Datensatz

Zusammenfassung

Topological simplification techniques and topology preserving
compression approaches for 2D vector fields have
been developed quite independently of each other. In this
paper we propose a combination of both approaches: a vector
field should be compressed in such a way that its important
topological features (both critical points and separatrices)
are preserved while its unimportant features are allowed
to collapse and disappear. To do so, a number of new
solutions and modifications of pre-existing algorithms are
presented. We apply the approach to a flow data set which,
is both large and topologically complex, and achieve significant
compression ratios there.