Volume 05 (1986)

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    EUROGRAPHICS Individual Membership Application
    (Blackwell Publishing Ltd and the Eurographics Association, 1986)
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    A Functional Approach to Animation
    (Blackwell Publishing Ltd and the Eurographics Association, 1986) Arya, Kavi
    We investigate the benefits of using a functional language to reason about and to implement animation. Since animation concerns pictures changing over time, we consider the manipulation of movies or picture sequences. A compact set of primitive operations over movies is introduced and its use as the basis for an animation system is illustrated. The notion of the behaviour of an animated character is formalised and we show how simple behaviours may be combined to create more complex behaviours. We then show how higher-order functions allow us to construct a variety of useful tools which lead to a highly concise functional script.
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    Beyond Hershey: A Representation of Fonts for Computer Graphics
    (Blackwell Publishing Ltd and the Eurographics Association, 1986) Gossling, T.H.
    Hershey-s "Repertory of Occidental Fonts" is well known in the field of computer graphics, as a set of character-forms which is superior to the cruder representations used when space was at a premium. This paper gives a method of extending Hershey-s format to include true curves, thus giving near typographical quality.
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    EUROGRAPHICS Institutional Membership Form
    (Blackwell Publishing Ltd and the Eurographics Association, 1986)
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    Integration of Town Planning, Landscaping and 3D-Architecture: Results and Future Enhancements since Camp -83
    (Blackwell Publishing Ltd and the Eurographics Association, 1986) Joosten, Roy
    Through major innovations in software development Graphicomp succeeded in 1983 in creating ILP program (Intelligent Library Program) as a part of the ICAADS package (Integrated Computer Aided Architectural Design System) which enables maintenance of unlimited intelligent library items, in contrast to huge limited library figure files using large amounts of active diskspace unproductively.Further topics will be discussed: . Library Graphics aspects . Relations between library figures and architectural networks. . ACE menus. . Relations between various ACE applications. . Image design and solid modelling in ACE. . Relations towards 3D town planning and management. . Features of 3D-landscaping with image design.
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    EUROGRAPHICS UK Chapter 5th Annual General Meeting 25th March 1986 at Glasgow University
    (Blackwell Publishing Ltd and the Eurographics Association, 1986)
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    EUROGRAPHICS -86 Art Competition
    (Blackwell Publishing Ltd and the Eurographics Association, 1986)
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    Calendar of Events 1987
    (Blackwell Publishing Ltd and the Eurographics Association, 1986)
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    Generating Lines Using Quadgraph Patterns
    (Blackwell Publishing Ltd and the Eurographics Association, 1986) Parsons, Michael S.
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    A Method of Displaying Transformed Picture Rectangles Using GKS Raster Functions
    (Blackwell Publishing Ltd and the Eurographics Association, 1986) Schumann, H.; Kotzauer, A.
    The GKS raster functions Fill Area and Cell Array allow area primitives in Computer Graphics to be used in a GKS environment.In implementing these functions, the computing time and memory required are important factors in deciding their usability especially for interactive work. The trend in the implementation of algorithms for such primitives is to use specialized hardware.In this paper, algorithms are introduced which are suitable for computers of low and middle efficiency and provide a sufficient image quality and an acceptable response time for dialogues.
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    Errata
    (Blackwell Publishing Ltd and the Eurographics Association, 1986)
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    EDITORIAL
    (Blackwell Publishing Ltd and the Eurographics Association, 1986)
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    EUROCRAPHICS UK 1986: Clasgow Conference
    (Blackwell Publishing Ltd and the Eurographics Association, 1986) Matthew, A.J.
    The Conference was held on the three days 24th to 26th March at Glasgow University, the first day devoted to two parallel tutorials, the second day opening the conference proper and including meetings of special interest groups and the final day consisting of submitted and invited papers.
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    EUROGRAPHICS Institutional Membership Form
    (Blackwell Publishing Ltd and the Eurographics Association, 1986)
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    Shading of Solid Voxel Models
    (Blackwell Publishing Ltd and the Eurographics Association, 1986) Bright, Stephen; Laflin, Susan
    The purpose of any technique for modelling structures is to store a representation of them, and to produce two dimensional images such that a viewer correctly perceives the three dimensional nature of the structures. There are many methods for including three-dimensional visual cues in a two-dimensional image, but probably the most important one is that of shading. The intensity of light at any point on the model depends mainly on the orientation of the surface at that point with respect to the direction of the light source. In solid voxel modelling this information has to be extracted from the model. The discretisation inherent to modelling techniques has to be allowed for if successful shading is to be achieved. This paper considers the problems caused by the discretisation in solid modelling and offers compression and interpolation techniques to reduce them.
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    Book Reviews
    (Blackwell Publishing Ltd and the Eurographics Association, 1986)
    Book reviewed in this article:1. COMPUTER GRAPHICS - A Programming Approach2. Computer Graphics3. User Interface Management Systems
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    Venues for Future EUROGRAPHICS Annual Events
    (Blackwell Publishing Ltd and the Eurographics Association, 1986)
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    EUROGRAPHICS Individual Membership Application
    (Blackwell Publishing Ltd and the Eurographics Association, 1986)
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    EUROGRAPHICS Membership
    (Blackwell Publishing Ltd and the Eurographics Association, 1986)
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    Displaying Relevant Features of Protein Molecules
    (Blackwell Publishing Ltd and the Eurographics Association, 1986) Poet, Ron; Milner-White, E. James
    We present a novel type of computer generated picture in which the positions of the main chain alpha carbon atoms are averaged and the different types of hydrogen bonds between main chain atoms are represented by lines of different colours and thicknesses joining the alpha-carbon atoms. This allows various types of helices, beta-sheets, beta-bulges and turns to be visualized. One beta-hairpin turn exhibits a structural feature at the loop end that has previously been described as a G1 beta-bulge. It occurs in another protein by itself, and can thus be said to be a new sort of turn.