INSPIRE Knowledge Base


Special Interest Group 3D
Mission and Objectives: 
The core mission of the SIG 3D is the development of open specifications, services, solutions and the realisation of pilot projects for interoperable processing, visualization and exchange of 3D spatial data.
Formal Mandate: 
Regional Government
Non profit umbrella organization, public and private association
Workshops, working groups, technical specifications development ( e.g. CityGML, Web Services ), projects.
Municipalities (e.g. Berlin, Hamburg, Cologne, Dusseldorf, Bremen, Stuttgart), Governmental Organizations (e.g. German BKG, GDI DE, British Ordnance Survey), Public R&D (e.g. Universities of Bonn, Berlin, Potsdam, Hanover, Brunswick, Karlsruhe Institute of Technology, Munich), Companies (e.g. Bentley Systems, con terra, ESRI, Graphicomp, Rheinmetall, Snowflake, t systems)

Which role(s) do you foresee for the SDIC in INSPIRE development

  • submit reference material as input to the Drafting Teams
  • yes
  • allocate experts to Drafting Teams
  • yes
  • participate in the review process
  • yes
  • contribute to cost/benefit analysis of the draft Implementing Rules
  • yes
  • implement pilot projects to test/revise/develop the draft Implementing Rules
  • yes
  • collect and describe user requirements related to Environmental policies
  • yes
  • register a project to test/revise/develop the draft Implementing Rules
  • yes
  • be kept informed
  • yes
    Geographic Domain
    City Models for the Netherlands, Parts of Germany
    Societal Sector
    Regional/local government, public works, research, education
    Specific Expertise
    Previous Experience relevant for INSPIRE development
    The SIG3D is a major player in the OGC standardization process for an interoperable semantic model for 3D buildings and landscape. For this purpose CityGML was developed by the SIG3D and standardized by the OGC (current version 1.0.0). The SIG3D still contributes to further developments and extensions of CityGML like the CityGML Noise ADE. CityGML is based entirely on OGC and ISO TC 211 standards (GML, ...), and has been successfully tested in OWS 4 testbed. The CityGML standard is currently supported as an exchange format for semantic building models in various software systems, especially GIS and CAD systems. Various large scale 3D city models (including landscape and buildings) were generated by public and private members of the SIG3D (e.g. North Rhine-Westphalia, Berlin) on the basis of CityGML. These city models are completely database driven and the exchange of spatial data is realized thru OGC web services. The SIG3D was also involved in the testing process of INSPIRE Annex I specifications, mandated by the German SDI GDI-DE