Authors:
Tiago Martins
1
;
Pedro Brandão Silva
1
;
António Coelho
2
and
A. Augusto Sousa
2
Affiliations:
1
Universidade do Porto, Portugal
;
2
Universidade do Porto and UPTEC - PINC, Portugal
Keyword(s):
Urban Ontology, Interactive Collaborative Virtual Environment, Procedural Modeling, Virtual Reality.
Related
Ontology
Subjects/Areas/Topics:
Augmented, Mixed and Virtual Environments
;
Computer Vision, Visualization and Computer Graphics
;
Integration and Interoperation Between 3D Documents and Web/Multimedia Technologies, Including the Semantic Web
;
Interactive Environments
Abstract:
The municipal planning and management tasks are generally performed based on text documents or through digital maps provided by geographic information systems (GIS). However, most municipal GIS follow different data models, leading to interoperability problems when there is a need to combine data from different sources. Furthermore, most of the time these tasks are performed in a collaborative way between the municipal technicians, emerging some difficulties in decision making due to the three-dimensional nature of urban space. Thus, this paper describes a methodology which can integrate multiple sources of real data from diverse municipal GIS, in a unified data model based on the CityGML specification. This model is mapped onto an urban ontology oriented for procedural modeling, which, in turn, produces the three-dimensional models of the urban environments. The system developed operates in a client-server approach, where the server is responsible for mapping the urban information t
o the unified data model and the client represents the procedural modeling technology that generates the urban environment in three-dimensional format, allowing users to interact and amplify the existing urban information.
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