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Computing Delaunay Triangulation with Imprecise . . .

By A. A. Khanban and A. Edalat


The key step in the construction of the Delaunay triangulation of a finite set of planar points is to establish correctly whether a given point of this set is inside oroutside the circle determined by any other three points. We address the problem of formulating the in-circle testwhen the coordinates of the planar points are given only up to a given precision, which is usually the case in practice. By modelling imprecise points as rectangles, and using the idea of partial disc, we construct a reliablein-circle test that provides the best possible Delaunay triangulation with the imprecise input data given by rectangles

Topics: robust algorithm, Delaunay triangulation, imprecise data, in-circle test, partial disc
Year: 2003
OAI identifier: oai:CiteSeerX.psu:
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