OGC CityGML Hackathon

If you’re a developer working with urban 3D data, you won’t want to miss this event! Organised by the Open Geospatial Consortium (OGC), you are invited to the OGC CityGML Hackathon in London.

Hosted by us on 11 & 12 June 2019 at the Geovation Hub in London, we will be providing a wealth of 3D city model source data to be transformed into CityGML 3.0. This will include 3D data created for the CityVerve project in Manchester.

An OGC Hackathon is a collaborative and inclusive event driven by innovative and rapid programming with minimum process and organisation constraints to support the development of new applications and open standards. Drawing on the outcomes of the OGC’s CityGML Standards Working Group, the hackathon will allow participants detailed insight about the current plans for CityGML. Please note the hackathon is open to anyone – OGC membership is not a requirement!


First issued in 2008, CityGML is a well-established and implemented OGC standard. In this hackathon, participants will experiment with and validate the current draft conceptual model for the upcoming version 3.0 of CityGML. This can either be done with source data that participants bring to hackathon themselves or with source data made available by Ordnance Survey and other data sponsors such as CityGML 2 files, mesh models and Building Information Models. Ideally, participants should have some knowledge of CityGML / OGC Geography Markup Language (GML), 3D modelling or city modelling.

There will be opportunity for joint discussion with all participants on the goals and objectives of the event as well as final briefing of findings and opinions of the participants. However, the majority of the time will be spent in collaboration between participants in active coding and working with datasets.


We have been involved in the development of CityGML since 2005 and, as a Strategic Member of OGC, we are hoping to increase the use of open 3D standards in the smart cities field. The development of CityGML 3.0 has reached a key stage at which a comprehensive draft model needs to be tested against pragmatic requirements to create CityGML datasets. The outcomes of the Hackathon are expected to influence how the upcoming CityGML 3.0 standard will be structured and published.

Registrations close 4 June. Register online at: citygmlhack.eventbrite.com.
For more information on the Hackathon including venue information, registration requirements, and expected skill sets, visit the OGC CityGML Hackathon event page.


About OGC

The OGC is an international consortium of more than 525 companies, government agencies, research organisations and universities participating in a consensus process to develop publicly-available geospatial standards. OGC standards support interoperable solutions that ‘geo-enable’ the Web, wireless and location-based services, and mainstream IT. OGC standards empower technology developers to make geospatial information and services accessible and useful within any application that needs to be geospatially enabled. Visit the OGC website at www.opengeospatial.org.

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