Expeditious Modelling of Virtual Urban Environments with Geospatial L-systems
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Date
2006
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
This paper presents Geospatial L-systems, a new extension of L-systems that incorporates geospatial awareness, and shows an application of this new tool in the expeditious modelling of urban environments, integrated with a modelling system with interoperable access to data sources. L-systems have been used in Computer Graphics for the modelling of plants, and in a few experiments to model urban environments. However, the lack of geospatial awareness is a limitation and in spite of some developments like open l-systems introduced the ability to communicate with the environment, there was a need for more flexibility. A new modelling system, named XL3D, generates virtual urban environments automatically from a XL3D document with a modelling specification. This modelling system accesses data sources in a interoperable way and the modelling processes are based on Lsystems. The integration of geospatial L-systems with the XL3D modelling system has increased its potential for automation and improved the potential to generate virtual urban environments with a higher level of detail and visual fidelity, with a lower level of complexity of the modelling processes. These facts are shown in a case study where a virtual urban environment taken from an area in the Porto downtown is generated by this solution.
Description
@inproceedings{:10.2312/LocalChapterEvents/siacg/siacg06/109-119,
booktitle = {SIACG 2006: Ibero-American Symposium in Computer Graphics},
editor = {Pere Brunet and Nuno Correia and Gladimir Baranoski},
title = {{Expeditious Modelling of Virtual Urban Environments with Geospatial L-systems}},
author = {Coelho, António and Bessa, Maximino and Sousa, A. Augusto de and Ferreira, F. Nunes},
year = {2006},
publisher = {The Eurographics Association},
ISBN = {3-905673-60-6},
DOI = {/10.2312/LocalChapterEvents/siacg/siacg06/109-119}
}