Browsing EG1984 Proceedings (Technical Papers) by Title

Now showing items 23-35 of 35

    • A NEW DISPLAY FILE STRUCTURE FOR LINE AND SURFACE PRESENTATIONS 

      Krmer, Thomas; Rix, Joachim (The Eurographics Association, 1984)
      In the design process of 3D objects i t will be helpful to use not only an output pipeline design for a wire frame model on a vector device but also for shaded surface presentations on a raster device. To reduce the total ...

    • NUMERICAL SIMULATION AND VIDEO DISPLAY OF DYNAMIC PROBLEMS 

      Janick, CARNET; Jacques, DUJARDIN (The Eurographics Association, 1984)
      The increasing ability of computers to digest and regurgitate numerical results requires graphic displays which allow new and complex problems to be dealt with. In this paper we present software designed to study phenomena ...

    • A PAINT PROGRAM FOR THE GRAPHIC ARTS IN PRINTING 

      Willis, P J (The Eurographics Association, 84)
      There is considerable scope for the application of computer techniques to help the graphic designer working with printed products, provided that pictures of high technical quality result. Described here is the product of ...

    • QUADTREE SCAN CONVERSION 

      Oliver, M.A.; King, T.R.; Wiseman, N.E. (The Eurographics Association, 1984)
      An efficient method is described for turning a quadtree encoding of an image into scan lines. When implemented in hardware it becomes possible to generate video in real time for a raster display without the need for a ...

    • RAY TRACING OBJECTS DEFINED BY SWEEPING A SPHERE 

      Wijk, J.J. van (The Eurographics Association, 1984)
      The basic calculation underlying ray tracing is that of the intersection of a line with the surfaces of an object. A method is presented here for performing this calculation for a new and powerful class of objects, those ...

    • SHAPING THE FUTURE A SYSTEMS APPROACH TO MIS PLANNING 

      Kirkley, John L. (The Eurographics Association, 1984)

    • STEPS TO EFFECTIVE BUSINESS GRAPHICS 

      Macllroy, AI; Wyman, Peggy (The Eurographics Association, 1984)

    • SUDS - SUrface Description System 

      Moretonl, Henry P.; Bergeron, R. Daniel (The Eurographics Association, 1984)
      A library of routines has been developed for the design of arbitrarily curved three-dimensional surfaces. The routines provide for the description and editing of surfaces. Surfaces are defined by families of parametric ...

    • Three-Dimensional Data Input by Selection of Hierarchically Defined Blocks 

      Yamaguchi, K.; Inamoto, N.; Kunii, H. S.; Kunii, T. L. (The Eurographics Association, 1984)
      This paper discusses inputing three dimensional solid object data by means of a two dimensional tablet. This method involves refining an object by gradually generalizing a class of 'permissible' objects. The design of an ...

    • Twixt: A 3D Animation System 

      Gomez, Julian E. (The Eurographics Association, 1984)
      This paper describes a visually interactive 3D computer animation system. Animation is controlled by lists of events stored in tracks. Tracks are interpolated by functions that have an arbitrary degree of knowledge about ...

    • TWO DISPLAY ALGORITHMS FOR OCTTREES 

      Oliver, M.A. (The Eurographics Association, 1984)
      This paper deals with the problem of the fast display of a three dimensional object that is represented by an Octtree with the Octtree encoded as a simple linear structure without pointers. Two algorithms are described: ...

    • A TWO-DIMENSIONAL CLIPPING DIVIDER 

      MERIAUX, Michel (The Eurographics Association, 1984)
      The clipping problem is the heart of a lot of algorithms to produce computer generated images. Sutherland and Hodgman proposed a reentrant clipping algorithm ; we propose here two solutions to achieve a true two-dimensional ...

    • USER INTERFACE: CONCEPTS AND SPECIFICATIONS 

      Spliid, Axel Monrad; Sorgen, Amos (The Eurographics Association, 1984)
      A CAD/CAM/CAE system may be very powerful, but its acceptance among a user group depends heavily on its User Interface. It is very important that the User Interface of such a system can easily be adapted to the engineer's ...