QUALITY MESHING OF POLYHEDRA WITH SMALL ANGLES
نویسندگان
چکیده
منابع مشابه
Weighted Delaunay Refinement for Polyhedra with Small Angles
Recently, a provable Delaunay meshing algorithm called QMesh has been proposed for polyhedra that may have acute input angles. The algorithm guarantees bounded circumradius to shortest edge length ratio for all tetrahedra except the ones near small input angles. This guarantee eliminates or limits the occurrences of all types of poorly shaped tetrahedra except slivers. A separate technique call...
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Consider an orthogonal polyhedron, i.e., a polyhedron where (at least after a suitable rotation) all faces are perpendicular to a coordinate axis, and hence all edges are parallel to a coordinate axis. Clearly, any facial angle (i.e., the angle of a face at an incident vertex) is a multiple of π/2. Also, any dihedral angle (i.e., the angle between two planes that support to faces with a common ...
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Giving a (partial) solution to a problem of S. Fekete [3] and S. Fekete and G.J. Woeginger [4] we show that given a finite set X of points in the plane, it is possible to find a polygonal path with |X|−1 segments and with vertex set X so that every angle on the polygonal path is at least π/9. According to a conjecture of Fekete and Woeginger, π/9 can be replaced by π/6. Previously, the result h...
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This paper presents recent progress and extensions to TriQuaMesh (TQM) [1], targeted at providing good quality surface meshes: Increased robustness of the 1D mesh generator to handle highly non linear size variations; interior node generation driven by a size variation interpolation domain; improved mesh distortion reduction between the parameter space and the physical space. The concepts of Si...
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ژورنال
عنوان ژورنال: International Journal of Computational Geometry & Applications
سال: 2005
ISSN: 0218-1959,1793-6357
DOI: 10.1142/s0218195905001774