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 7 of 7 for “"Parametric Surface"”.
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Parametric curve and Partial Differential Equation-based parametric surface reconstruction from point clouds
… of representations used to model curves and 3D surfaces in the digital world: explicit and implicit. Explicit representations include parametric representations, poly- gons, and similar methods, while implicit representations encom- pass level sets, distance functions, and Constructive Solid Ge- …
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A deterministic surface estimation algorithm using parametric line equations
In this thesis we develop a new deterministic surface estimation algorithm. Given a network of scattered data in the three-dimensional space, we use the Delaunay's Triangulation Method to connect the given points with triangles, subsequently we use out method to interpolate within the path defined …
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Intersection of B-spline surfaces by elimination method
Parametric surface representations such as the B-spline and Bezier geometries are widely used among the aerospace, automobile, and shipbuilding industries. These surfaces have proven to be very advantageous for defining and combining primitive geometries to form complex models. However, the task of …
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Numerical and experimental investigation of the effect of an inverted bow on the hydrodynamic performance of Navy combatant hull forms
… developing a set of basic curves that define the parametric surface of the new shape. Two 1/80th scale models were built, one of the original and one of the inverted bow frigate, with the same material, machining and finishing standards. Model tests were conducted in the United States Naval …
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Surface-surface intersection with validated error bounds
… curve segments between continuous rational parametric surfaces, typically rational polynomial parametric surface patches. Using a validated ordinary differential equation (ODE) system solver based on interval arithmetic, we obtain a continuous, validated upper bound for the intersection …
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Point-based mathematics for computer-aided manufacture
… feasibility of machining high quality sculptured surfaces directly from a point-based definition. The work is founded on the strategy of using a sparse set of points to characterise shape although it is assumed that an appropriately dense definition can be generated by the use of some unspecified …
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Constructive geometry parametrization tools for computer-aided design, analysis, and optimization of aeropropulsive systems
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms