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An indirect approach for building hex-dominant meshes is proposed: a tetrahedral mesh is constructed at first and is recombined to create a maximum amount of hexahedra. The efficiency of the recombination process is known to significantly depend on the quality of the sampling of the vertices. A good vertex sampling depends itself on the quality of the underlying frame field that has been used to locate...
We propose here an indirect approach for building hex-dominant meshes, using the recombination of tetrahedra to create hexahedra. The efficiency of this recombination depends on the location of the initial points. A two-dimensional frame field is obtained on the boundaries by solving an elliptic PDE. We first propose a procedure to extend the two dimensional field inside the volume and to obtain a...
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