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Most computer users need graphics once in a while, even text‐oriented people like the author. While there have always been many different tools for manipulating and…
Most computer users need graphics once in a while, even text‐oriented people like the author. While there have always been many different tools for manipulating and creating graphics on DOS computers (and better ones for Macs), Windows has made such tools more common, less expensive, easier to use, and much more powerful. After defining some basic terms for computer‐based graphics and discussing sources of raw material for those who aren't artists, the author summarizes varieties of graphic software for Windows (and other operating systems). He then describes examples based on personal experience and evaluates two sophisticated graphics packages that libraries can obtain for modest prices. Either package will serve users well, and both packages come with substantial collections of graphic source material (clip art). Finally, the author adds notes on the PC literature for July‐September 1993.
The purpose of this paper is to investigate possibilities to adopt state-of-the-art computer graphics technologies for big data visualization in engineering applications…
The purpose of this paper is to investigate possibilities to adopt state-of-the-art computer graphics technologies for big data visualization in engineering applications. Toward this purpose, a conceptual heterogeneous system is proposed for graphical rendering, which is established with multiple central processing unit cores and multiple graphics processing unit GPUs.
The design of the system supports both general-purpose computation and graphics-related computation. Three processing components are discussed to fulfill the execution requirements in load balancing, data streaming and display. This design fully uses computational and memory resources and enhances the performance with the support of GPU-based parallelization.
The advantages and disadvantages of particular technical methods for each processing component are discussed. The possible ways to integrate them are analyzed.
This work has contributions of using computer graphics technologies in engineering applications.
ARDENT Computer Corporation and Intelligent Aerodynamics, Inc., Princeton, New Jersey, have completed an agreement to jointly market the first computational fluid dynamics…
ARDENT Computer Corporation and Intelligent Aerodynamics, Inc., Princeton, New Jersey, have completed an agreement to jointly market the first computational fluid dynamics software featuring Ardent's integrated, dynamic graphics visualisation package. The FLO87 software, created for use in aircraft design, will be ported to Ardent's new Titan graphics supercomputer.
Describes how the huge problems of managing a large telecommunications network have been addressed in the development of a proprietary system called NETWORKS. Discusses the user′s mental model. Describes a network object model. Presents examples of how object‐oriented graphics can be applied to network management tasks.
The attributes of laser discs are reviewed, as are the “traditional” objections to the use of audiovisual materials — including their lack of specificity to precise…
The attributes of laser discs are reviewed, as are the “traditional” objections to the use of audiovisual materials — including their lack of specificity to precise objectives. Use of authoring systems is described as a means of tailoring laser disc programs to meet those precise objectives, as well as updating aging materials. The flexibility and power of the Video Nova Authoring System is explained and illustrated. A sidebar at the end of the article evaluates the Sony SMC‐70 microcomputer.
This paper aims to present the result of a scientometric analysis conducted using studies on high-performance computing in computational modelling. This was done with a…
This paper aims to present the result of a scientometric analysis conducted using studies on high-performance computing in computational modelling. This was done with a view to showcasing the need for high-performance computers (HPC) within the architecture, engineering and construction (AEC) industry in developing countries, particularly in Africa, where the use of HPC in developing computational models (CMs) for effective problem solving is still low.
An interpretivism philosophical stance was adopted for the study which informed a scientometric review of existing studies gathered from the Scopus database. Keywords such as high-performance computing, and computational modelling were used to extract papers from the database. Visualisation of Similarities viewer (VOSviewer) was used to prepare co-occurrence maps based on the bibliographic data gathered.
Findings revealed the scarcity of research emanating from Africa in this area of study. Furthermore, past studies had placed focus on high-performance computing in the development of computational modelling and theory, parallel computing and improved visualisation, large-scale application software, computer simulations and computational mathematical modelling. Future studies can also explore areas such as cloud computing, optimisation, high-level programming language, natural science computing, computer graphics equipment and Graphics Processing Units as they relate to the AEC industry.
The study assessed a single database for the search of related studies.
The findings of this study serve as an excellent theoretical background for AEC researchers seeking to explore the use of HPC for CMs development in the quest for solving complex problems in the industry.
Virtual Reality (VR) refers to the computer generation of realistic three‐dimensional artificial worlds in which humans, typically equipped with head‐mounted 3D displays, interactive gloves and even whole‐body suits, can be ‘immersed’, and are free to explore and interact with graphical objects in real time, using such natural skills as looking from different angles, moving, pointing, grasping, listening and talking. The early history behind the emergence of VR is short and incredibly intense and characterized by a small group of familiar names. As one of the key figures, Myron Krueger has described it, ‘…Like particles in a fission reaction, personnel from one project disband and reappear with new affiliations’. That reaction continues today, with a reproduction of the American experience in Europe.
We present recent results from an EPSRC funded project VirTex (Virtual Textile Catalogues). The goal of this project is to develop graphics and image‐processing software…
We present recent results from an EPSRC funded project VirTex (Virtual Textile Catalogues). The goal of this project is to develop graphics and image‐processing software for the capture, storage, search, retrieval and visualisation of 3D textile samples. The ultimate objective is to develop a web‐based application that allows the user to search a database for suitable textiles and to visualize selected samples using real‐time photorealistic 3D animation. The main novelty of this work is in the combined use of photometric stereo and real‐time per‐pixel‐rendering for the capture and visualisation of textile samples. Photometric stereo is a simple method that allows both bump map and colour map of a surface texture to be captured digitally. It uses a single fixed camera to obtain three images under three different illumination conditions. The colour map is the image that would be obtained under diffuse lighting. The bump map describes the small undulations of the surface relief. When imported into a standard graphics program these images can be used to texture 3D models. The appearance is particularly photorealistic, especially under changing illumination and viewpoints. The viewer can manipulate both viewpoint and lighting to gain a deeper perception of the properties of the textile sample. In addition, these images can be used with 3D models of products to provide extremely accurate visualisations for the customer. Until recently, these images could only be rendered using ray‐tracing software. However, recent consumer‐level graphics cards from companies such as Nvidia, ATI and 3Dlabs provide real‐time per‐pixel shading. We have developed software that takes advantage of the advanced rendering features of these cards to render images in real‐time. It uses photometrically acquired bump and colour maps of textiles to provide real‐time visualisation of a textile sample, under user‐controlled illumination, pose and flex.