Expeditious modelling of virtual urban environments with geospatial L-systems

• Type: Article in International Scientific Journal
• Date: 2007

Authors

A. Coelho (Author) FEUP; M. Bessa (Author) Other; A. Augusto Sousa (Author) FEUP; F. Nunes Ferreira (Author) Other

Journal

Title: Computer Graphics Forum

Vol. 26 No. 4

Pages: 769-782

ISSN: 0167-7055

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 12 Citations

ISI Web of Science

Scopus - 16 Citations

COMPENDEX

INSPEC

Scientific classification

FOS: Natural sciences > Computer and information sciences

CORDIS: Technological sciences > Technology > Graphic techniques > Computer graphics ; Physical sciences > Computer science > 3 D modeling

Other information

Authenticus ID: P-004-CV4

DOI: 10.1111/j.1467-8659.2007.01032.x

Abstract (EN): L-systems have been used in Computer Graphics, namely for modelling plants, as well as 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, that introduced the ability to communicate with the environment, there was a need for more flexibility. This paper presents Geospatial L-systems, a new extension of L-systems that incorporates geospatial awareness, and shows an application in the area of expeditious modelling of urban environments. A modelling system, named XL3D, generates virtual urban environments automatically from a XML based document that contains a modelling specification and accesses data sources in an interoperable way. The integration of geospatial L-systems in this modelling system has increased the potential for automation and 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 14