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Summary: Grid-Independent Detection of Closed Stream Lines in 2D Vector Fields
Holger Theisel1
Tino Weinkauf2
Hans-Christian Hege2
Hans-Peter Seidel1
1
MPI Informatik, Saarbr¨ucken, Germany {theisel,hpseidel}@mpi-sb.mpg.de
2
Zuse Institute Berlin (ZIB), Germany {weinkauf,hege}@zib.de
Abstract
We present a new approach to detecting isolated
closed stream lines in 2D vector fields. This ap-
proach is based on the idea of transforming the
2D vector field into an appropriate 3D vector field
such that detecting closed stream lines in 2D is
equivalent to intersecting certain stream surfaces in
3D. Contrary to pre-existing methods, our approach
does not rely on any underlying grid structure of the
vector field. We demonstrate the applicability and
stability by applying it to a test data set.
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