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Now showing items 11-20 of 42
A Reference Model for the Visualisation of Multi-Dimensional Data
(Eurographics Association, 1989)
This paper presents a reference model for the development of systems for the visualization of multidimensional data. The purpose of the reference model is to build a conceptual basis for thinking about multi-dimensional ...
Subdivisions of Surfaces and Generalized Maps
(Eurographics Association, 1989)
The modeling of subdivisions of surfaces is of greatest interest in Geometric Modeling (in particular for Boundary Representation) , and many works deal with the definition of models, which enable the representation of ...
Visualisation of Digital Terrain Data
(Eurographics Association, 1989)
Visualisation technology has found practical application in the field of terrain data processing. A raster data base (RDB-) concept will be introduced, i.e. a multi-dimensional concept of terrain data using elevation data, ...
Deformation of Solids with Trivariate B-Splines
(Eurographics Association, 1989)
Solid geometric models can be deformed to free-form solids by the use of trivariate B-splines. This paper describes the problems of implementing such transformations for shaded rendering. The surfaces are subdivided into ...
Visualizing Curvature Discontinuities of Free-Form Surfaces
(Eurographics Association, 1989)
A new method for the visualization of curvature discontinuities of free-form surfaces is presented. It is based upon an improvement and refinement of the well-known technique of displaying isophotes.
Variations on a Dither Algorithm
(Eurographics Association, 1989)
Mapping continuous-tone pictures into digital halftone pictures, i.e. 0/1-pictures, for printing purposes is a well explored technique. In this paper, one of these algorithms, the two-dimensional error-diffusion algorithm ...
A Parallel Image Computer with a Distributed Frame Buffer: System Architecture and Programming
(Eurographics Association, 1989)
We describe the system architecture and the programming environment of the Pixel Machine - a parallel image computer for 2D and 3D image synthesis and analysis. The architecture of the computer is based on an array of ...
When is a Line a Line?
(Eurographics Association, 1989)
Conformance testing of graphics systems is a very complex and exhausting task. Years of practice with the GKS testing tools have shown a need for the automatic testing of visual output. Indeed, with regard to graphics ...
Adding Parallelism in Object Space to the Rendering Pipeline
(Eurographics Association, 1989)
This paper analyses the problem of adding parallelism to the rendering pipeline and discusses the reasons for advocating an object-space partition. Consideration of the methods of work distribution and the rendering ...
On the Software Structure of User Interface Management Systems
(Eurographics Association, 1989)
Specific systems for the development of user interfaces (Uls) are used today for coping with the increasing problems of human-computer communication. Some of those systems are based on well-defined models for humancomputer ...