Browsing EG1981 Proceedings (Technical Papers) by Title

Now showing items 1-20 of 30

    • ABSTRACT DATA TYPE BASED PROGRAMMING STYLE AND COMPUTER GRAPHICS 

      Giloi, W. K. (The Eurographics Association, 1981)
      The next generation of "intelligent" industrial robots will necessitate off-line programming systems in which generative graphics (picture generation) and cognitive graphics (picture understanding) is combined. This will ...

    • APPLICATION OF GINO-F TO USE DISPLAY FILE TECHNIQUES ON RASTER SCAN DISPLAYS 

      Bramer, B; Sutcliffe, D C (The Eurographics Association, 1981)
      Raster scan displays are now available at lower costs than vector refresh displays. While many offer more facilities such as fill area and colour or greyscale capabilities, few offer a display file facility. It is desirable ...

    • AN APPROACH TO A CALCULATION-MINIMIZED HIDDEN LINE ALGORITHM 

      Hornung, Christoph (The Eurographics Association, 1981)
      Hidden line algorithms based on picture primitives only cannot recognize the areas of a picture completely visible or invisible. By testing each primitive of these areas they produce an overhead of calculations. Moreover ...

    • AUTOMATIC GENERATION OF A CUBIC B-SPLINE REPRESENTATION FOR A GENERAL DIGITIZED CURVE 

      Lozover, O.; Preiss, K. (The Eurographics Association, 1981)
      Cubic B-splines are often used to represent curves and are usually specified by a process of interaction on a graphic screen between the designer and the computer. This paper describes a program which, when given a digitized ...

    • CAPITOL : A LOW COST 3-D MODELLING AND VISUALIZATION SYSTEM FOR INTERIOR DESIGNERS AND ARCHITECTS 

      Webster, C. A. G. (The Eurographics Association, 1981)
      The CAPITOL system aims to provide a flexible but low cost 3-D modelling and visualization system which can be used as an integral part of the creative aesthetic and visual design process by interior designers and architects. ...

    • COMPUTER AIDED DESIGN LANGUAGE 'CADLAN' 

      Bigelmaier, Anton; Brunner, Helmut; Strack, Helmut (The Eurographics Association, 1981)

    • Computer Graphics for Federal Planning in West-Germany 

      Rase, Wolf D. (The Eurographics Association, 1981)
      To satisfy the cartographic requirements for spatial analysis, planning and forecast on the federal level in West Germany the Federal Research Institute for Regional Geography and Regional Planning established a system for ...

    • EXPERIENCES IN THE DESIGN AND SUPPORT OF A GRAPHICS DEVICE DRIVER INTERFACE 

      Reed, Theodore N. (The Eurographics Association, 1981)
      The Common Graphics System (CGS) was developed at the Los Alamos National Laboratory. A standard device driver interface was defined for graphics device drivers and for use by user-callable graphics subroutine packages. ...

    • EXTRACTING LINE MAPS FROM IMAGES 

      Jimenez, Javier; Navalon, Jose L. (The Eurographics Association, 1981)
      We present methods to vectorize automatically information given in raster form, the algorithms used are discussed briefly, and results for some test cases are presented. The compression of information is discussed as well ...

    • FAST INTERACTIVE GRAPHIC ANALYSIS AND PRESENTATION OF IRREGULARLY SPACED LATA z(x,y) 

      Hartwig, R. R. (The Eurographics Association, 1981)
      This is a method to be applied in R&D. 1. A surface is generated, containing exactly all given points z(x,y). 2. The degree of accuracy is gradually specified. One can swap 'ACCURACY for SPEED'. 3. 'Out of the picture' ...

    • THE GEOMETRIC WORKBENCH (GWB) - AN EXPERIMENTAL GEOMETRIC MODELING SYSTEM 

      Mäntylä, Martti; Takala, Tapio (The Eurographics Association, 1981)
      The Geometric workbench (GWB), an experimental. geometric modeling system, is described. It is based on a hybrid representation scheme, where solids are represented by CSG volume trees and boundary representations. Boundary ...

    • A GKS IMPLEMENTATION FOR METEOROLOGICAL APPLICATIONS 

      Ducrot, A.; Lemaire, A.; Watkins, H. (The Eurographics Association, 1981)
      In this paper we describe a GKS implementation made at ECMWF and we point out some problems encountered related to the definition of GKS 6.2 and to the necessity to adapt to the meteorogical applications.

    • A GKS INTERFACE TO A REALTIME ORIENTED RASTER WORKSTATION FOR CAD APPLICATIONS 

      Lindner, R.; Rix, J. (The Eurographics Association, 1981)
      The interface of the Graphical Kernel System GKS is examined with respect to the demands of realtime raster graphics. First the computation time for the different transformations is estimated, to show the great gap between ...

    • Graphics Standards - Where are we ? 

      Hagen, Paul J.W. ten (The Eurographics Association, 1981)
      An overview is given of the state of the standardization efforts of ISO/TC97/SC5/WG2, which currently concentrate on GKS. The standardization activities are illustrated by presenting a recently incorporated concept of ...

    • A HARDWARE APPROACH TO THE CORE SYSTEM OF ACM/SIGGRAPH 

      Möller, Gerd (The Eurographics Association, 1981)
      A new structure of the picture generation pipeline for a high-performance vector refresh graphic system is proposed. This pipeline consists of a graphic processor calculating the viewing transformations, a refresh buffer ...

    • THE HIGH-LEVEL GRAPHICS PROGRAMMING LANGUAGE PASCAL/GRAPH 

      W.Barth,; J.Dirnberger,; W.Purgathofer, (The Eurographics Association, 1981)
      A high-level programming language like PASCAL offers data types, variables, constants and operators, by which the programmer can reflect the actual world as a model inside the computer. The world of numbers and text has ...

    • THE IMPACT OF COMPUTER GRAPHICS ON INDUSTRIAL PRODUCT DEVELOPMENT 

      Vlietstra, J. (The Eurographics Association, 1981)

    • MOVIE.BYU - 1981 

      Christiansen, H. N.; Stephenson, M. B.; Nay, B. J.; Ervin, D. G.; Hales, R. F. (The Eurographics Association, 1981)
      MOVIE.BYU facilitates the display of three-dimensional mathematical, topological, and architectural models as line drawings or as continuous tone shaded images. This software provides the capability to clip and cap three ...

    • A NEW METHOD FOR LOCAL SMOOTH INTERPOLATION 

      Renner, Gabor; Pochop, Vladimir (The Eurographics Association, 1981)
      A new method for interpolation is presented which starts from a given set of data pints. The resulting curve consisting of a set of polynomials has tangent vector continuity in the nodes, and can have straight line sections ...

    • A Revolution in Hardware Systems Design and its Implications for the Graphics Community 

      Clark, James H. (The Eurographics Association, 1981)