Title: A hierarchical splitting scheme to reveal insight into highly self-occluded integral surfaces
Authors: Brambilla, Andrea
Viola, Ivan
Hauser, Helwig
Citation: Journal of WSCG. 2012, vol. 20, no. 1, p. 57-64.
Issue Date: 2012
Publisher: Václav Skala - UNION Agency
Document type: článek
URI: http://wscg.zcu.cz/WSCG2012/!_2012-Journal-Full-1.pdf
ISSN: 1213-6972 (hardcopy)
1213–6980 (CD-ROM)
1213–6964 (on-line)
Keywords: vizualizace toku;ilustrativní vizualizace;řízení okluze
Keywords in different language: flow visualization;illustrative visualization;occlusion management
Abstract: In flow visualization, integral surfaces are of particular interest for their ability to describe trajectories of massless particles. In areas of swirling motion, integral surfaces can become very complex and difficult to understand. Taking inspiration from traditional illustration techniques, such as cut-aways and exploded views, we propose a surface analysis tool based on surface splitting and focus+context visualization. Our surface splitting scheme is hierarchical and at every level of the hierarchy the best cut is chosen according to a surface complexity metric. In order to make the interpretation of the resulting pieces straightforward, cuts are always made along isocurves of specific flow attributes. Moreover, a degree of interest can be specified, so that the splitting procedure attempts to unveil the occluded interesting areas. Through practical examples, we show that our approach is able to overcome the lack of understanding originating from structural occlusion.
Rights: © Václav Skala - UNION Agency
Appears in Collections:Number 1 (2012)

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Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/1059

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