CityGML Extension for BIM/IFC Information

other
CityGML’s concept of Application Domain Extensions (ADE) offers a well-defined extension mechanism to augment the CityGML data model with application specific data. These application specific extensions are formally specified in their own ADE XML schema file and can comprise additional property elements for existing CityGML objects as well as newly defined feature types. ADEs are associated with their own XML namespace which allows for integrating ADE data into CityGML instance documents.
In this presentation we introduce the latest ADE that integrates Building Information Model data (BIM) based on the open standard Industry Foundation Classes (IFC) into CityGML. We also describe some methods to translate IFC to CityGML and specifically the method that is used by the open source BIMserver (bimserver.org).
By extending CityGML with this BIM/IFC specific ADE we want to add the building specific details that are needed by planners in the Architectural, Engineering and Construction industry (AEC) to CityGML. This presentation describes some example use-cases where this is appreciated.
We finish our presentation by laying out some of the ideas and plans for the future use of CityGML (including the BIM/IFC specific ADE) in the AEC industry. This final part of the presentation focuses on the integration between surface information (build environment) and subsurface (geological) information.
TNO Identifier
841095
Publisher
TNO
Source title
FOSS4G Conference Sydney, Australian 2009, 20-23 October 2009
Pages
1-47