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Computer Graphics International 2004 (CGI'04)   pp. 86-92
Computing Polygonal Surfaces from Unions of Balls
Roger Tam, University of British Columbia
Wolfgang Heidrich, University of British Columbia

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DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/CGI.2004.1309196
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Abstract
We present a new algorithm for computing a polygonal surface from a union of balls. The method computes and connects the singular points of a given union of balls in an efficient manner to approximate the boundary. The algorithm uses the dual shape of the balls to give the resulting surface the correct topology. Our method is simple and demonstrated to be robust.
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Citation:  Roger Tam, Wolfgang Heidrich, "Computing Polygonal Surfaces from Unions of Balls," cgi, pp. 86-92,  Computer Graphics International 2004 (CGI'04),  2004