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rchr avatar rchr commented on July 1, 2024

Generally it is not recommended to import a CityGML dataset defined in EPSG:4326 into the 3DCityDB. See this comment for further information.

In addition, you need to specify one coordinate reference system (CRS) per 3DCityDB instance. This CRS is used for the geometry columns of the database. That means, there is only one CRS per 3DCityDB instance. Hence, it is not recommended to load CityGML datasets defined in different CRS into one database.

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FxKu avatar FxKu commented on July 1, 2024

With the new v4.0 release it's possible to create multiple schemas of a 3DCityDB within one database under PostgreSQL, where each schema can have a different EPSG code. When using the CREATE_SCHEMA script a new database schema is created with the same CRS than the citydb schema. You then have to change the CRS using a database procedure change_schema_srid or more easily with the new Importer/Exporter. Still, we do not allow mixing CRSes inside one schema.

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