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TitleExtraction of Crack-free Isosurfaces from Adaptive Mesh Refinement Data (In Proceedings)
inData Visualization 2001 (Proceedings of the Joint EUROGRAPHICS and IEEE TCVG Symposium on Visualization VisSym '01)
Author(s) Gunther H. Weber, Oliver Kreylos, Terry J. Ligocki, John M. Shalf, Hans Hagen, Bernd Hamann, Ken Joy
Editor(s) David S. Ebert, Jean M. Favre, Ronald Peikert
Year May 2001
LocationAscona, Switzerland
DateMay 28--31, 2001
PublisherSpringer Verlag
AddressWien, Austria
OrganizationEUROGRAPHICS, IEEE
Pages25--34, 335
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Abstract Adaptive mesh refinement (AMR) is a numerical simulation technique used in computational fluid dynamics (CFD). It permits the efficient simulation of phenomena characterized by substantially varying scales in complexity of local behavior of certain variables. By using a set of nested grids at different resolutions, AMR combines the simplicity of structured rectilinear grids with the possibility to adapt to local changes in complexity and spatial resolution. Hierarchical representations of scientific data pose challenges when isosurfaces are extracted. Cracks can arise at the boundaries between regions represented at different resolutions. We present a method for the extraction of isosurfaces from AMR data that avoids cracks at the boundaries between levels of different resolution.