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Smeltzer G T-A, Roelen W, Wagter H

Presentation of design models

Abstract: CAD systems offer new and improved techniques for the presentation of designs. This paper presents several of these techniques that are based upon computer-generated images of a 3-dimensional computer model of a design. These new techniques include holography, animating and virtual reality. Some of the techniques that can be improved by CAD systems are paper scale modeling and stereoscopy. - presentation purposes, such as showing a design or explaining functional or - presentation activities, such as modeling a design or generating images; - presentation techniques, as mentioned above. techniques employed and the production activities. Because production activities can be very time consuming, the purpose of the presentation and the preferred techniques should normally be well specified at the beginning of a presentation production to makethe latter creative productive. However, since most of the computer-based presentation techniques are still new to most designers, it will be very difficult to make the right specifications of purpose, techniques and activities at the beginning of the production process. That means that there is a need for a better understanding of the techniques and for a more flexible way of producing presentations of designs. Calibre has developed tools to make the production of presentations more flexible. One of the tools is a program (ModelCom) that converts different 3-dimensional computer models of designs (design models) into models for different programs that are able to generate images. Another tool is a program (ImageCom) for converting different generated images into image descriptions for different presentation techniques. These tools are of great importance for Calibre's exploration of various techniques for the presentation of design models. This exploration gives Calibre the unique opportunity to present a varied menu of presentation techniques and related future expectations. The paper describes: technical aspects; There exists a relationship between the purpose of a presentation, the presentation

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Full text: content.pdf (1,740,249 bytes) (available to registered users only)

Series: w78:1991 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.synthesis (0.063980) class.software development (0.010552) class.software-machine (0.009198)
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Permission to reproduce these papers has been graciously provided by Eindhoven University of Technology.


Wagter H, Smeltzer G, Roelen W

A realistic view to virtual reality: new possibilities in construction

Abstract: The world of computer aided design has been characterized for many years be a constant flow of new approaches and techniques. Itis difficult to recognize the real value of the different items. Some of these techniques are computer aided (stereo)imaging, animation, holography and virtual reality. These systems and thesetechniques are mainly used for the presentation of a final design.Because of the constantly improving performance of CAD systems andtheir users, these systems are more and more useful for the evaluation of several design proposals during the design process. However, because of the great impact that artistic images and advanced animations have on a presentation of a designit seems tobe more rewarding to use CAD systems for this purpose only. Even new techniques like Virtual Reality systems seem to be valued in relation with their presentation capabilities instead of their possibilities to support design modeling and evaluation during thedesign process. This paper describes the main results of research and development work on a Virtual Reality system. One of the results is a Virtual Reality application that will allow differentparticipants in the designprocess to work together in a virtual building on a scale of 1:1. This system, a multi user design system, will offer modules for modeling and for evaluation. With these modules this system will show that new media are not only useful for the improvement of design presentations but that they can also be used for the improvement of the building performance. Virtual Reality systems are based on different existing presentation techniques, like photo-realistic images, stereo-images and real time- animation. The added value of this kind of CAD systems is determined by a new kind of interface (a sensored interface) for the control over the animation, displayed through the head-mounted displays oreye phone and for the controlover a 3D pointer for the selection of commands and objects in a model. For a bett

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Full text: content.pdf (939,094 bytes) (available to registered users only)

Series: w78:1992 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.synthesis (0.055779) class.software-machine (0.053117) class.impact (0.038841)
Similar papers:
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Permission to reproduce these papers has been graciously provided by Research Press of the National Research Council of Canada. The support of the editor, Dr. Dana Vanier, is gratefully appreciated.


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