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Delaunay Meshing and Repairing of NURBS Models
Author(s) -
Xiao X.,
Alliez P.,
Busé L.,
Rineau L.
Publication year - 2021
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/cgf.14362
Subject(s) - delaunay triangulation , trimming , polygon mesh , computer science , mesh generation , surface (topology) , cad , algorithm , topology (electrical circuits) , engineering drawing , computer graphics (images) , mathematics , geometry , finite element method , engineering , structural engineering , combinatorics , programming language
Abstract CAD models represented by NURBS surface patches are often hampered with defects due to inaccurate representations of trimming curves. Such defects make these models unsuitable to the direct generation of valid volume meshes, and often require trial‐and‐error processes to fix them. We propose a fully automated Delaunay‐based meshing approach which can mesh and repair simultaneously, while being independent of the input NURBS patch layout. Our approach proceeds by Delaunay filtering and refinement, in which trimmed areas are repaired through implicit surfaces. Beyond repair, we demonstrate its capability to smooth out sharp features, defeature small details, and mesh multiple domains in contact.