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Automatic Generation of 3D Networks in CityGML via MUSCLE Model

This paper describes the usage of MUSCLE (Multidirectional Scanning for Line Extraction) Model for automatic generation of 3D networks in CityGML format (from raster floor plans). The algorithm of the model implements line thinning and simple neighborhood methods for vectorization. The model allows user to define specific criteria which are crucial for acquiring the vectorization process. The network models are topologically structured in CityGML format. A Java based software was developed for visualizing the network model generated and converted in CityGML. After the generation process, it is possible to perform 3D network analysis based on these models for evacuation purposes. We will highlight some future works.