Astrophysics Visualization

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G. M. Machado, F. Sadlo, T. Müller, T. Ertl:

Escape Maps

IEEE Transactions on Visualization and Computer Graphics, vol. 20, no. 12, pp. 2604–2613, 2014.

Abstract

We present a technique to visualize the streamline-based mapping between the boundary of a simply-connected subregion of arbitrary 3D vector fields. While the streamlines are seeded on one part of the boundary, the remaining part serves as escape border. Hence, the seeding part of the boundary represents a map of streamline behavior, indicating if streamlines reach the escape border or not. Since the resulting maps typically exhibit a very fine and complex structure and are thus not amenable to direct sampling, our approach instead aims at topologically consistent extraction of their boundary. We show that isocline surfaces of the projected vector field provide a robust basis for stream-surface-based extraction of these boundaries. The utility of our technique is demonstrated in the context of transport processes using vector field data from different domains.

Available Files

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Publications

2020
Reviewed Journal Papers
A. Sagristà, S. Jordan, F. Sadlo:
Visual Analysis of the Finite-Time Lyapunov Exponent
Computer Graphics Forum, vol. 39, no. 3, pp. 331–342, 2020.
Available files: [BibTeX] [DOI] [PDF] [Video] [Details]

2019
Reviewed Journal Papers
A. Sagristà, S. Jordan, T. Müller, F. Sadlo:
Gaia Sky: Navigating the Gaia Catalog
IEEE Transactions on Visualization and Computer Graphics, vol. 25, no. 1, pp. 1070–1079, 2019.
Available files: [BibTeX] [DOI] [PDF] [Highres PDF] [Video] [Details]

2017
Reviewed Journal Papers
A. Sagristà, S. Jordan, A. Just, F. Dias, L. G. Nonato, F. Sadlo:
Topological Analysis of Inertial Dynamics
IEEE Transactions on Visualization and Computer Graphics, vol. 23, no. 1, pp. 950–959, 2017.
Available files: [BibTeX] [DOI] [PDF] [Highres PDF] [Technical Addendum] [Video] [Details]

Reviewed Conference Papers
R. Peikert, G. M. Machado, F. Sadlo:
Topological Extraction of Escape Maps in Divergence-Free Vector Fields
In Topological Methods in Data Analysis and Visualization IV, Springer International Publishing, pp. 171–186, 2017.
Available files: [BibTeX] [DOI] [Details]

2016
Reviewed Journal Papers
A. Brown, .. ..., A. Sagristà, .. ..., :
Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
Astronomy & Astrophysics, 2016.
Available files: [BibTeX] [DOI]

T. Prusti, .. ..., A. Sagristà, .. ..., :
The Gaia mission
Astronomy & Astrophysics, 2016.
Available files: [BibTeX] [DOI]

2015
Reviewed Journal Papers
A. Manrique, E. Salvador-Solé, E. Juan, E. Hatziminaoglou, J. M. Rozas, A. Sagristà, K. Casteels, G. Bruzual, G. Magris:
Leaving the Dark Ages with AMIGA
The Astrophysical Journal Supplement Series, vol. 216, no. 1, pp. 13, 2015.
Available files: [BibTeX] [DOI] [Details]

2014
Reviewed Journal Papers
G. M. Machado, F. Sadlo, T. Müller, T. Ertl:
Escape Maps
IEEE Transactions on Visualization and Computer Graphics, vol. 20, no. 12, pp. 2604–2613, 2014.
Available files: [BibTeX] [DOI] [PDF] [Highres PDF] [Details]

2013
Reviewed Journal Papers
M. Ament, F. Sadlo, D. Weiskopf:
Ambient Volume Scattering
IEEE Transactions on Visualization and Computer Graphics, vol. 19, no. 12, pp. 2936–2945, 2013.
Available files: [BibTeX] [DOI] [PDF] [Details]

Reviewed Conference Papers
G. M. Machado, F. Sadlo, T. Ertl:
Local Extraction of Bifurcation Lines
In Proceedings of International Workshop on Vision, Modeling and Visualization (VMV), pp. 17–24, 2013.
Available files: [BibTeX] [DOI] [PDF] [Details]

2012
Reviewed Conference Papers
G. M. Machado, F. Sadlo, T. Müller, D. Müller, T. Ertl:
Visualizing Solar Dynamics Data
In Proceedings of International Workshop on Vision, Modeling and Visualization (VMV), pp. 95–102, 2012.
Available files: [BibTeX] [DOI] [PDF] [Technical Addendum] [Video] [Details]