Browsing EG1984 Proceedings (Technical Papers) by Title

Now showing items 26-35 of 35

    • 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 ...