Title
Extracting Separation Surfaces of Path Line Oriented Topology in Periodic 2D Time-Dependent Vector Fields.
Abstract
This paper presents an approach to extracting the separation surfaces from periodic 2D time-dependent vector fields based on a recently introduced path line oriented topology. This topology is based on critical path lines which repeat the same spatial cycle per time period. Around those path lines there are areas of similar asymptotic flow behavior (basins) which are captured by a 2D Poincare map as a discrete dynamical system. Due to pseudo discontinuities in this map and the discrete integration scheme, separatrices between the basins can't be obtained as integral curves. Instead we choose a point-wise approach to segment the Poincare map and apply image analysis algorithms to extract the 2D separation curves. Starting from those curves we integrate separation surfaces which partition the periodic 2D time-dependent vector field into areas of similar path line behavior. We apply our approach to a number of data sets to demonstrate its utility.
Year
Venue
Keywords
2007
Journal of WSCG
Flow Visualization,Time-dependent vector fields,Topological methods
Field
DocType
Volume
Topology,Data set,Poincaré map,Classification of discontinuities,Vector field,Computer science,Flow (psychology),Critical path method,Partition (number theory),Periodic graph (geometry)
Journal
15
Issue
ISSN
Citations 
1-3
1213-6972
0
PageRank 
References 
Authors
0.34
16
6
Name
Order
Citations
PageRank
Kuangyu Shi1368.12
Holger Theisel2147999.18
Tino Weinkauf363437.83
Helwig Hauser42757155.37
Hans-Christian Hege51319102.92
Hans-Peter Seidel612532801.49