Reference study of CityGML software support
The GeoBIM benchmark 2019—Part II
Francesca Noardo (TU Delft - Architecture and the Built Environment)
Ken Arroyo Ohori (TU Delft - Architecture and the Built Environment)
Filip Biljecki (National University of Singapore)
Claire Ellul (University College London)
Lars Harrie (Lund University)
Thomas Krijnen (TU Delft - Architecture and the Built Environment)
Jordi van Liempt (TU Delft - Architecture and the Built Environment)
Stelios Vitalis (TU Delft - Architecture and the Built Environment)
Jantien Stoter (TU Delft - Architecture and the Built Environment)
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Abstract
OGC CityGML is an open standard for 3D city models intended to foster interoperability and support various applications. However, through our practical experience and discussions with practitioners, we have noticed several problems related to the implementation of the standard and the use of standardized data. Nevertheless, a systematic investigation of these issues has never been carried out, and there is thus insufficient evidence for tackling the problems. The GeoBIM benchmark project is aimed at finding such evidence by involving external volunteers, reporting on various aspects of the behavior of tools (geometry, semantics, georeferencing, functionalities), analyzed and described in this article. This study explicitly pointed out the critical points embedded in the format as an evidence base for future development. A companion article (Part I) describes the results of the benchmark related to IFC, the counterpart of CityGML within building information modeling.
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