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		<citationkey>CarneiroGattLevyRuss:1997:MoInIn</citationkey>
		<title>Interact: um modelo de interação para interfaces 2D por manipulação direta</title>
		<year>1997</year>
		<numberoffiles>1</numberoffiles>
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		<author>Carneiro, Marcelo Medeiros,</author>
		<author>Gattass, Marcelo,</author>
		<author>Levy, Carlos Henrique,</author>
		<author>Russo, Enio Emanuel Ramos,</author>
		<editor>Figueiredo, Luiz Henrique de,</editor>
		<editor>Netto, Marcio Lobo,</editor>
		<conferencename>Brazilian Symposium on Computer Graphics and Image Processing, 10 (SIBGRAPI)</conferencename>
		<conferencelocation>Campos de Jordão, SP, Brazil</conferencelocation>
		<date>Oct. 1997</date>
		<publisher>Sociedade Brasileira de Computação</publisher>
		<publisheraddress>Porto Alegre</publisheraddress>
		<booktitle>Proceedings</booktitle>
		<organization>SBC - Sociedade Brasileira de Computação; USP - Universidade de São Paulo</organization>
		<transferableflag>1</transferableflag>
		<keywords>computer graphics, user interface, interaction tasks, direct manipulation.</keywords>
		<abstract>We discuss interaction techniques in systems based on direct manipulation of the objects in the canvases and proposes a model to manager such interactions. This model reduces the programming effort by providing an appropriate abstraction of the interaction tasks. A class library that implements these abstractions is also presented. Two application programs developed with this class library allow us to draw some conclusions.</abstract>
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		<notes>The conference was held in Campos de Jordão, SP, Brazil, from October 13 to 16.</notes>
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