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Now showing items 11-20 of 65
From Math Comes Beauty: Monkey Curves, Spirals, and Saddles
(Blackwell Science Ltd and the Eurographics Association, 1991)
This informal note presents computational recipes for producing visually interesting surfaces.
At Last an ISO C Binding of GKS
(Blackwell Science Ltd and the Eurographics Association, 1991)
The C4 bindings of GKS1 and other semantic computer graphics standards like GKS-3D2 and PHIGS3 are long overdue. While GKS was completed in 1985 and GKS-3D2 (and PHIGS3) became an international standard in 1988, none of ...
Computer Art from Numerical Methods
(Blackwell Science Ltd and the Eurographics Association, 1991)
Zero-finding methods, Euler s method and the numerical algorithms elaborated as package subroutines are studied by using a computer graphics technique. The patterns obtained show chaotic behaviour (science) and beauty of ...
Classification of Quad-encoding Techniques
(Blackwell Science Ltd and the Eurographics Association, 1991)
Many quad encoding technique have been published previously, using a variety of approaches to the different facets of quad storage, representation and manipulation. We review the major classes and identify three parameters ...
Quadtrees, Transforms and Image Coding
(Blackwell Science Ltd and the Eurographics Association, 1991)
Transforms and quadtrees are both methods of representing information in an image in terms of the presence of information at differing length scales. This paper presents a mathematical relationship between these two ...
The GKS Input Model in Manifold
(Blackwell Science Ltd and the Eurographics Association, 1991)
This paper describes the specification of the GKS input model in Manifold. The aim of the work reported in this paper was two-fold: first, to review the communication patterns implied by the GKS input model, and second, ...
Inverse Displacement Mapping
(Blackwell Science Ltd and the Eurographics Association, 1991)
Inverse displacement mapping is a variant of displacement mapping which does not actually perturb the geometry of the surface being mapped. It is thus a true texture mapping technique which can be applied during rendering ...
A Physically Based Colour Model
(Blackwell Science Ltd and the Eurographics Association, 1991)
We propose an intuitively simple way of representing colour which has the additional virtue that, it permits mixing and overlaying of transparent and opaque paints to an arbitrary degree. Our approach is related to the ...
Cartographic Algorithms: Problems of Implementation and Evaluation and the Impact of Digitising Errors
(Blackwell Science Ltd and the Eurographics Association, 1991)
Cartographic generalisation remains one of the outstanding challenges in digital cartography and Geographical Information Systems (GIS). It is generally assumed that computerisation will lead to the removal of spurious ...
Fat curves
(Blackwell Science Ltd and the Eurographics Association, 1991)
Fat curves in two-dimensional Euclidean space are discussed. Previous work on fat curves is reviewed and a new definition is given for a fat curve having a smooth axis. The joining of two fat curves is discussed and a ...