ISPRS-Annals ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences ISPRS-Annals ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci. 2194-9050 Copernicus Publications Göttingen, Germany 10.5194/isprs-annals-IV-2-W1-3-2016 PROPOSAL FOR A NEW LOD AND MULTI-REPRESENTATION CONCEPT FOR CITYGML Löwner M.-O. 1 Gröger G. 2 Benner J. 3 Biljecki F. 4 Nagel C. 5 Institute for Geodesy and Photogrammetry, Technische Universität Braunschweig, Braunschweig, Germany CPA Software GmbH, Auf dem Seidenberg 3a, 53721 Siegburg, Germany Karlsruhe Institute of Technology, Institute for Applied Computer Science, Karlsruhe, Germany 3D Geoinformation, Delft University of Technology, Delft, the Netherlands virtualcitySYSTEMS GmbH, Tauentzienstrasse 7b/c, 10789 Berlin, Germany 05 10 2016 IV-2/W1 3 12 This article is available from https://isprs-annals.copernicus.org/articles/isprs-annals-IV-2-W1-3-2016.html The full text article is available as a PDF file from https://isprs-annals.copernicus.org/articles/isprs-annals-IV-2-W1-3-2016.pdf

The Open Geospatial Consortium (OGC) <i>CityGML</i> standard offers a Level of Detail (LoD) concept that enables the representation of CityGML features from a very detailed to a less detailed description. Due to a rising application variety, the current LoD concept seems to be too inflexible. Here, we present a multi representation concept (MRC) that enables a user-defined definition of LoDs. Because CityGML is an international standard, official profiles of the MRC are proposed. However, encoding of the defined profiles reveals many problems including mapping the conceptual model to the normative encoding, missing technologies and so on. Therefore, we propose to use the MRC as a meta model for the further definition of an LoD concept for CityGML 3.0.