Sciweavers

CCCG
1997
14 years 10 months ago
On the number of internal and external visibility edges of polygons
In this paper we prove that for any simple polygon P with n vertices, the sum of the number of strictly internal edges and the number of strictly external visibility edges of P is...
Jorge Urrutia
CCCG
1997
14 years 10 months ago
On folding rulers in regular polygons
Naixun Pei, Sue Whitesides
CCCG
1997
14 years 10 months ago
Label placement by maximum independent set in rectangles
Motivated by the problem of labeling maps, we investigate the problem of computing a large non-intersecting subset in a set of n rectangles in the plane. Our results are as follow...
Pankaj K. Agarwal, Marc J. van Kreveld, Subhash Su...
CCCG
1998
14 years 10 months ago
A modified longest side bisection triangulation
Fast and efficient exploration of large terrains in a virtual reality manner requires different levels of detail to speedup processing of terrain parts in background. Thus, the tr...
Christoph Stamm, Stephan Eidenbenz, Renato Pajarol...
CCCG
1998
14 years 10 months ago
Proximity drawings of binary trees in polynomial area
In this paper, we study weak {proximity drawings. All known algorithms that compute (weak) proximity drawings produce representations whose area increases exponentiallywith the nu...
Paolo Penna, Paola Vocca
CCCG
1998
14 years 10 months ago
On point covers of c-oriented polygons
Let S be any family of n c-oriented polygons of the two-dimensional Euclidean plane E2 , i.e., bounded intersection of halfplanes whose normal directions of edges belong to a
Frank Nielsen
CCCG
1998
14 years 10 months ago
Quantile approximation for robust statistical estimation
Given a set P of n points in Rd, a fundamental problem in computational geometry is concerned with finding the smallest shape of some type that encloses all the points of P. Well-...
David M. Mount, Nathan S. Netanyahu, Christine D. ...
CCCG
1998
14 years 10 months ago
On measuring areas of polygons
Jurek Czyzowicz, F. Contreras-Alcalá, Jorge...
CCCG
1998
14 years 10 months ago
Illuminating triangles and quadrilaterals with vertex floodlights
We show that three /6 vertex floodlights suffice to illuminate any triangle, and we prove that any quadrilateral can be illuminated by three /4 vertex floodlights.
Felipe Contreras, Jurek Czyzowicz, Nicolas Fraiji,...
CCCG
1998
14 years 10 months ago
Finding specified sections of arrangements: 2d results
Prosenjit Bose, Ferran Hurtado, Henk Meijer, Sunee...