Digital twin of Kleczkow

The Kleczków model was developed from scratch. It was constructed using a set of publicly available spatial and geodetic data, including: Digital Elevation Model (DEM), Digital Surface Model (DSM), Orthophotomap (ORTO), Topographic Object Database (BDOT10k), cadastral data (EGiB). This data was integrated and processed to reconstruct 3D building solids in accordance with the CityGML LoD2 specification. Combining all sources enabled the creation of topologically correct 3D models with assigned semantic attributes. To ensure the high geometric and semantic quality of the model, the CityDoctor tool was used to validate CityGML models. The verification process included the identification of topological errors and checking compliance with the CityGML schema.