Comments (2)
clausnagel
commented on July 2, 2024
1
The importer does neither check nor correct invalid geometry but just imports it as-is. So, the geometry issues come from your input data. There are some tools for validating CityGML geometries. I can recommend CityDoctor (open source) and FME (commercial). You could use these tools to validate your input data before importing it.
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gioagu
commented on July 2, 2024
Hi!
Another thing to consider:
PostGIS 3D functions (e.g. ST_Volume) are a pick "picky" when it comes to the planarity test with polygons that, for example, make up a PolyhedralSurface.
Your geometries could be indeed correct (you can test them using the tools that Claus suggested), but sometimes, if they are not triangulated and due to - I assume - coordinate conversion to PostGIS' binary wkt, you may still end up with the error you show. This has happened to me a number of times computing volume as you are doing.
Unluckily, to my knowledge, there is no way at the moment to set a tolerance threshold in ST_Volume to overcome this "issue".
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Related Issues (20)
- Automatic BBox calculation for tiling HOT 1
- VIS Export and KML Export HOT 1
- URL for web map HOT 1
- Global appearances are ignored in CityJSON exports
- URL and cityobjectsJsonUrl for the JSON files HOT 5
- Date error when exporting HOT 2
- importer for surfaces with inner rings creates invalid POLYHEDRALSURFACE HOT 2
- Installation issue on mac HOT 2
- NoClassDefFoundError: org/citydb/gui/plugin/view/ViewExtension when running the Importer/Exporter CLI HOT 4
- 3DCityDB-Importer-Exporter-4.3.0-Setup.jar does not install core, only plugins HOT 6
- Problem with citygml file validation HOT 3
- When using the CLI import options, can I specify that it should update? HOT 1
- Can't export to tiled CityGML files HOT 8
- 3d CityDatabase HOT 12
- Thank you! @clausnagel
- Bug in About link
- Importer/Exporter 5.4.2: ADE manager tab gone? HOT 3
- ERROR: geometry requires more points HOT 2
- GLTF Export -> All Buldings in one gltf file? HOT 1
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