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Particle Tracing in σ-Transformed Grids using Tetrahedral 6-Decomposition
(The Eurographics Association, 1998)
Particle tracing in curvilinear grids often employs decomposition of hexahedral cells into 5 tetrahedra. This method has shortcomings when applied to sigma-transformed grids, a grid type having strongly sheared cells, ...
Experiments on the Accuracy of Feature Extraction
(The Eurographics Association, 1998)
Feature extraction is an approach to visualization that ex- tracts important regions or objects of interest algorithmically from large data sets. In our feature extraction process, high-level attributes are cal- culated ...
Attribute-Based Feature Tracking
(Springer and The Eurographics Association, 1999)
Visualization of time-dependent data is an enormous task because of the vast amount of data involved. However, most of the time the scientist is mainly interested in the evolution of certain features. Therefore, it suffices ...
Geometric Methods for Vortex Extraction
(Springer and The Eurographics Association, 1999)
This paper presents two vortex detection methods which are based on the geometric properties of streamlines. Unlike traditional vortex detection methods, which are based on point-samples of physical quantities, one of our ...