 15, 63, 307 |
cutting tree, 346 |
|
|
computer aided manufacturing, 12, 15, |
for point location, 128 |
|
|
63, 89 |
heap, 227 |
|
|
computer animation, 244 |
interval tree, 220, 222, 237 |
|
|
computer graphics, 10, 14, 175, 188 |
kd-tree, 100 |
|
|
configuration of robot, 284 |
multi-level, 343 |
|
|
configuration space, 285, 330 |
octree, 318 |
|
|
forbidden, 285 |
partition tree, 336, 338 |
|
|
free, 285, 324, 330 |
priority search tree, 226, 237 |
|
|
of randomized algorithm, 209 |
quadtree, 115, 307, 309 |
|
|
of translating polygon, 291 |
range tree, 105, 109 |
|
|
configuration-space obstacle, 285, 330 |
segment tree, 231, 233, 237 |
|
|
for translating polygon, 291 |
database, 95, 116, 335 |
|
|
for translating robot, 291 |
database query, 95 |
|
|
conflict, 248 |
Davenport-Schinzel sequence, 188 |
|
|
conflict graph, 248 |
decomposable searching problem, 238 |
|
|
conflict list, 248 |
decomposition |
|
|
conforming mesh, 308, 319 |
trapezoidal, 124 |
|
|
connected subdivision, 30 |
vertical, 124 |
|
|
consistent mesh, 319 |
degeneracy, 5, 8, 137 |
|
|
constraint |
degenerate case, 5, 8, 137 |
|
|
linear, 65, 66, 71 |
degree of freedom, 284 |
|
|
point on circle, 87 |
Delaunay corner, 213 |
|
|
CONSTRUCTARRANGEMENT, 182 |
Delaunay graph, 196 |
|
|
CONSTRUCTINTERVALTREE, 223 |
Delaunay triangulation, 168, 197 |
|
|
continuous measure, 175 |
computation, 199 |
|
|
contour line, 191 |
pseudo code, 200 |
|
|
convex, 2 |
DELAUNAYTRIANGULATION, 200 |
|
|
convex combination, 244 |
density, 271 |
|
|
convex hull, 2, 89, 193, 243 |
depth order, 260 |
|
|
3-dimensional, 244 |
design for assembly, 12 |
|
|
computation, 3, 246 |
destination |
378 |
|
||
|
d-dimensional, 256 |
of half-edge, 31 |
diagonal |
of mesh, 307 |
INDEX |
||
of polygon, 46 |
elementary interval, 232 |
|
|
|
difference |
ellipse |
|
|
|
of polygons, 39 |
smallest enclosing, 90 |
|
|
|
Dijkstra’s algorithm, 324, 326, 331 |
embedding |
|
|
|
direction |
of graph, 30 |
|
|
|
representation of, 65 |
end vertex, 50 |
|
|
|
Dirichlet tessellation, 167 |
envelope |
|
|
|
disc |
lower, 253 |
|
|
|
smallest enclosing, 86 |
upper, 254 |
|
|
|
discrepancy, 174, 175, 188 |
Euclidean distance, 148, 169, 332 |
|
|
|
computation, 175 |
Euclidean minimum spanning tree, 215, |
|
|
|
half-plane, 175 |
216 |
|
|
|
discrete measure, 175 |
Euler’s formula, 28, 150, 245 |
|
|
|
distance |
event, 22, 51, 151 |
|
|
|
Euclidean, 148, 169, 332 |
circle, 155, 161 |
|
|
|
L1, 168 |
site, 153, 161 |
|
|
|
L2, 148, 169, 332 |
event point, 22, 51, 151 |
|
|
|
Lp, 168 |
event queue, 24, 51, 155 |
|
|
|
link, 332 |
exact arithmetic, 9 |
|
|
|
Manhattan, 168 |
exact cell decomposition, 303 |
|
|
|
distance function, 169 |
exact match query, 116 |
|
|
|
domain |
expectation |
|
|
|
of mesh, 308 |
linearity of, 78, 134, 205 |
|
|
|
of terrain, 191 |
expected performance, 78, 133 |
|
|
|
double wedge, 178 |
expected running time, 78 |
|
|
|
doubly-connected edge list, 29, 30, 48, |
face, 30 |
|
