Geoscience Reference
In-Depth Information
A 3D City Model with Dynamic Behaviour
Based on Geospatial Managed Objects
E. Kjems and J. Koláˇ
Abstract
One of the major development efforts within the GI Science domain are
pointing at real time information coming from geographic referenced features in
general. At the same time 3D City models are mostly justified as being objects for
visualization purposes rather than constituting the foundation of a geographic data rep-
resentation of the world. The combination of 3D city models and real time information
based systems though can provide a whole new setup for data fusion within an urban
environment and provide time critical information preserving our limited resources in
the most sustainable way. Using 3D models with consistent object definitions give us
the possibility to avoid troublesome abstractions of reality, and design even complex
urban systems fusing information from various sources of data. These systems are diffi-
cult to design with the traditional software development approach based on major soft-
ware packages and traditional data exchange. The data stream is varying from domain
to domain and from system to system why it is almost impossible to design an unify-
ing system taking care of all thinkable instances now and in the future within one con-
straint software design complex. On several occasions we have been advocating for a
new and advanced formulation of real world features using the concept of Geospatial
Managed Objects (GMO). This chapter presents the outcome of the InfraWorld project,
a 4 million Euro project financed primarily by the Norwegian Research Council where
the concept of GMO's have been applied in various situations on various running plat-
forms of an urban system. The paper will be focusing on user experiences and inter-
faces rather then core technical and developmental issues. The project was primarily
focusing on prototyping rather than realistic implementations.
Keywords
Geospatial managed objects • InfraWorld • Interface • Dynamic •
Virtual machine • Data fusion • Geoinfomation
