CityGML model generation using parametric interpolations

Abstract

With an upsurge in the energy demand throughout the globe, efficient energy simulations and smart energy management solutions are imperative. Often a lack of substantial 3D geometrical data restricts simulation scientists and urban planners to analyse energy demand patterns on a city scale. Therefore, in this paper, the authors describe an open-source CityGML Building Interpolation Tool (CityBIT) for the creation of user-defined and interpolated CityGML LoD2 building models for planned and/or existing buildings. CityBIT can be used to generate CityGML models with different roof types, orientations and elevations. A brief explanation of the tool’s functionalities and the methodologies adapted to develop the tool are explained in this paper. CityBIT aims to facilitate CityGML geometric model development focusing on urban-energy performance simulations.