ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume IV-2/W1
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., IV-2/W1, 39–45, 2016
https://doi.org/10.5194/isprs-annals-IV-2-W1-39-2016
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., IV-2/W1, 39–45, 2016
https://doi.org/10.5194/isprs-annals-IV-2-W1-39-2016

  05 Oct 2016

05 Oct 2016

TOWARDS AUTOMATIC PROCESSING OF VIRTUAL CITY MODELS FOR SIMULATIONS

R. Piepereit1, A. Schilling3, N. Alam2, M. Wewetzer1, M. Pries1, and V. Coors2 R. Piepereit et al.
  • 1Beuth Hochschule für Technik Berlin - University of Applied Sciences, Department II, Luxemburger Straße 10, 13353 Berlin, Germany
  • 2HFT Stuttgart - University of Applied Sciences, Faculty C, Schellingstraße 24, 70174 Stuttgart, Germany
  • 3virtualcitySYSTEMS GmbH, Tauentzienstraße 7b/c, 10789 Berlin, Germany

Keywords: 3D City models processing, CityGML, STEP, B-splines, Coons, Quality

Abstract. Especially in the field of numerical simulations, such as flow and acoustic simulations, the interest in using virtual 3D models to optimize urban systems is increasing. The few instances in which simulations were already carried out in practice have been associated with an extremely high manual and therefore uneconomical effort for the processing of models. Using different ways of capturing models in Geographic Information System (GIS) and Computer Aided Engineering (CAE), increases the already very high complexity of the processing. To obtain virtual 3D models suitable for simulation, we developed a tool for automatic processing with the goal to establish ties between the world of GIS and CAE. In this paper we introduce a way to use Coons surfaces for the automatic processing of building models in LoD2, and investigate ways to simplify LoD3 models in order to reduce unnecessary information for a numerical simulation.