Today we are excited to release 3DBAG version 2025.09.03. Major new features include two new output formats: 3D Tiles (for web visualisation) and IFC (for BIM users). There are also some smaller improvements, such as the new attribute b3_h_nok containing the main ridgeline elevation. And we made several improvements to the docs, like some pointers to our 3dbag-scripts for developers.
The tooling behind the scenes also received many improvements, allowing us to release new 3DBAG versions faster and more reliably in the future. A notable example is the introduction of a new global attribute schema, allowing us to define and enforce a consistent set of attributes across all 3DBAG outputs. We also use this global schema to automatically generate the attribute schema documentation, which is now guaranteed to be accurate and up-to-date without requiring manual edits.
3DBAG is generated using 100% open source software. For this release we used our building reconstruction software roofer version 1.0.0-beta-5. If you are interested in using the 3DBAG software or want to contribute to 3DBAG you are welcome to join our Zulip chat.
This release counts 107 715 47 BAG objects with a 3D building model and was funded by the 3DBAG innovation platform.
Special thanks to Amir Hakim for his work on the IFC export functionality.
Changed / Fixed
- Attribute
b3_kwaliteitsindicatorwas added to the CityJSON output - Fixed attribute
b3_kwaliteitsindicatorbeing always false - Removed attribute
b3_succes - Fixed extremely low and negative roof elevation values for some buildings
- Fixed in tile download map:
- Transparancy reduces after map move
- Map start point is now set to the center of the country.
- New attribute schema page in documentation
Added
- New output formats
- new attributes:
- Structured attribute schema. This is used during the 3DBAG generation process and to generate documentation.
- List with the missing BAG objects was added to the metadata section on the download page.
- Documentation: added references to 3dbag-scripts, added new export formats (IFC, 3D tiles).
Known issues
- 397 512 BAG features without 3D model (typically due to a lack of elevation data) are missing from the output.
b3_opp_dak_*,b3_opp_gronddo not account for holes in the polygon.- BAG date/time attributes in GPKG output are of the string type
The 3DBAG Team