SIG 3D – OGC International Workshop on Requirements for CityGML 3.0

Thursday, 20 June, 2013 - 14:00
Friday, 21 June, 2013 - 19:00

Request for Presentations on CityGML 3.0 development

The OGC CityGML SWG, the SIG 3D, and Technische Universität München will host a joint international workshop to gather requirements, ideas, suggestions, and positive as well as negative experience from CityGML users, data producers, software vendors, and scientists with CityGML 1.0 and 2.0 in order to guide the development of the next major version of CityGML. The workshop will take place on the 20th and 21st of June, 2013 in Munich, Germany.

In recent years many research groups, companies, and users intensively worked with CityGML and many possible extensions or modifications have been prototyped or proposed. In order to promote an open discussion this workshop will address a number of major issues and provide a forum for groups and individuals who can and want to contribute to future CityGML development. Participants are invited to communicate their experience in short presentations and to introduce their new concepts or modifications or share their experience gained from practical application of CityGML. We explicitly want to point out that no decisions on presented and discussed items will be taken at this stage of development.

These are the topics to be addressed in the two-day meeting:

THURSDAY, 20 June 2013

•  10:00-10:20 Welcome address from the organizers

10:20-12:30 Improved Support for Simulations and other Applications, e.g.

    - Coupling of CityGML with different types of simulations; time varying feature properties (spatial and thematic,      e.g. energy demand or production potential for a building along the course of the day / week / year)

    - Qualified attributes (metadata at individual attribute level like lineage, accuracy, unit of measure, date of acquisition etc.)      

•  13:30-17:00 LOD Concept of CityGML, e.g.

    - semantic and geometric LODs

     - definition of separate indoor LODs; floorplans

     - more / less / continuous LOD levels


On Thursday evening a social event will take place giving the participants the chance to enjoy Bavarian hospitality, food and beer at one of the famous Bavarian beer gardens or beer cellars (depending on the weather).

FRIDAY, 21 June 2013

•  09:00-10:30 Extension of CityGML by new Objects, e.g.

    - Support for other types of constructions like walls, fences etc.

    - Utility networks (e.g. UtilityNetworkADE)


•  11:00-15:00 Stronger Harmonisation with 2D Cadastre and Models, e.g.

    - Admissibility of 2D geometries, definition of LOD0


If you are a CityGML user, data producer, software vendor or a scientist working with or on CityGML, you are encouraged to  participate in the workshop. The organizers will contact a number of individuals and groups from which they know about their CityGML activities and ask them for presentations soon. However, if you would like to contribute a presentation, please send a short abstract (300 words) to the organizing committee consisting of the CityGML SWG chairs and the CityGML editors (please direct submissions to: kutzner [at] ).

The decision on the acceptance is based on the expected contribution to the issues named above. Due to the limited time, probably not all proposals might be considered. In case of too many submissions, another workshop will be planned. The accepted presentations will be listed on a frequently updated Wiki:

The event is sponsored by industry partners and the Chair of Geoinformatics at Technische Universit‰t M¸nchen. Hence, participation is free of charge including coffee breaks. Costs for travel and accomodation as well as the social event on Thursday will be at the participants own expense.

Organizing Committee:

Thomas H. Kolbe, Tatjana Kutzner

   Chair of Geoinformatics, Technische Universität München

Steve Smyth, Carsten Roensdorf, Claus Nagel

   CityGML Standard Working Group of the Open Geospatial Consortium

Gerhard Groeger, Karl-Heinz Haefele

   Modeling Group of SIG 3D of the Geodata Infrastructure Germany

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