![]() Photo-realism can only be obtained if the geometry of the building is represented by accurate methods and if texture or real world imagery is additionally mapped to the faces of the objects. They can be used to present architectural objects to the public and decision-makers. Three-dimensional photo-models are object-models with texture information taken from photographs. ![]() Consequently, the approach introduced in this study yields promising results for low-cost 3D city model production with the data at hand. The problems encountered throughout the study and approaches to solve them are presented here. The generated model is automatically textured and additional developments have been performed for 3D visualization of the model on the web. To prove the methodology, a 3D city model has been generated with semi-automatic methods at LoD2 (Level of Detail 2) of CityGML (City Geographic Markup Language) using the data of the study area over Cesme Town of Izmir Province, Turkey. The aim of this study is to propose a procedure for the production of 3D city models from existing aerial photogrammetric datasets without additional data acquisition efforts and/or costly manual editing. In this study, vector basemaps and large-format aerial images, which are regularly produced in accordance with the large scale map production regulations in Turkey, have been used to develop a workflow for semi-automatic 3D city model generation. The models can be produced using different data sources and methods. 3D city models are not only visual models, and they can also be used for thematic queries and analyzes with the help of semantic data. Running this will create a new database using settings configured in api/knexfile.3D city models have become crucial for better city management, and can be used for various purposes such as disaster management, navigation, solar potential computation and planning simulations. To initialize a database within the mysql container, run the command below from To run the environment again in the future, simple repeat steps 2 onwards.
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