COMPGEOM
13 years 9 months ago
1994 ACM 
We consider the problem of a robot which has to find a target in an unknown simple polygon, based only on what it has seen so far. A street is a polygon for which the two boundary...
COMPGEOM
13 years 9 months ago
1994 ACM 
We give simple randomized incremental algorithms for computing the k-level in an arrangement of n lines in the plane or in an arrangement of n planes in R3. The expected running ti...
COMPGEOM
13 years 9 months ago
1994 ACM 
An interactive visualization of weighted three-dimensional -hulls is presented for static and dynamic spheres. The -hull is analytically computed and represented by a triangulated...
COMPGEOM
13 years 9 months ago
1994 ACM 
Let F be a collection of n d-variate, possibly partially defined, functions, all algebraic of some constant maximum degree. We present a randomized algorithm that computes the vert...
COMPGEOM
13 years 8 months ago
1994 ACM
We devise techniques to manipulate a collection of loosely interpenetrating spheres in threedimensional space. Our study is motivated by the representation and manipulation of mol...
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Discrete Geometry