Název:	Glyphs for space-time Jacobians of time-dependent vector fields
Autoři:	Gerrits, Tim Rössl, Christian Theisel, Holger
Citace zdrojového dokumentu:	Journal of WSCG. 2017, vol. 25, no. 1, p. 31-38.
Datum vydání:	2017
Nakladatel:	Václav Skala - UNION Agency
Typ dokumentu:	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)
Klíčová slova:	tenzorový glyf;design glyfu;vizualizace toku
Klíčová slova v dalším jazyce:	tensor glyphs;glyph design;flow visualization
Abstrakt v dalším jazyce:	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.
Práva:	© Václav Skala - UNION Agency
Vyskytuje se v kolekcích:	Volume 25, Number 1 (2017)

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