Browsing EG1984 Proceedings (Technical Papers) by Issue Date

Now showing items 21-35 of 35

    • GENERATING HIGH QUALITY PICTURES BY RAY-TRACING 

      BOUVILLE, C.; DUBOIS, J.L.; MARCHAL, I. (The Eurographics Association, 1984)
      Ray-casting techniques provide a very general framework in which many problems can be solved in a much easier way than with conventional methods. This is particularly true for the illumination model when a high level of ...

    • 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 ...

    • DRAWING OF AN UNUSUAL KIND OF DIAGRAMS - NOMOGRAM DRAWING 

      Kjelldahl, Lars (The Eurographics Association, 1984)
      Diagram drawing has traditionally been a major part of computer graphics applications. During the last few years we have seen new trends in this area. The quality of diagram drawing has increased and diagrams has been used ...

    • 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 ...

    • STEPS TO EFFECTIVE BUSINESS GRAPHICS 

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

    • 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 ...

    • A COMPUTER GRAPHIC APPROACH TO LATERAL SKULL CEPHALOSTAT RADIOGRAPH ANALYSIS FOR ORTHODONTIC DIAGNOSIS AND TREATMENT PLANNING 

      Hubbold, R.J.; Eid, A.A. (The Eurographics Association, 1984)
      Interactive computer graphics programs have been developed to permit the clinical application of a new method of analysis of craniofacial discrepancies and its use for diagnosis and testing alternative treatment plans. The ...

    • 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 ...

    • IMPROVING COMPUTER GRAPHICS TOOLS FOR ARCHITECTS 

      Ekeberg, Oerjan; Engblom, Carl-Henrik; Kjelldahl, Lars; Lundequist, Jerker; Thörnblom, Ingvar (The Eurographics Association, 1984)
      During the last ten years a lot of work has been done in architectural applications using computers and especially computer graphics. It is however obvious that these new tools have not been fully accepted by architects ...

    • COMPUTER GRAPHICS FOR VISUALIZING SIMULATION RESULTS 

      NAKAMAE, Eihachiro; YAMASHITA, Hideo; NISHITA, Tomoyuki (The Eurographics Association, 1984)
      Computer graphics techniques for visualizing the following simulation results are developed: (1) lighting designs for different type sources such as point sources, linear sources, area sources, and polyhedron sources, (2) ...

    • EXPERIENCES WITH NEW IMAGE COMPONENT ALGORITHMS 

      Samet, Hanan; Tamminen, Markku (The Eurographics Association, 1984)
      We present experiences and comparisons evaluating a fast algorithm for connected component labeling of quad- and octrees. The algorithm works without loss of efficiency on linear tree representations that may reside in ...

    • 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 ...

    • CONVENTIONAL ELEMENTS OF ENGINEERING DRAWINGS - FREE FORM CURVES 

      Renner, G. (The Eurographics Association, 1984)
      Technical objects which are typically described by free-form surfaces, usually also contain conventional elements (planes, cylinders, cones). Consequently, methods and systems for defining free-form shapes are advantageously ...

    • HOW INTELLIGENT CAN BUSINESS GRAPHICS SOFTWARE BE? 

      Jones, Peter R. (The Eurographics Association, 1984)
      This paper justifies the question posed in its title, by pointing out some of the reasons which make the use of a "quasi" automatic system necessary, when customized performances of the intelligence built in a business ...

    • 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 ...