Title:	Interactive generative geometric modeling by geometric to declarative representation conversion
Authors:	Sellinger, Dennis Plemenos, Dimitri
Citation:	Journal of WSCG. 1997, vol. 5, no. 1-3, p. 504-513.
Issue Date:	1997
Publisher:	Václav Skala - UNION Agency
Document type:	článek article
URI:	http://wscg.zcu.cz/wscg1997/wscg97.htm http://hdl.handle.net/11025/15913
ISSN:	1213-6972 (print) 1213-6980 (CD-ROM) 1213-6964 (online)
Keywords:	počítačová grafika;geometrické modelování;generativní modelování;umělá inteligence;deklarativní modelování;znázornění konverze;vizuální programování
Keywords in different language:	computer graphics;geometric modelling;generative modeling;artificial intelligence;declarative modelling;representation conversion;visual programming
Abstract in different language:	Generative modeling environments typically use a semantic description of a scene, which can be processed by a generation system to produce one or more geometric instatnces. In order to support an interactive environment for generative geometric modeling it is necessary to be able to convert a geometric instance into a semantic description. This paper describes such a conversion system, as part of a project to integrate the MULTIFORMES declarative geometric modeling system with a traditional interactive modeler. The conversion algorithm attempts to reverse the hierarchical scene decomposition, used by MULTIFORMES, using a bottom-up process of sub-scene agglomeration. The algorithm has three steps; first, primitive sub-scenes are recognized and discretized, next, connected sub-scenes are agglomerated, and finally disconnected sub-scenes are associated to produce a single hierarchical representation of the scene. If knowledge about the logical organization of the scene exists, this knowledge can be applied to achieve a better semantic scene description. This knowledge may come either from a previous semantic description, its related geometric representation or directly from the designer.
Rights:	© Václav Skala - UNION Agency
Appears in Collections:	Volume 5, number 1-3 (1997)

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