|
|
155, 180, 247 |
|
|
||
dual |
record of, 31 |
|
|
|
of line, 178 |
facet, 64, 245 |
|
|
|
of object, 177 |
ordinary, 64 |
|
|
|
of point, 177 |
top, 64 |
|
|
|
of segment, 178 |
false alarm, 156 |
|
|
|
dual graph |
farthest-point Voronoi diagram, 164, 169 |
|
|
|
of triangulated polygon, 47 |
fat subdivision |
|
|
|
dual plane, 178 |
point location in, 144 |
|
|
|
duality |
fatness, 279 |
|
|
|
in higher dimensions, 186 |
feasible point, 71 |
|
|
|
in the plane, 177 |
feasible region, 71 |
|
|
|
dynamic convex hull, 13 |
feasible solution, 71 |
|
|
|
dynamic point location, 143 |
Fibonacci heap, 331 |
|
|
|
dynamization, 237 |
FINDINTERSECTIONS, 25 |
|
|
|
|
FINDNEWEVENT, 27 |
|
|
|
edge, 30 |
FINDSPLITNODE, 97 |
|
|
|
illegal, 194 |
finite element method, 307 |
|
|
|
of polytope, 245 |
first-level tree, 106, 344 |
|
|
|
edge flip, 194 |
flap, 251 |
|
|
|
edge list |
flip |
|
|
|
doubly-connected, 29, 30, 48, 155, |
of edge, 194 |
|
|
|
180, 247 |
floating point arithmetic, 5 |
|
|
|
379 |
||||
element |
FOLLOWSEGMENT, 130 |
|
INDEX |
forbidden configuration space, 285, 330 |
higher-order Voronoi diagram, 169 |
|
|
FORBIDDENSPACE, 298 |
horizon, 247 |
|
|
Fortune’s algorithm, 151 |
hull |
|
|
fractional cascading, 109, 112, 143, 221 |
convex, 2, 89, 193, 243 |
|
|
free configuration space, 285, 324, 330 |
lower, 6, 254 |
|
|
free path, 305 |
upper, 6, 253 |
|
|
free space, 285, 324, 330 |
|
|
|
representation of, 287 |
illegal edge, 194 |
|
|
trapezoidal map of, 287, 324 |
implicit point location, 144 |
|
|
free split, 265 |
incidence preserving, 178 |
|
|
|
incident, 30 |
|
|
Gabriel graph, 215, 217 |
infeasible linear program, 71 |
|
|
general position, 9, 124 |
infeasible point, 71 |
|
|
GENERATEMESH, 316 |
inner vertex, 325 |
|
|
genus, 245 |
INSERTSEGMENTTREE, 234 |
|
|
geographic information systems, 1, 11, |
interpolation |
|
|
15 |
data-independent, 214 |
|
|
geometric graph, 215 |
linear, 191 |
|
|
geometric modeling, 15 |
INTERSECTHALFPLANES, 67 |
|
|
GIS, 11 |
intersection |
|
|
Graham’s scan, 13 |
of half-planes, 66, 89 |
|
|
graph |
of line segments, 19 |
|
|
Gabriel, 215, 217 |
of polygons, 39 |
|
|
geometric, 215 |
intersection-sensitive algorithm, 21 |
|
|
relative neighborhood, 215, 217 |
interval |
|
|
visibility, 323 |
elementary, 232 |
|
|
grid, 116 |
interval tree, 220, 222, 237 |
|
|
guard |
inversion, 186 |
|
|
for low-density scene, 272 |
isolated vertex, 31 |
|
|
half-edge, 31 |
iterated logarithm, 60 |
|
|
|
|
|
|
destination of, 31 |
jaggies, 174 |
|
|
origin of, 31 |
Jarvis’s march, 13 |
|
|
record of, 32 |
joint |
|
|
half-plane discrepancy, 175 |
of robot, 283 |
|
|
half-planes |
prismatic, 283 |
|
|
common intersection of, 66, 89 |
revolute, 283 |
|
|
HANDLECIRCLEEVENT, 158 |
|
|
|
HANDLEENDVERTEX, 53 |
k-level |
|
|
HANDLEEVENTPOINT, 26 |
in arrangement, 187 |
|
|
HANDLEMERGEVERTEX, 54 |
k-set, 187 |
|
|
HANDLEREGULARVERTEX, 54 |
kd-tree, 100, 116 |
|
|
HANDLESITEEVENT, 158 |
|
|
|
