As more and more ME CAD/CAM application programs start using B-splines to represent curves and surfaces, the need is arising for advanced CAD/CAM workstations which can generate realistic images of these curves and surfaces directly from the B-spline description. This article discusses the advantages of using B-splines (in particular trimmed nonuniform rational B-splines) in such applications and the advantages of having a workstation that can display them directly. The authors explain B-splines in an intuitive and largely nonmathematical way. Illustrations are given of mechanical parts which contain both geometric shapes and freeform surfaces and which were rendered directly from B-spline descriptions. These examples are compared to the usual method for rendering such objects to further Illustrate the advantages of rendering trimmed surfaces directly from the B-spline description.


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    Titel :

    Non-Uniform Rational B-Splines


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    Computer Graphics Conference and Exposition ; 1987



    Erscheinungsdatum :

    07.04.1987




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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