3D Geoinformation – Then and Now
Keywords: 3D Geoinformation, Spatial Data Structures, Spatial Data Modelling, CityGML, LADM, 3D Visualization
Abstract. This paper discusses the trends of 3D geoinformation from past (1990s) to present. It highlights the initial 3D GIS research frameworks in the aspect of 3D spatial data acquisition, processing, databases, visualization, standards, and exchange formats. Several important R&D stages are described as well as CityGML, CityJSON, INTERLIS, and LADM standards. The paper also discusses some challenges faced by the 3D GIS users and community. Finally, the paper concludes the 3D GIS ability for supporting various applications.