Volume 03 (1984)
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Item EUROGRAPHICS - The First Five Years(Blackwell Publishing Ltd and the Eurographics Association, 1984)Item UK Chapter of the Eurographics Association(Blackwell Publishing Ltd and the Eurographics Association, 1984)Item EUROGRAPHICS U.K. Chapter Financial Reports(Blackwell Publishing Ltd and the Eurographics Association, 1984) Watkins, H KItem Colour Graphics and te Fifth Generation Workstation(Blackwell Publishing Ltd and the Eurographics Association, 1984) Willis, P JIf we accept the above idiosyncratic views, what kind of architecture will the fifth generation machine offer to graphics users? We would hope to see high quality colour raster graphics, tightly coupled to a sophisticated processor but in its own address space. It should allow for pictures much larger than the screen and also at higher resolution. The local disk must be organized to handle the large amounts of data which picture manipulation on this scale calls for. Disk and main memory must have support for manipulation of two dimensional arrays of pixel data and the filing system and its utilities must reflect this. Response is more important than ever.The software to be built on to this hardware is still a matter for conjecture and depends on whether a particular combination of hardware and language family can be packaged to give clear performance advantages. However a real-time style operating system is essential.Timescales for suitable architectures seem quite short, around two or three years, with software developing beyond that. Certainly such a machine will contain far more graphical software in the operating system than any before and ought to satisfy a wide range of raster graphics applications.Item Press Release by ANSC X3H3 following the meeting at Carmel 1st-5th October 1984(Blackwell Publishing Ltd and the Eurographics Association, 1984)Item News(Blackwell Publishing Ltd and the Eurographics Association, 1984)Item PHIGS - Programmer’s Hierarchical Interactive Graphics System(Blackwell Publishing Ltd and the Eurographics Association, 1984) Hewitt, W.T.Item EUROGRAPHICS UK CHAPTER 3rd UK Conference CALL FOR PAPERS(Blackwell Publishing Ltd and the Eurographics Association, 1984) Morrow, TerryItem Oriented geometric Objects in Computer Graphics and Numerical Control(Blackwell Publishing Ltd and the Eurographics Association, 1984) Barbic, J.; Dacar, F.; Spegel, M.Conventional natural - language as well as computer - oriented descriptions of geometric constructions by means of geometric relationships (parallelism, tangency, etc.) and attributes (INSIDE, NEAR, MIDDLE, X-LARGE, Y-SMALL, etc.) do not offer a clear and efficient method for selecting a specific object out of a number of possible alternatives. This paper describes a systematic solution to the problem based upon the notions of orientation of geometric objects, of smooth transitions from one object to another (referred to as coherent tangency), and upon locality. Using the notions of object orientation and coherent tangency, some tangent constructions in a plane are developed. The method is shown to employ a minimum set of attributes - at most one, characterizing the intrinsic parameters of geometric objects.Item Computer Art(Blackwell Publishing Ltd and the Eurographics Association, 1984) Truckenbrod, JoanItem Computer Graphics Forum - Algorithm Section(Blackwell Publishing Ltd and the Eurographics Association, 1984) Hewitt, W.T.Item Calendar of Events(Blackwell Publishing Ltd and the Eurographics Association, 1984)Item Managing Multiple Context-Frames through GKS(Blackwell Publishing Ltd and the Eurographics Association, 1984) Herman, I.Item CAD For Intelligent Activity of an Autonomous Submersible System(Blackwell Publishing Ltd and the Eurographics Association, 1984) Russell, G T; Lane, D MThis paper describes a CAD facility for the design of automatic guidance and control strategies for an unmanned autonomous submersible. The facility utilises a three dimensional colour graphics display of the scene and vehicle trajectory, providing a man/ machine interface for the operator in addition to vehicle motion simulation with six degrees of freedom. A primary application envisaged for the CAD facility is in the design of scene analysis algorithms and the intelligent control system structure, for an autonomous submersible employing scanning sonar as its target sensor.Item EUROGRAPHICS 84 at the Bella Centre Copenhagen September 10 - 14, 1984(Blackwell Publishing Ltd and the Eurographics Association, 1984)Item EUROGRAPHICS ’85 at the Acropolis - Nice(Blackwell Publishing Ltd and the Eurographics Association, 1984)Item Colour Gradation, Shading and Texture Using a Limited Terminal(Blackwell Publishing Ltd and the Eurographics Association, 1984) Magnetat-Thalmann, N; Chourot, N; Thalmann, DThis paper presents a method of colouring pictures by using three kinds of gradation techniques: gradation from a figure to a point, gradation from a figure to a line segment and gradation from a figure to another figure. Intermediate figures are computed by homothesis or interpolation. The gradation is obtained by colouring these intermediate figures. The colours are simulated by using programmed pattern. This approach has allowed us to produce realistic images with a hardware device that is not very good for these types of applications. because of its restricted intensity and colour capabilities. Colour distribution algorithms and gradation techniques are explained in detail. A few examples with shading and texture are shown.Item Executive Committee Elections(Blackwell Publishing Ltd and the Eurographics Association, 1984)Item General Assembly of the EUROGRAPHICS Association Thursday 13 September 1984 Bella Center, Copenhagen(Blackwell Publishing Ltd and the Eurographics Association, 1984)Item Change of Chief Editor(Blackwell Publishing Ltd and the Eurographics Association, 1984) Duce, David