Visualization Symposium, IEEE Pacific (2011)

Hong Kong, China

Mar. 1, 2011 to Mar. 4, 2011

ISBN: 978-1-61284-935-5

pp: 67-74

ABSTRACT

We present a technique to visualize global uncertainty in stationary 3D vector fields by a topological approach. We start from an existing approach for 2D uncertain vector field topology and extend this into 3D space. For this a number of conceptional and technical challenges in performance and visual representation arise. In order to solve them, we develop an acceleration for finding sink and source distributions. Having these distributions we use overlaps of their corresponding volumes to find separating structures and saddles. As part of the approach, we introduce uncertain saddle and boundary switch connectors and provide algorithms to extract them. For the visual representation, we use multiple direct volume renderings. We test our method on a number of synthetic and real data sets.

INDEX TERMS

vectors, data visualisation, rendering (computer graphics), topology, real data sets, uncertain topology, global uncertainty, stationary 3D vector fields, topological approach, 2D uncertain vector field topology, performance representation, visual representation, sink and source distributions, separating structures, saddles, boundary switch connectors, multiple direct volume renderings, synthetic data set, Three dimensional displays, Connectors, Uncertainty, Data visualization, Switches, Visualization, Density functional theory, Topology-based Techniques, Uncertainty Visualization, Vector Field Data

CITATION

"Uncertain topology of 3D vector fields,"

*2011 IEEE Pacific Visualization Symposium (PacificVis)(PACIFICVIS)*, Hong Kong, 2011, pp. 67-74.

doi:10.1109/PACIFICVIS.2011.5742374