RADIAL EDGE SPLATTING FOR VISUALIZING DYNAMIC DIRECTED GRAPHS

Michael Burch, Fabian Beck, Daniel Weiskopf

2012

Abstract

We describe and discuss a novel radial version of a scalable dynamic graph visualization. The radial layout encodes dynamic directed graphs on narrow rings of a circle. The temporal evolution of the graph is mapped to rings that grow outward from the center of the circle. Graph vertices are placed equidistantly at the borderlines of each ring. Graph edges are displayed as curved lines starting from a source on the inner borderline of the ring and pointing to a target on the outer borderline. To better perceive link directions and structures of large datasets, visual clutter is reduced by exploiting an edge splatting approach that generates density fields of the displayed edges. The radial layout emphasizes newer graphs, displayed in the larger, outer parts of the circle. As a benefit, edge lengths are reduced in comparison to the non-radial visualization. Moreover, the radial layout guarantees the symmetry of the visualization under shifting of vertices. We illustrate the usefulness of the diagrams by applying them to call graph data of the open source software project Cobertura.

Paper Citation

in Harvard Style

Burch M., Beck F. and Weiskopf D. (2012). RADIAL EDGE SPLATTING FOR VISUALIZING DYNAMIC DIRECTED GRAPHS . In Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications - Volume 1: IVAPP, (VISIGRAPP 2012) ISBN 978-989-8565-02-0, pages 603-612. DOI: 10.5220/0003828506030612

in Bibtex Style

@conference{ivapp12,
author={Michael Burch and Fabian Beck and Daniel Weiskopf},
title={RADIAL EDGE SPLATTING FOR VISUALIZING DYNAMIC DIRECTED GRAPHS},
booktitle={Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications - Volume 1: IVAPP, (VISIGRAPP 2012)},
year={2012},
pages={603-612},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003828506030612},
isbn={978-989-8565-02-0},
}

in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications - Volume 1: IVAPP, (VISIGRAPP 2012)
TI - RADIAL EDGE SPLATTING FOR VISUALIZING DYNAMIC DIRECTED GRAPHS
SN - 978-989-8565-02-0
AU - Burch M.
AU - Beck F.
AU - Weiskopf D.
PY - 2012
SP - 603
EP - 612
DO - 10.5220/0003828506030612