CityGML is an open data model and XML-based format for the storage and exchange of virtual 3D city models. It is an application schema for the Geography Markup Language version 3.1.1 (GML3), the extendible international standard for spatial data exchange issued by the Open Geospatial Consortium (OGC) and the ISO TC211. The aim of the development of CityGML is to reach a common definition of the basic entities, attributes, and relations of a 3D city model. This is especially important with respect to the cost-effective sustainable maintenance of 3D city models, allowing the reuse of the same data in different application fields.
For more information on CityGML including developer resources and information on in-progress work, please visit http://www.citygml.org/. For the official OGC member approved versions of the standard, see the Download information below.
|Version||Document Title (click to download)||Document #||Type|
|2.0||OGC City Geography Markup Language (CityGML) Encoding Standard||12-019||IS|
|1.0||OpenGIS® City Geography Markup Language (CityGML) Encoding Standard||08-007r1||IS|
Video: 100% CityGML day offered as an introduction to CityGML to the Netherlands 3D Pilot participants (14 March, 2011).
Publications on the Netherlands 3D Pilot (some in English, some in Dutch)
Webinar: How the OGC’s CityGML Standard Supports 3D Innovation for Business and Government -- Thursday, January 12, 2012