Leipzig in CityGML 3.0 – Pilot Project to Migrate the 3D City Model of Leipzig to CityGML 3.0

Version 3.0 of the international CityGML standard for semantic 3D urban and landscape models offers a number of significant innovations.
New concepts such as a detailed semantic 3D representation of the street space, the ability to depict both rapid changes in the properties of urban objects and slow urban transformation processes, as well as the newly introduced ‘space’ concept, open up new application potentials in connection with urban digital twins.
The webinar briefly introduces the new features compared to earlier CityGML versions and examines in detail the topic of migrating existing 3D city models to the new standard. Using the 3D city model of Leipzig as an example, a migration concept will be presented with the aim of creating a comprehensive, CityGML 3.0-based semantic 3D city model from existing 2D and 3D geobasis and geospecialist data, as well as from mobile mapping data (OpenDRIVE). The presentation will also demonstrate the derivation of visualisation models in the 3D streaming formats 3D Tiles and I3S, as well as data management and analysis in version 5 of the open-source software 3DCityDB.