Titlebook: Hierarchical and Geometrical Methods in Scientific Visualization; Gerald Farin,Bernd Hamann,Hans Hagen Conference proceedings 2003 Springe

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Data Structures for Multiresolution Representation of Unstructured Meshes,tation of the data. Not only must we represent the data elements themselves, but we must also represent the connectivity or topological relationships between the data. We present three data structures for unstructured meshes that are designed to fully represent the topological connectivity in the me

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Scaling the Topology of Symmetric, Second-Order Planar Tensor Fields,, second-order, planar tensor fields. Yet, for tensor fields with complicated structure typically encountered in turbulent flows, topology-based techniques lead to cluttered pictures that confuse the interpretation and are of little help for analysts. In this paper, we present a hierarchical method

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Simplification of Nonconvex Tetrahedral Meshes,ding simplification of convex meshes. In particular, edge collapses in nonconvex meshes may cause intersections of cells that are hard to detect, and therefore hard to avoid. More precisely spoken, the problem is quadratic in the number of cells..However, we show how to reduce the complexity of this

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Virtual-Reality Based Interactive Exploration of Multiresolution Data,m aids a scientist in understanding a data set by interactively placing and manipulating visualization primitives, e. g., isosurfaces or streamlines, and thereby finding features in the data and understanding its overall structure..We discuss how the requirement of interactivity influences the archi

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Mesh Fairing Based on Harmonic Mean Curvature Surfaces,ric modeling literature for fairing purposes up to now. We show that this surface class is a very interesting alternative to minimal energy surfaces (MESs), which are up to now most frequently used to create high quality surfaces for .. boundary constraints, as long as no isolated vertices have to b

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Shape Feature Extraction, alternative to describing an object, using its most important characteristics and reduce the amount of information stored. The algorithm is comprised of a curvature approximation technique, crest point classification and a crest lines tracing algorithm.

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Network-based Rendering Techniques for Large-scale Volume Data Sets,large data sets requires fast access to user-defined parts of the data, because it is virtually impossible to render an entire data set of such an enormous size (several gigabytes) at full resolution, and to transfer such data upon request over the Internet in a reasonable amount of time. Therefore,

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