Computational Geometry: Algorithms and ApplicationsSpringer Science & Business Media, 17.04.2013 - 367 Seiten Computational geometry emerged from the field of algorithms design and anal ysis in the late 1970s. It has grown into a recognized discipline with its own journals, conferences, and a large community of active researchers. The suc cess of the field as a research discipline can on the one hand be explained from the beauty of the problems studied and the solutions obtained, and, on the other hand, by the many application domains-computer graphics, geographic in formation systems (GIS), robotics, and others-in which geometric algorithms playafundamental role. For many geometric problems the early algorithmic solutions were either slow or difficult to understand and implement. In recent years a number of new algorithmic techniques have been developed that improved and simplified many of the previous approaches. In this textbook we have tried to make these modem algorithmic solutions accessible to a large audience. The book has been written as a textbook for a course in computational geometry, but it can also be used for self-study. |
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Seite 8
... coordinate of the points to define the order , we use the lexicographic order . This means that we first sort by x - coordinate , and if points have the same x - coordinate we sort them by y - coordinate . Another special case we have ...
... coordinate of the points to define the order , we use the lexicographic order . This means that we first sort by x - coordinate , and if points have the same x - coordinate we sort them by y - coordinate . Another special case we have ...
Seite 24
... y - coordinate , then the one with smaller x - coordinate will be returned . In other words , event points on the same horizontal line are treated from left to right . This implies that we should consider the left endpoint of a ...
... y - coordinate , then the one with smaller x - coordinate will be returned . In other words , event points on the same horizontal line are treated from left to right . This implies that we should consider the left endpoint of a ...
Seite 27
... y - coordinate , and that when two events have the same y - coordinate the one with smaller x - coordinate is given higher priority . We shall prove the lemma by induction on the priority of the event points . Let p be an intersection ...
... y - coordinate , and that when two events have the same y - coordinate the one with smaller x - coordinate is given higher priority . We shall prove the lemma by induction on the priority of the event points . Let p be an intersection ...
Seite 50
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Inhalt
5 | |
17 | |
30 | |
5 | 40 |
4 | 57 |
2 | 66 |
Orthogonal Range Searching | 80 |
4 | 109 |
5 | 178 |
3 | 191 |
9 | 200 |
7 | 207 |
Convex Hulls | 236 |
Binary Space Partitions | 251 |
Robot Motion Planning | 267 |
2 A Point Robot | 270 |
8 | 117 |
3 | 129 |
6 | 144 |
3 | 154 |
4 | 162 |
2 | 169 |
Quadtrees | 291 |
Visibility Graphs | 307 |
Simplex Range Searching | 319 |
64 | 341 |
Index | 359 |
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Häufige Begriffe und Wortgruppen
2-dimensional associated structure beach line bound boundary BSP tree canonical subsets Chapter compute configuration space construct contains convex hull convex polygon corresponding data structure defined Delaunay triangulation denote disc doubly-connected edge list dual endpoint face facets Figure free space geometric half-edge half-plane Hence input inside interior intersection point interval tree kd-tree leaf Lemma lies line segments linear program mesh Minkowski sum motion planning number of edges number of reported O(n² O(nlogn objects obstacles P₁ partition tree pixel planar point location point q point stored pointers problem Proof prove Pstart quadtree query algorithm query point query range range queries range searching range tree recursive region robot search path search structure Section segment tree set of points shortest path simple polygon square subdivision subtree sweep line Theorem total number trapezoidal map triangles vertex vertical line visibility graph Vor(P Voronoi diagram xmid y-coordinate