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» VC-Dimension of Visibility on Terrains
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COMPGEOM
2009
ACM
13 years 9 months ago
Visibility maps of realistic terrains have linear smoothed complexity
We study the complexity of the visibility map of terrains whose triangles are fat, not too steep and have roughly the same size. It is known that the complexity of the visibility ...
Mark de Berg, Herman J. Haverkort, Constantinos P....
ALENEX
2004
107views Algorithms» more  ALENEX 2004»
13 years 6 months ago
Approximating the Visible Region of a Point on a Terrain
Given a terrain T and a point p on or above it, we wish to compute the region Rp that is visible from p. We present a generic radar-like algorithm for computing an approximation o...
Boaz Ben-Moshe, Paz Carmi, Matthew J. Katz
SODA
1990
ACM
82views Algorithms» more  SODA 1990»
13 years 5 months ago
Visibility with a Moving Point of View
We investigate 3-d visibility problems in which the viewing position moves along a straight flightpath. Specifically we focus on two problems: determining the points along the fli...
Marshall W. Bern, David P. Dobkin, David Eppstein,...
GIS
2009
ACM
13 years 11 months ago
Improved visibility computation on massive grid terrains
Jeremy Fishman, Herman J. Haverkort, Laura Toma
ALENEX
2007
98views Algorithms» more  ALENEX 2007»
13 years 6 months ago
Computing Visibility on Terrains in External Memory
Herman J. Haverkort, Laura Toma, Yi Zhuang