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On Moving Least Squares Based Flow Visualization Obermaier, Harald Hering-Bertram, Martin Kuhnert, Jörg Hagen, Hans Moving Least Squares Approximation Flow Scientific Visualization Modern simulation and measurement methods tend to produce meshfree data sets if modeling of processes or objects with free surfaces or boundaries is desired. In Computational Fluid Dynamics (CFD), such data sets are described by particle-based vector fields. This paper presents a summary of a selection of methods for the extraction of geometric features of such point-based vector fields while pointing out its challenges, limitations, and applications. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Harald Obermaier and Martin Hering-Bertram and Jörg Kuhnert and Hans Hagen 2011 Is Part Of OASIcs, Volume 19, Visualization of Large and Unstructured Data Sets - Applications in Geospatial Planning, Modeling and Engineering (IRTG 1131 Workshop) (2011) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/OASIcs.VLUDS.2010.55 urn:nbn:de:0030-drops-30979 https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.VLUDS.2010.55 eng https://creativecommons.org/licenses/by-nc-nd/3.0/legalcode