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CLP a technology for the interactive resolution of spatial configuration tasks in a virtual environment

Lookup NU author(s): Dr Carlos CalderonORCiD



In this paper, we present a new framework for the use of Virtual Reality (VR) in engineering design for configuration applications that, while preserving the natural interaction of traditional VR Systems, support the expression of design knowledge in the Virtual Environment (VE) and the visualisation of the user's interactions with the configuration. Traditional VR systems support the visual exploration of a design solution but do not assist the user in exploring alternative solutions based on domain knowledge. Extending previous work in the area of Intelligent Virtual Environments (IVEs), we propose an intelligent configuration system based on constraint logic programming (CLP), integrated in a real-time 3D graphic environment. This type of integration facilitates the expression of design knowledge in the VE and enables the user to interactively solve and/or refine a spatial configuration problem. Consequently and in order to demonstrate the viability of our approach, we have implemented an intelligent configuration system in which the user can visually explore configurations, but his interaction with objects of the configuration problem triggers new cycles of constraint propagation from the modified configuration to produce a new compatible solution.

Publication metadata

Author(s): Calderon C, Cavazza M, Diaz D

Publication type: Article

Publication status: Published

Journal: Journal of Information Technology in Construction

Year: 2006

Volume: 11

Pages: 325-341

ISSN (print): 1403-6835

ISSN (electronic): 1400-6529

Publisher: International Council for Research and Innovation in Building and Construction


Notes: Special Issue: Architectural Informatics