Abstract: We describe a variant of a domain decomposition method proposed by Gleicher and Kass for intersecting and trimming parametric surfaces. Instead of using interval arithmetic to guide the decomposition, the variant described here uses affine arithmetic, a tool recently proposed for range analysis. Affine arithmetic is similar to standard interval arithmetic, but takes into account correlations between operands and sub-formulas, generally providing much tighter bounds for the computed quantities.... (Update)
.... 93 [2] as a tool for validated numerics [20] Since then, AA has been applied to the robust solution of several graphics problems [4,6,7,11,12], where it has successfully replaced interval arithmetic [16] In AA, a quantity x is represented as an affine form, x = x 0 x...
.... one of these tools, and its use in interval methods has resulted in faster algorithms for several problems in computer graphics [6, 5, 16, 15, 4]. A natural next step is to use affine arithmetic instead of interval arithmetic in the global processing algorithms we have...
L. H. de Figueiredo. Surface intersection using affine arithmetic. In Proceedings of Graphics Interface'96, pages 168-- 175, May 1996. http://citeseer.nj.nec.com/defigueiredo96surface.html More
@inproceedings{ defigueiredo96surface,
author = "Luiz Henrique {de Figueiredo}",
title = "Surface Intersection Using Affine Arithmetic",
booktitle = "Graphics Interface '96",
publisher = "Canadian Human-Computer Communications Society",
editor = "Wayne A. Davis and Richard Bartels",
pages = "168--175",
year = "1996",
url = "citeseer.nj.nec.com/defigueiredo96surface.html" }