Now showing items 9-13 of 13

    • KA?MOE: A Clausal Language for CAD MOdeling Systems with Morphological Constraints 

      Milanese, Vitaliano (Blackwell Publishing Ltd and the Eurographics Association, 1990)
      A declarative language (KA?MOE) for CAD-CAM modeling is presented. The language is designed to protect topological models constraints and guarantee their inheritance in complex entities built up from simpler ones. By ...
    • Language for Description of Geometric Configurations 

      Barbic, Janez; Spegel, Marjan (Blackwell Publishing Ltd and the Eurographics Association, 1990)
      This contribution is an informal presentation of some concepts, facts, and definitions about general configurations, as well as a description of our proposed GL/0 language for symbolic description of geometric configurations. ...
    • Parametric Surfaces in PHIGS PLUS: a New Chance for Patterning and Hatching? 

      Bakker, Miente (Blackwell Publishing Ltd and the Eurographics Association, 1990)
      The Polygon Fill style PATTERN and HATCH, which are quite successful in 2D graphics standards as GKS1 and CGI2 have proved to be less suitable for 3D graphics standards as GKS-3D3 and PHIGS4. However, the emerging standard ...
    • Rational Zoom of Bit Maps Using B-Spline Interpdation in Computerized 2-D Animation 

      Durand, Charles X.; Faguy, Daniel (Blackwell Publishing Ltd and the Eurographics Association, 1990)
      This paper describes the application of B-spline interpolation to the problem of rational transformation in computerized 2-D animation. The technique described herewith can also be applied to the resolution independence ...
    • User Interface Management Systems - A Current Product Review 

      Prime, Martin (Blackwell Publishing Ltd and the Eurographics Association, 1990)
      A User Interface Management System is defined and the essential features are listed. Five products are compared and assessed against these criteria