HANDLESPLITVERTEX, 53 |
L1-metric, 168 |
|
|
HANDLESTARTVERTEX, 53 |
L2-metric, 148, 169, 332 |
|
|
harmonic number, 135 |
Lp-metric, 168 |
|
|
heap, 227 |
layer, 19, 335 |
|
|
Helly-type theorem, 90 |
layered range tree, 113 |
|
|
hidden surface removal, 259 |
legal triangulation, 195 |
|
|
higher-dimensional linear programming, |
LEGALIZEEDGE, 201 |
380 |
|
||
|
82 |
LEGALTRIANGULATION, 195 |
level |
map layer, 19, 335 |
INDEX |
||
in arrangement, 185 |
map overlay, 1, 20 |
|
|
|
in data structure, 106, 343 |
computation, 33 |
|
|
|
line segment |
pseudo code, 38 |
|
|
|
axis-parallel, 220 |
MAPOVERLAY, 38 |
|
|
|
line segment intersection, 19, 40 |
Markov’s inequality, 141 |
|
|
|
computation, 20 |
maximal planar subdivision, 193 |
|
|
|
counting, 41 |
measure |
|
|
|
lower bound, 40 |
continuous, 175 |
|
|
|
pseudo code, 25 |
discrete, 175 |
|
|
|
red-blue, 40 |
medial axis, 169 |
|
|
|
linear constraint, 65, 66, 71 |
merge vertex, 50 |
|
|
|
linear interpolation, 191 |
mesh, 307 |
|
|
|
linear optimization, 71 |
conforming, 308, 319 |
|
|
|
linear program, 71 |
consistent, 319 |
|
|
|
bounded, 73 |
domain of, 308 |
|
|
|
dimension of, 71 |
non-uniform, 308 |
|
|
|
infeasible, 71 |
requirements, 308 |
|
|
|
unbounded, 73, 79 |
respecting the input, 308 |
|
|
|
linear programming, 71 |
structured, 319 |
|
|
|
1-dimensional, 75 |
triangular, 308 |
|
|
|
higher-dimensional, 82 |
uniform, 309 |
|
|
|
low-dimensional, 72 |
unstructured, 319 |
|
|
|
pseudo code, 75, 77, 84 |
mesh element, 307 |
|
|
|
linearity of expectation, 78, 134, 205 |
mesh generation, 307 |
|
|
|
link metric, 332 |
pseudo code, 316 |
|
|
|
locally shortest path, 325 |
metric |
|
|
|
locus approach, 231 |
combined, 332 |
|
|
|
logarithm |
Euclidean, 148, 169, 332 |
|
|
|
iterated, 60 |
L1, 168 |
|
|
|
LOWDENSITYBSP2D, 276 |
L2, 148, 169, 332 |
|
|
|
lower bound |
Lp, 168 |
|
|
|
convex hull, 13 |
link, 332 |
|
|
|
line segment intersection, 40 |
Manhattan, 168 |
|
|
|
of auto-partition, 269 |
MINIDISC, 86 |
|
|
|
of binary space partition, 270 |
MINIDISCWITH2POINTS, 87 |
|
|
|
range tree, 116 |
MINIDISCWITHPOINT, 87 |
|
|
|
simplex range searching, 352 |
minimum spanning tree |
|
|
|
triangulation, 59 |
Euclidean, 215, 216 |
|
|
|
Voronoi diagram, 170 |
minimum weight triangulation, 215, 218 |
|
|
|
lower envelope, 253 |
Minkowski difference, 292 |
|
|
|
lower hull, 6, 254 |
Minkowski sum, 291, 305, 330 |
|
|
|
lower vertical extension, 124 |
complexity, 297 |
|
|
|
LP-type problem, 90 |
computation, 295 |
|
|
|
|
of non-convex polygons, 296 |
|
|
|
MAKEMONOTONE, 53 |
pseudo code, 295 |
|
|
|
Manhattan metric, 168 |
MINKOWSKISUM, 295 |
|
|
|
manufacturing, 12, 15, 63, 89 |
mixture, 243 |
|
|
|
map |
mobile robot, 283, 323 |
|
|
|
point location on, 122 |
molecular modeling, 12 |
|
|
|
381 |
||||
trapezoidal, 122, 124, 287 |
monotone polygon, 49 |
|
INDEX |
strictly, 55 |
simplicial, 337 |
|
|
triangulation of, 55 |
partition tree, 336, 338 |
|
|
motion planning, 1, 14, 162, 283, 323 |
