Information rich temporal virtual models using X3D

Authors: Robina Hetherington, Brian Farrimond & Steve Presland

Abstract:

This paper explores the use of eXtensible Mark-up Language (XML) technologies, including eXtensible three-Dimensions (X3D), Scene Application Interface (SAI), eXtensible path (Xpath) and eXtensible Stylesheet Language (XSL) to display and manipulate a model along with associated temporal data. X3D, which is the new standard for the display of three-dimensional models over the World Wide Web, offers significant improvements for real-time client-side manipulation over other methods available for use on the Internet. These improvements are due to X3D being an application of XML. Real-time client side manipulation and display of a model and associated textual information through use of a Web Browser and Plugin is demonstrated. A single file is employed to contain all data related to how the structure has evolved and developed over time. This allows the user to view and explore the model in different states (times) and to read relevant historical textural information.

Ultra-real or symbolic visualization? The case of city through time

Authors: George Sidiropoulos & Athanasios Vasilakos

Abstract:

The distinctive character of digital technology has created new conditions of approach and processing. The city as the object of visualization has its own peculiarities as a separate object, notwithstanding the demands imposed by these new conditions. The medium’s interactivity, the requirements of digital distribution, the necessary compromises and prerequisites, shape a special state of 3D modeling.

This paper researches on the one hand the conditions for data collection, the state of data, its documentation and the production of the 3D model and on the other a theoretical framework of simulation and reproduction of the model of the "city" based on reality. Man has never stopped creating works of art. The history of art testifies to this, but what we seek is the creation of a model with the qualities of reality. Through the excellent possibilities that digital technology has made available for the production of an ultra-real model, we have managed to make the model of the city come alive.

The conclusions result from the applications used employing popular software programs (AutoCAD, ArcVIEW (3D analyst), 3D Studio MAX). This experience led to the formulation of a 3D model creation framework which allows for a greater degree of realistic re-creation without coming into conflict with scientific ethics, but in fact, demonstrating them.