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		<identifier>8JMKD3MGPAW/3S3J5P6</identifier>
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		<lastupdate>2018:10.18.16.03.04 sid.inpe.br/banon/2001/03.30.15.38 herrera@tecgraf.puc-rio.br</lastupdate>
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		<citationkey>FigueiredoCele:2018:DiFiGe</citationkey>
		<title>Directionality fields in the generation and evaluation of quadrilateral meshes</title>
		<format>On-line</format>
		<year>2018</year>
		<date>Oct. 29 - Nov. 1, 2018</date>
		<numberoffiles>1</numberoffiles>
		<size>4966 KiB</size>
		<author>de Figueiredo, Alice Herrera,</author>
		<author>Celes, Waldemar,</author>
		<affiliation>Tecgraf/PUC-Rio</affiliation>
		<affiliation>PUC-Rio</affiliation>
		<editor>Ross, Arun,</editor>
		<editor>Gastal, Eduardo S. L.,</editor>
		<editor>Jorge, Joaquim A.,</editor>
		<editor>Queiroz, Ricardo L. de,</editor>
		<editor>Minetto, Rodrigo,</editor>
		<editor>Sarkar, Sudeep,</editor>
		<editor>Papa, João Paulo,</editor>
		<editor>Oliveira, Manuel M.,</editor>
		<editor>Arbeláez, Pablo,</editor>
		<editor>Mery, Domingo,</editor>
		<editor>Oliveira, Maria Cristina Ferreira de,</editor>
		<editor>Spina, Thiago Vallin,</editor>
		<editor>Mendes, Caroline Mazetto,</editor>
		<editor>Costa, Henrique Sérgio Gutierrez,</editor>
		<editor>Mejail, Marta Estela,</editor>
		<editor>Geus, Klaus de,</editor>
		<editor>Scheer, Sergio,</editor>
		<e-mailaddress>herrera@tecgraf.puc-rio.br</e-mailaddress>
		<conferencename>Conference on Graphics, Patterns and Images, 31 (SIBGRAPI)</conferencename>
		<conferencelocation>Foz do Iguaçu, PR, Brazil</conferencelocation>
		<booktitle>Proceedings</booktitle>
		<publisher>Sociedade Brasileira de Computação</publisher>
		<publisheraddress>Porto Alegre</publisheraddress>
		<documentstage>not transferred</documentstage>
		<transferableflag>1</transferableflag>
		<tertiarytype>Master's or Doctoral Work</tertiarytype>
		<keywords>domain partitioning, mesh, quadrilateral.</keywords>
		<abstract>One of the main challenges in quadrilateral mesh generation is to ensure the alignment of the elements with respect to domain constraints. Unaligned meshes yield numerical problems in simulations that use these meshes as a domain discretization. There is no alignment metric for evaluating the quality of quadrilateral meshes. A directionality field represents the diffusion of the constraints orientation to the interior of the domain. Kowalski et al. use a directionality field for domain partitioning into quadrilateral regions. In this work, we reproduce their partitioning method and adapt it to reduce the final number of partitions. We also propose a new metric to evaluate the quality of a quadrilateral mesh with respect to the alignment with domain constraints.</abstract>
		<language>en</language>
		<targetfile>alice_herrera_paper_final.pdf</targetfile>
		<usergroup>herrera@tecgraf.puc-rio.br</usergroup>
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