path |
|
|
exact cell decomposition, 303 |
free, 305 |
|
|
retraction method, 304 |
locally shortest, 325 |
|
|
road map for, 288 |
semi-free, 305 |
|
|
mouse |
persistency, 143 |
|
|
clicking with, 5, 122 |
perturbation |
|
|
multi-level data structure, 106, 238, 343 |
symbolic, 9, 14 |
|
|
|
PHASE1, 275 |
|
|
neighbor finding |
pixel, 173, 259 |
|
|
in quadtree, 312 |
placement of robot, 284 |
|
|
non-crossing, 124 |
planar point location, 122 |
|
|
non-linear optimization, 86, 90 |
planar subdivision, 30, 121 |
|
|
non-uniform mesh, 308 |
maximal, 193 |
|
|
NORTHNEIGHBOR, 313 |
plane sweep, 22, 34, 51, 68, 151, 328 |
|
|
|
rotational, 328 |
|
|
objective function, 71 |
pocket, 61 |
|
|
obstacle, 283, 324 |
point |
|
|
configuration-space, 285 |
infeasible, 71 |
|
|
obtuse angle, 319 |
Steiner, 309 |
|
|
octree, 318 |
point location, 121 |
|
|
operations research, 72 |
dynamic, 143 |
|
|
optimal vertex, 73 |
higher dimensional, 143 |
|
|
optimization |
implicit, 144 |
|
|
combinatorial, 90 |
planar, 121 |
|
|
linear, 71 |
query, 128 |
|
|
non-linear, 86, 90 |
point location query, 121 |
|
|
order preserving, 178 |
point robot, 286, 324 |
|
|
order-k Voronoi diagram, 169, 188 |
polygon |
|
|
ordinary facet, 64 |
monotone, 49 |
|
|
origin |
rectilinear, 60 |
|
|
of half-edge, 31 |
simple, 46 |
|
|
orthogonal line segment, 220 |
star-shaped, 93, 145 |
|
|
orthogonal range query, 96 |
strictly monotone, 55 |
|
|
output-sensitive algorithm, 21, 99 |
triangulation of, 45 |
|
|
overlap |
y-monotone, 49 |
|
|
cyclic, 260 |
polyhedral terrain, 192 |
|
|
overlay, 1, 20, 33, 167 |
polyhedron, 64 |
|
|
computation, 33 |
polytope, 244 |
|
|
pseudo code, 38 |
simplicial, 245 |
|
|
|
tetrahedralization of, 60 |
|
|
painter’s algorithm, 260 |
potential field method, 305 |
|
|
PAINTERSALGORITHM, 263 |
power diagram, 169 |
|
|
paraboloid, 178 |
preprocessing, 122 |
|
|
parameter space, 232 |
primal plane, 178 |
|
|
PARANOIDMAXIMUM, 93 |
primitive operation, 4 |
|
|
partial match query, 116 |
printed circuit board, 307 |
|
|
partition |
priority search tree, 226, 237 |
|
|
auto, 262 |
prismatic joint, 283 |
382 |
|
||
|
binary space, 259 |
pseudodisc, 292 |
pseudodisc property, 293 |
ray tracing, 173 |
INDEX |
||
pseudodiscs |
rectangular range query, 96 |
|
|
|
complexity of union, 294 |
rectangular subdivision |
|
|
|
|
point location in, 144 |
|
|
|
quadtree, 115, 273, 307, 309 |
rectilinear polygon, 60 |
|
|
|
balanced, 313 |
red-blue line segment intersection, 40 |
|
|
|
compressed, 318 |
redundant half-plane, 92 |
|
|
|
higher-dimensional, 318 |
reference point, 284 |
|
|
|
neighbor finding, 312 |
region |
|
|
|
quadtree subdivision, 310 |
feasible, 71 |
|
|
|
query |
regular vertex, 50 |
|
|
|
database, 95 |
relative neighborhood graph, 215, 217 |
|
|
|
exact match, 116 |
rendering, 173, 259 |
|
|
|
partial match, 116 |
REPORTINSUBTREE, 229 |
|
|
|
point location, 121, 128 |
RETRACTION, 162 |
|
|
|
range, 96 |
