Issue 3
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Item 3D Images of Molecular Properties by Triangulation of Contour Lines(Blackwell Publishing Ltd and the Eurographics Association, 1988) Roch, Michel; Weber, Jacques; Pellegrini, ChristianComputer programs have been developed to display molecular properties on a raster scan device, both as 2D colour-filled contour maps and as 3D solid models. Starting from 2D contour values calculated in parallel molecular grids, a triangulation algorithm, based on the connection of contours lying in successive planes, is applied for generating 3D solid models displayed with Gouraud shading. These methods of presentation have proved to be very useful for demonstrating the main features of chemical bonding and molecular reactivity.Item 7th EUROGRAPHICS UK Conference(Blackwell Publishing Ltd and the Eurographics Association, 1988)Item Book Reviews(Blackwell Publishing Ltd and the Eurographics Association, 1988) Owen, J.F.R.A.Hopgood, D.A.Duce, J.R.Gallop, D. Csutcliffe Introduction to the Graphical Kernel System (GKS)G.Enderle, K.Kansy, G.Pfaff Computer Graphics Programming.Reviewer: Ken Brodlie Department of Computer Studies University of LeedsItem Calendar of Events(Blackwell Publishing Ltd and the Eurographics Association, 1988)Item Colour Raster Operations(Blackwell Publishing Ltd and the Eurographics Association, 1988) Willis, P. J.; Walters, G. W.We propose a form of three-input BitBlt/RasterOp which is useful for pictures constructed in a colour-mapped form as well as in true colour. The model used for this is that of a piece of potentially multicoloured paper on which the picture appears as ink marks. Computationally simple range testing operations can be applied to the source and destination regions to produce many useful effects, some of which we demonstrate. The resulting operations are primitives which can be used to construct more complex operations.Item Computer Graphics and Computer-Aided Design Literature: A Keyword-Indexed Bibliography for the Year 1987(Blackwell Publishing Ltd and the Eurographics Association, 1988) Owen, JonItem Computer Graphics Mailing List(Blackwell Publishing Ltd and the Eurographics Association, 1988)Item Construction of Interactive Programs in Computer Graphics(Blackwell Publishing Ltd and the Eurographics Association, 1988) Dufourd, Jean-FrancoisIn interactive computer graphics, one often finds a gap between sophisticated algorithms, using very high level data structures, and poor methods of program and object construction. Particular programming languages are too readily adopted for solving problems, before a precise specification of the problem to be solved has been formulated.This paper shows that progress can be made by using modern engineering methods to specify and develop graphical software. Two programming techniques are studied here: the algebraic specification of data types and a functional static modular method of problem statement.The paper also discusses these proposals in the context of other modes of computer graphics specification and programming.Item EDITORIAL(Blackwell Publishing Ltd and the Eurographics Association, 1988)Item EUROGRAPHICS 89 Hamburg, 4-8 September 1989(Blackwell Publishing Ltd and the Eurographics Association, 1988) Hopgood, F.R.A.Item Eurographics Workshop on Conformance Testing of the Computer Graphics Interface (CGI)(Blackwell Publishing Ltd and the Eurographics Association, 1988)Item Eurographics Workshops and Book Board Future Directions for Computer Graphics Teaching(Blackwell Publishing Ltd and the Eurographics Association, 1988)Item EUROGRAPHlCS UK Chapter 7th Annual General Meeting 7 April 1988 at the University of Sussex(Blackwell Publishing Ltd and the Eurographics Association, 1988)Item General Assembly of the EUROGRAPHICS Association(Blackwell Publishing Ltd and the Eurographics Association, 1988)AgendaItem GKS Binding to Occam 2(Blackwell Publishing Ltd and the Eurographics Association, 1988)Item HCI International 89 Third International Conference on Human-Computer Interaction(Blackwell Publishing Ltd and the Eurographics Association, 1988)Item Integrating at NCGA(Blackwell Publishing Ltd and the Eurographics Association, 1988) Mumford, Dr AnneItem Offers to EUROGRAPHICS Members(Blackwell Publishing Ltd and the Eurographics Association, 1988)Item P.A. Firby and D.J. Stone"Interference in Computer Graphics"(Blackwell Publishing Ltd and the Eurographics Association, 1988)Item Planar Convex Hull Algorithms in Theory and Practice(Blackwell Publishing Ltd and the Eurographics Association, 1988) Day, A. M.Sequential and parallel planar convex hull algorithms, their applications and some of the problems encountered on implementations are described. Details of Pascal implementations are given for three of the sequential algorithms: Graham s, Floyd-Eddy and the Approximation method. The programs are compared experimentally.