Managing versions of 3D city models

We proposed a new CityGML ADE to manage different versions of a city model contained in a CityGML file. This means that, in addition to be able to store the models of a city corresponding to different dates, the CityGML standard can also handle in a single file multiple versions of this city model. For example, an urbanisation project can have competing propositions and it may be interesting to store each of them in a single file, while allowing the user to switch between them in a visualisation tool. 3D-Use also supports this CityGML ADE.

Two different versions of a building that can be stored in a single CityGML file. This allows, for example, the comparison of the corresponding skylines thanks to the method measuring urban visibility

Publications

Chaturvedi, K., Smyth, C. S., Gesquière, G., Kutzner, T., & Kolbe, T. H. (2017). Managing versions and history within semantic 3D city models for the next generation of CityGML. In Advances in 3D Geoinformation (pp. 191-206). Springer International Publishing.

Samuel J., Servigne S., Gesquière G. Representation of Concurrent Points of View of Urban Changes for City Models. Journal of Geographical Systems, Springer Verlag, 2020, 22, 25 p. ⟨10.1007/s10109-020-00319-1⟩. ⟨hal-02454953⟩