Results 11 to 20 of about 5,737 (222)

Minkowski Sums of Monotone and General Simple Polygons [PDF]

open access: bronzeDiscrete & Computational Geometry, 2005
Let P be a simple polygon with m edges, which is the disjoint union of k simple polygons, all monotone in a common direction u, and let Q be another simple polygon with n edges, which is the disjoint union of l simple polygons, all monotone in a common direction v. We show that the combinatorial complexity of the Minkowski sum P ź Q is O(klmnź(min{m,n})
Eduard Oks, Micha Sharir
openalex   +3 more sources

PSEUDO-TRIANGULATION OF MONOTONE POLYGON USING SWEEP LINE ALGORITHM

open access: hybridKhulna University Studies, 2022
In the field of computational geometry, pseudo-triangulation of a polygon is an interesting topic. Breaking a polygon into pseudo-triangles reduces the calculation cost and increases computational power. The sweep line algorithm also known as the plane sweep algorithm uses an imaginary line or a plain surface on the Euclidean plain to perform various ...
S.M. Azoad Ahnaf   +2 more
openalex   +3 more sources

Lion and Man with Visibility in Monotone Polygons [PDF]

open access: closedThe International Journal of Robotics Research, 2013
In the original version of the lion and man game, a lion tries to capture a man who is trying to escape in a circular arena. The players have equal speeds. They can observe each other at all times. We study a new variant of the game in which the lion has only line-of-sight visibility.
Narges Noori, Volkan Isler
openalex   +2 more sources

Line-of-Sight Pursuit in Monotone and Scallop Polygons [PDF]

open access: closedInternational Journal of Computational Geometry & Applications, 2019
We study a turn-based game in a simply connected polygonal environment [Formula: see text] between a pursuer [Formula: see text] and an adversarial evader [Formula: see text]. Both players can move in a straight line to any point within unit distance during their turn.
Lindsay Berry   +6 more
openalex   +3 more sources

Witness Set in Monotone Polygons: Exact and Approximate [PDF]

open access: green
40 pages, 24 ...
Udvas Das   +4 more
openalex   +3 more sources

The Complexity of Guarding Monotone Polygons

open access: green, 2012
A polygon P is x-monotone if any line orthogonal to the x-axis has a simply connected intersection with P. A set G of points inside P or on the boundary of P is said to guard the polygon if every point inside P or on the boundary of P is seen by a point in G. An interior guard can lie anywhere inside or on the boundary of the polygon. Using a reduction
Erik Krohn, Bengt J. Nilsson
openalex   +3 more sources

Approximating monotone polygonal curves using the uniform metric [PDF]

open access: goldProceedings of the twelfth annual symposium on Computational geometry - SCG '96, 1996
Kasturi Varadarajan
openalex   +2 more sources

Lower Bound for Sculpture Garden Problem: Localization of IoT Devices

open access: yesApplied Sciences, 2023
The purpose of the current study is to investigate a special case of art gallery problem, namely a sculpture garden problem. In this problem, for a given polygon P, the ultimate goal is to place the minimum number of guards (landmarks) to define the ...
Marzieh Eskandari   +2 more
doaj   +1 more source

Q-Curve and Area Rules for Choosing Heuristic Parameter in Tikhonov Regularization

open access: yesMathematics, 2020
We consider choice of the regularization parameter in Tikhonov method if the noise level of the data is unknown. One of the best rules for the heuristic parameter choice is the quasi-optimality criterion where the parameter is chosen as the global ...
Toomas Raus, Uno Hämarik
doaj   +1 more source

Morphing Planar Graph Drawings Optimally [PDF]

open access: yes, 2014
We provide an algorithm for computing a planar morph between any two planar straight-line drawings of any $n$-vertex plane graph in $O(n)$ morphing steps, thus improving upon the previously best known $O(n^2)$ upper bound.
C. Erten   +10 more
core   +1 more source

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