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		<citationkey>FigueiredoCele:2015:DeCoSi</citationkey>
		<title>Detecção de colisão para simulação entre partículas representadas como superelipses</title>
		<format>On-line</format>
		<year>2015</year>
		<numberoffiles>1</numberoffiles>
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		<author>de Figueiredo, Alice Herrera,</author>
		<author>Celes, Waldemar,</author>
		<affiliation>Instituto Tecgraf/PUC-Rio</affiliation>
		<affiliation>Instituto Tecgraf/PUC-Rio</affiliation>
		<editor>Vieira, Thales Miranda de Almeida,</editor>
		<editor>Mello, Vinicius Moreira,</editor>
		<e-mailaddress>herrera@tecgraf.puc-rio.br</e-mailaddress>
		<conferencename>Conference on Graphics, Patterns and Images, 28 (SIBGRAPI)</conferencename>
		<conferencelocation>Salvador, BA, Brazil</conferencelocation>
		<date>26-29 Aug. 2015</date>
		<publisher>Sociedade Brasileira de Computação</publisher>
		<publisheraddress>Porto Alegre</publisheraddress>
		<booktitle>Proceedings</booktitle>
		<tertiarytype>Undergraduate Work</tertiarytype>
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		<keywords>superelipses, quadtree, simulação física.</keywords>
		<abstract>This work explores the use of superellipses for representing various geometrical shapes of grains. A methodology is proposed for collision detection based on quadtrees and interval arithmetic. We also propose a projection method for handling collisions using relaxation for simulating particles of different shapes.</abstract>
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