• (6th of January 2010): The OGC seeks input on the next revision of CityGML (see official OGC press release). The public is invited to submit change requests, proposed additions as well as suggestions for the future development of CityGML. The deadline for submissions is February 26, 2010. The public OGC online form for change and feature requests as well as guidance for the submission is available at http://www.opengeospatial.org/standards/cr. Please note that anyone (i.e., OGC members and non-members, organizations as well as individuals) can answer this call.
• (1st of December 2009): The Software section has been updated again: new versions of Aristoteles (1.3.01) and LandXPlorer (2009a) CityGML viewers are available. New, free viewers like FZKViewer 0.9, Ptolemy3D, CityVu and commercial viewers like BS Contact Geo 7.2, FME Data Inspector are referenced. References to a free CityGML Plugin for Sketchup and the Open Source BIM Server project were added.
• Work on the next versions of CityGML (1.1, 2.0) will be started by the reconstitution of the CityGML Standard Working Group on the next meeting of the Technical Committee of the Open Geospatial Consortium in Mountain View, California in December 2009. If you are an OGC member and want to contribute, please join the SWG!
• A nice new test dataset in LOD3 has been added to the dataset section.
• The Special Interest Group 3D (SIG 3D), who originally developed CityGML, has been working on a couple of thematic extensions for CityGML. Subsurface ADE, Bridge ADE, and Utility Networks ADE (under development) may be already included in the next version of CityGML (1.1). Some information on these ADEs and some more ADEs from third parties including the XML schema files can be found in the CityGML Wiki.
• (1st of February 2009): The Software sectionhas been updated: new versions of Aristoteles and LandXPlorer CityGML viewers are available. A new free and Open Source Java library, CityGML4j, and a 3D geo database have been added.
• New papers, presentations, and an e-learning module have been added to the Presentations section.
• (5th of December 2008): A new CityGML test dataset has been added. This dataset has an uncompressed size of 44 GB and is intended to be used for performance evaluations of visualization tools, GIS, and 3D geodatabases. Can you handle it?
• (29th of October 2008) The OGC has posted the official CityGML version 1.0.0 schemas to http://schemas.opengis.net/citygml/. These schemas shall be used for XML validation of CityGML 1.0.0 instance documents. For valid documents, please make sure to use the official XML namespace identifier and schemaLocations of the CityGML 1.0.0 modules. An overview of the XML namespaces and schemaLocations can be found in the CityGML Wiki.
• (1st of October 2008) A new CityGML Application Domain Extension for a web based 3D flood information system was developed within a Master Thesis at Stuttgart University of Applied Sciences.The project website provides further information and downloads (incl. the MSc thesis, the XML schema, and some sample data).
• (1st of September 2008): A new CityGML test dataset from the field of environmental simulation (noise immission mapping) has been made available! It employs the Noise Application Domain Extension explained in the CityGML specification document.
• (31th of August 2008): All CityGML test datasets are now also available in version 1.0.0 and 0.4.0!
• The XML schema documents and UML diagrams for CityGML 1.0.0 can be downloaded from the resources section.
• (20th of August 2008): The members of the Open Geospatial Consortium, Inc. (OGC) have adopted version 1.0.0 of CityGML as an official OGC Standard (official OGC press release). Over the last 9 months the CityGML SWG has done a lot of work on finally bringing CityGML to an adopted international standard. Many thanks go to the members of the CityGML SWG, to the members of the SIG 3D, and to the whole CityGML community for the support and effort in making this happen.
  The final CityGML version 1.0.0 Standard document can be obtained from the CityGML section of the OGC web presence (direct document link). The CityGML XML Schema definition files will be published shortly by the OGC.
• (24th of June 2008): The presentation slides from the OGC Interoperability Day on the 3rd of June 2008 are available in the corresponding resources section.
• (19th of May 2008): The OGC has announced the next OGC Interoperability Days to be held on Tuesday and Wednesday, June 3 and 4, 2008, in Potsdam, Germany (official OGC press release). CityGML will be an agenda highlight for the Technical Interoperability Day on Tuesday. The SIG 3D has been granted a considerable time slot for presentations and real world examples on CityGML. The OGC Interoperability Days are open both for OGC members and non OGC members. On both days, attendance is free and attendees will have opportunities to attend company and project presentations. Detailed program and registration information are available at www.opengeospatial.org/event/080603techinterop and www.opengeospatial.org/event/080604interop. Please note, that registration is free, but attendees must register separately for each day. The event will be held at GFZ Potsdam, Telegrafenberg 326, 14473 Potsdam, www.gfz-potsdam.de

Created and maintained by Thomas H. Kolbe
Last update: 2010-02-01