OGC Implementation Specifications

CityGML is an open data model and XML-based format for the storage and exchange of virtual 3D city models. It is an application schema for the Geography Markup Language version 3.1.1 (GML3), the extendible international standard for spatial data exchange issued by the Open Geospatial Consortium (OGC) and the ISO TC211. The aim of the development of CityGML is to reach a common definition of the basic entities, attributes, and relations of a 3D city model. This is especially important with respect to the cost-effective sustainable maintenance of 3D city models, allowing the reuse of the same...
Change Requests are submitted by anyone for any existing or proposed OpenGIS® Standard. The process for public submission of Change Request is rather simple:
  1. Download Change Request Template and Instructions.
  2. Complete the form according to the above instructions.
  3. Submit the completed form (if you are providing attachments, please ZIP, or tar your files) via email to: <
Syndicate content