Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Tetrahedralization"”.
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An Algorithm for Triangulating 3D Polygons
… that the triangles in the Delaunay tetrahedralization of the polygon vertices offer a reasonable trade off between performance and optimality.
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Fully anisotropic split-tree adaptive refinement mesh generation using tetrahedral mesh stitching
… to determine neighbors robustly, and with the tetrahedralization of only a small amount of space around the geometry, sliver cells and inverted elements are avoided. The code uses Riemannian Metric Tensors to generate geometry-appropriate spacing and is capable of adaptive meshing from a …
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Transformation of digital building models from boundary representation to tetrahedral space partitioning
… how this algorithm differs from existing tetrahedralization algorithms. Second, the thesis provides a detailed description and analysis of the proposed algorithm, outlining its design, input requirements, output characteristics, and the underlying geometric and topological principles. The …
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Modelling Three-dimensional Fields in Geoscience with the Voronoi Diagram and its Dual
… Voronoi diagram (VD) and its dual the Delaunay tetrahedralization (DT). I argue that constructing the VD/DT of the samples that were collected to study the field can be beneficial for extracting meaningful information from it. Firstly, the tessellation of space obtained with the VD gives a clear …
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Finite Element Modeling Driven by Health Care and Aerospace Applications
… a new parallel mesh generator for efficient tetrahedralization of piecewise linear complex domains in aerospace. CAD-based meshing algorithms typically improve the shape of the elements in a post-processing step due to high complexity and cost of the operations involved. On the contrary, our …
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Automatic Linear and Curvilinear Mesh Generation Driven by Validity Fidelity and Topological Guarantees
<p>Image-based geometric modeling and mesh generation play a critical role in computational biology and medicine. In this dissertation, a comprehensive computational framework for both guaranteed quality linear and high-order automatic mesh generation is presented. Starting from segmented images, a …