Reference TypeConference Proceedings
Citation KeyAraujoJorg:2005:CaInIn
Author1 Araujo, Bruno Rodrigues de
2 Jorge, Joaquim Armando Pires
Affiliation1 Department of Information Systems and Computer Engineering
2 INESC-ID/IST/Technical University of Lisbon
3 R. Alves Redol, 1000-29 Lisbon, PORTUGAL
TitleA calligraphic interface for interactive free-form modeling with large datasets
Conference NameBrazilian Symposium on Computer Graphics and Image Processing, 18 (SIBGRAPI)
EditorRodrigues, Maria Andréia Formico
Frery, Alejandro César
Book TitleProceedings
Date9-12 Oct. 2005
Publisher CityLos Alamitos
PublisherIEEE Computer Society
Conference LocationNatal
Keywordssketch based interface, 3D modelling, implicit surfaces, polygonization.
AbstractWe present a sketching interface for modeling shapes defined by large sets of points. Our system supports powerful modeling operations that are applied directly to the points defining the surface. These operations are based on sketch input to allow directly creating objects using simple strokes. Objects may be edited by either by boundary oversketching, or by cutting, relief drawing on surfaces, merging and cloning. By combining these operations we can create complex shapes, including objects with sharp features. Our work uses the Multi-level Partition of Unity Implicits (MPU) technique to convert point clouds into implicit surfaces. Furthermore, we have devised a fast adaptive incremental polygonization algorithm which takes advantage of the MPU structure. This makes local re-polygonization possible and allows real-time modifications to large point sets since it avoids re-calculating the whole polygonal representation from scratch after each modification.
Tertiary TypeFull Paper
Size862 KiB
Number of Files1
Target Filearaujo_freeformsketch_v3.pdf
Last Update2005: administrator
Metadata Last Update2020: administrator {D 2005}
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History2005-07-17 03:19:52 :: brar -> banon ::
2005-07-18 14:22:56 :: banon -> brar ::
2008-07-17 14:11:00 :: brar -> banon ::
2008-08-26 15:17:02 :: banon -> administrator ::
2009-08-13 20:37:51 :: administrator -> banon ::
2010-08-28 20:01:18 :: banon -> administrator ::
2020-02-19 03:19:15 :: administrator -> :: 2005
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Access Date2020, Nov. 28