Title:	Glyphs for space-time Jacobians of time-dependent vector fields
Authors:	Gerrits, Tim Rössl, Christian Theisel, Holger
Citation:	Journal of WSCG. 2017, vol. 25, no. 1, p. 31-38.
Issue Date:	2017
Publisher:	Václav Skala - UNION Agency
Document type:	článek article
URI:	wscg.zcu.cz/WSCG2017/!_2017_Journal_WSCG-No-1.pdf http://hdl.handle.net/11025/26278
ISSN:	1213-6972 (print) 1213-6980 (CD-ROM) 1213-6964 (on-line)
Keywords:	tenzorový glyf;design glyfu;vizualizace toku
Keywords in different language:	tensor glyphs;glyph design;flow visualization
Abstract in different language:	Glyphs have proven to be a powerful visualization technique for general tensor fields modeling physical phenomena such as diffusion or the derivative of flow fields. Most glyph constructions, however, do not provide a way of considering the temporal derivative, which is generally nonzero in non-stationary vector fields. This derivative offers a deeper understanding of features in time-dependent vector fields. We introduce an extension to 2D and 3D tensor glyph design that additionally encodes the temporal information of velocities, and thus makes it possible to represent time-dependent Jacobians. At the same time, a certain set of requirements for general tensor glyphs is fulfilled, such that the new method provides a visualization of the steadiness or unsteadiness of a vector field at a given instance of time.
Rights:	© Václav Skala - UNION Agency
Appears in Collections:	Volume 25, Number 1 (2017)

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.