Hagedorn, Benjamin; Döllner, Jürgen
15th International Symposium on Advances in Geographic Information Systems (ACM GIS)
This paper presents an approach to visualize and analyze 3D building information models within virtual 3D city models. Building information models (BIMs) formalize and represent detailed information related to the lifecycle of buildings, e.g., information about composition, facilities, equipment, usage, maintenance, and workflows such as rescue scenarios. Complementary, virtual 3D city models represent objects and phenomena of urban areas, typically at a lower level of information detail, virtual 3D city models as a general framework and platform for spatial data allow us to seamlessly combine GIS and BIM data. In our approach, BIM data and 3D geodata, both provided by possibly distributed, heterogeneous web services, are efficiently integrated by the underlying real-time 3D geovisualization system. To facilitate insights into complex spatial scenarios, two configurable BIM-specific visualization techniques have been developed, which map BIM data onto 3D building graphics variables respectively geometrically distort 3D building representations. The visualization functionality can itself be accessed as a specialized web 3D perspective view service. We demonstrate our approach by a fire and rescue scenario for a part of a 3D campus model.