Titlebook: Geometric Modelling; Dagstuhl 1993 H. Hagen,G. Farin,H. Noltemeier Conference proceedings 1995 Springer-Verlag/Wien 1995 Nurbs.Spline.Splin

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Control Point Representations of Trigonometrically Specified Curves and Surfaces,A representation of trigonometric curves and surfaces is introduced that allows intuitive control of the shape. The representation is obtained by transferring the Bernstein-Bézier representation of polynomials in geometric modeling to trigonometrically represented shapes.

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Towards Optimality in Automated Feature Recognition,Various approaches to the automated recognition of form features from geometric models are reviewed, and their relative advantages and disadvantages analysed. A synthesis is then made of the best aspects of the methods surveyed, and suggestions put forward for the development of improved methods for the future.

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Das Schrifttum der Wirtschaftsphilosophiethe user and are then automatically maintained throughout design modifications. Capturing the intended design concepts in an intelligent CAD data structure, this approach constitutes a major step forward in CAD technology. Due to this approach, many errors are presented that conventional systems are prone to during design changes.

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Solid Modeling with Constrained Form Features,the user and are then automatically maintained throughout design modifications. Capturing the intended design concepts in an intelligent CAD data structure, this approach constitutes a major step forward in CAD technology. Due to this approach, many errors are presented that conventional systems are prone to during design changes.

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0344-8029 le impulses for new research. Topics explored include NURBS, product engineering, object oriented modelling, solid modelling, surface interrogation, feature modelling, variational design, scattered data algorithms, geometry processing, blending methods, smoothing and fairing algorithms, spline conve

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https://doi.org/10.1007/978-3-642-36436-5hedron, locally adjoined pyramid and face of a Nef polyhedron are carefully explained. Data structures for representing Nef polyhedra are discussed, and an implemented test-system is presented with the aid of a small application.

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Bau und Einrichtung von Molkereien,l rapid prototyping techniques on the representation of the surface geometry are addressed. These ideas are then employed to obtain the generic design of an engine inlet port of the type which induces swirl, and the results of an analysis of the flow using a powerful automatic mesh generator and analysis package (VECTIS) are presented.