retraction, 162, 163 |
|
|
|
simplex range, 352 |
retraction method, 304 |
|
|
|
stabbing, 237 |
revolute joint, 283 |
|
|
|
stabbing counting, 237 |
road map, 288, 324 |
|
|
|
triangular range, 336 |
robot |
|
|
|
windowing, 219, 335 |
articulated, 283 |
|
|
|
QUERYINTERVALTREE, 224 |
autonomous, 283 |
|
|
|
QUERYPRIOSEARCHTREE, 230 |
car-like, 284 |
|
|
|
QUERYSEGMENTTREE, 234 |
configuration of, 284 |
|
|
|
random number generator, 77 |
configuration space of, 285 |
|
|
|
degree of freedom, 284 |
|
|
||
random permutation |
mobile, 283 |
|
|
|
computation, 77 |
motion planning for, 283 |
|
|
|
randomized algorithm, 75, 77, 78, 84, |
open or closed, 286 |
|
|
|
128, 199, 208, 246, 264 |
parameter space of, 285 |
|
|
|
analysis, 76, 78, 88, 133, 205, |
placement of, 284 |
|
|
|
210, 250, 265 |
point, 286, 324 |
|
|
|
RANDOMIZEDLP, 84 |
reference point of, 284 |
|
|
|
RANDOMPERMUTATION, 77 |
road map for, 288 |
|
|
|
range query, 220, 318 |
work space of, 284 |
|
|
|
1-dimensional, 96 |
robot arm, 86, 283 |
|
|
|
2-dimensional, 99 |
robotics, 1, 10, 14, 283 |
|
|
|
counting, 119 |
robustness, 5, 8, 9 |
|
|
|
orthogonal, 96 |
rotational plane sweep, 328 |
|
|
|
rectangular, 96 |
rounding error, 5 |
|
|
|
simplex, 352 |
roundness, 163 |
|
|
|
triangular, 336 |
running time |
|
|
|
range searching |
average, 78 |
|
|
|
approximate, 353 |
expected, 78 |
|
|
|
range tree, 99, 105, 109, 220 |
|
|
|
|
1-dimensional, 99 |
sample points, 174 |
|
|
|
2-dimensional, 106 |
scan-conversion, 259 |
|
|
|
d-dimensional, 109 |
search structure |
|
|
|
layered, 113 |
for point location, 128 |
|
|
|
lower bound, 116 |
search tree |
|
|
|
383 |
||||
ray shooting, 146, 332 |
binary, 96 |
|
INDEX |
SEARCHKDTREE, 103 |
|
|
second-level tree, 106, 344 |
|
|
see, 325 |
|
|
segment |
|
|
axis-parallel, 220 |
|
|
segment tree, 231, 233, 237 |
|
|
SELECTBELOWPAIR, 350 |
|
|
SELECTBELOWPOINT, 348 |
|
|
SELECTINHALFPLANE, 339 |
|
|
SELECTINTSEGMENTS, 344 |
|
|
semi-free path, 305 |
|
|
shear transformation, 137 |
|
|
shortest path, 323 |
|
|
for polygonal robot, 330 |
|
|
in graph, 331 |
|
|
SHORTESTPATH, 326 |
|
|
side |
|
|
in trapezoidal map, 125 |
|
|
simple arrangement, 180 |
|
|
simple polygon, 46 |
|
|
simplex algorithm, 72, 90 |
|
|
simplex range query, 352 |
|
|
lower bound, 352 |
|
|
simplicial partition, 337 |
|
|
simplicial polytope, 245 |
|
|
single cell, 304 |
|
|
site, 147 |
|
|
line segment, 160 |
|
|
site event, 153, 161 |
|
|
skeleton |
|
|
of polygon, 169 |
|
|
slab, 122, 235 |
|
|
SLOWCONVEXHULL, 3 |
|
|
smallest enclosing ball, 90 |
|
|
smallest enclosing disc, 86 |
|
|
smallest enclosing ellipse, 90 |
|
|
smallest-width annulus, 163 |
|
|
solution |
|
|
feasible, 71 |
|
|
split |
|
|
free, 265 |
|
|
split vertex, 50 |
|
|
stabber, 189, 190 |
|
|
stabbing counting query, 237 |
|
|
stabbing number |
|
|
of polygon, 61 |
|
|
stabbing query, 237 |
|
|
star-shaped polygon, 93, 145 |
|
|
start vertex, 50 |
384 |
|
|
|
status |
of sweep line, 22, 25, 52, 155, 328
status structure, 25, 52, 155, 328 Steiner point, 214, 309
Steiner triangulation, 309 strictly monotone polygon, 55 structural change, 205, 210, 250 subdivision, 30, 121
complexity of, 30 connected, 30 maximal planar, 193 quadtree, 310 representation of, 29
subdivision overlay, 33 sum
Minkowski, 291 of two points, 291 vector, 291
supersampling, 174
sweep algorithm, 22, 34, 51, 68, 151, 328
rotational, 328
sweep line, 22, 51, 151, 160 symbolic perturbation, 9, 14
tail estimate, 140 terrain, 191
domain of, 191 polyhedral, 192
tetrahedralization
of polytope, 60 Thales’ Theorem, 194 thematic map layer, 19, 335 thematic map overlay, 20 top facet, 64
trading area, 147 transform
duality, 177 inversion, 186 shear, 137
translating polygon configuration space of, 291
configuration-space obstacle for, 291
transversal, 189, 190 trapezoidal decomposition, 124
trapezoidal map, 122, 124, 287, 324 complexity of, 127 computation, 128
of the free space, 287, 324 pseudo code, 129
TRAPEZOIDALMAP, 129 traveling salesman problem, 216 tree
1-dimensional range, 99 binary search, 96
binary space partition, 261 BSP, 261
cutting, 346 heap, 227
interval, 220, 222, 237 kd-tree, 100
octree, 318 partition, 336, 338
priority search, 226, 237 quadtree, 115, 307, 309 range, 105, 109 segment, 231, 233, 237
triangle
well-shaped, 308 triangular mesh, 308 triangular range query, 336 triangulated polygon
3-coloring, 47, 59 dual graph, 47
TRIANGULATEMONOTONEPOLYGON,
57 triangulation
computation, 49, 55 Delaunay, 197 legal, 195
lower bound, 59
minimum weight, 215, 218 of monotone polygon, 55 of point set, 192, 193
of polygon, 45, 46 pseudo code, 53, 57 Steiner, 309
triangulation refinement point location by, 143
turn vertex, 49 twin
of half-edge, 31
unbounded linear program, 73, 79 uniform mesh, 309
union
complexity of, 304 of polygons, 39
Upper Bound Theorem, 256 upper envelope, 254
upper hull, 6, 253
upper vertical extension, 124 |
INDEX |
vector sum, 291 vertex, 30
inner, 325 isolated, 31 optimal, 73 record of, 31
vertical decomposition, 124 vertical extension, 124
lower, 124 upper, 124
viewing volume, 220 visibility complex, 332 visibility edge, 325 visibility graph, 323
computation, 326 pseudo code, 326
visibility–Voronoi complex, 332 VISIBILITYGRAPH, 326
VISIBLE, 329 visible, 48, 259, 325
visible region, 61, 247 VISIBLEVERTICES, 328
Voronoi assignment model, 148 Voronoi cell, 149
Voronoi diagram, 1, 147, 148, 254 abstract, 169
complexity of, 149, 168 computation, 151 degenerate cases, 159 farthest-point, 164, 169 higher-order, 169 lower bound, 170 medial axis, 169
of line segments, 160 order-k, 169, 188 power diagram, 169 pseudo code, 157 skeleton, 169 weighted, 169
VORONOIDIAGRAM, 157
weighted Voronoi diagram, 169 well-shaped triangle, 308 window, 219, 335
window system, 122 windowing query, 219, 335 work space, 284, 324
y-monotone polygon, 49 |
385 |
INDEX z-buffer algorithm, 259 zone
of hyperplane, 187 of line, 183, 269
Zone Theorem, 184, 187
386