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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...

NGA Plugweek

The Open Geospatial Consortium (OGC®) conducted a series of tests that examined the interoperability, suitability and performance of National System for Geospatial-Intelligence (NSG) Profiles provided by the National Geospatial-Intelligence Agency (NGA) of four OGC Standards, Web Map Service (WMS), Web Feature Service (WFS), Web Coverage Service (WCS), and Catalog Service (CAT).  In the study, vendors, users, and other interested parties conducted Technology Integration Experiments (TIEs) and mutually refined clients, services, interfaces and protocols in the context of a hands-on engineeri

European Location Framework

The goal of this project is to deliver the European Location Framework (ELF) required to provide up-to-date, authoritative, interoperable, cross-border, reference geo-information for use by the European public and private sectors.This versatile cloud-based and cascade-supporting architecture provides a platform of INSPIRE compliant geo-information, harmonised at a cross-border and pan-European level.

Styled Layer Descriptor

The OpenGIS® Styled Layer Descriptor (SLD) Profile of the OpenGIS® Web Map Service (WMS) Encoding Standard [http://www.opengeospatial.org/standards/wms] defines an encoding that extends the WMS standard to allow user-defined symbolization and coloring of geographic feature[http://www.opengeospatial.org/ogc/glossary/f] and coverage[http://www.opengeospatial.org/ogc/glossary/c] data. SLD addresses the need for users and software to be able to control the visual portrayal of the geospatial data. The ability to define styling rules requires a styling language that the client and server can bo...

Critical Infrastructure Protection Initiative, Phase 2

The U.S. Census Bureau sponsored the second phase of the Critical Infrastructure Protection Initiative, CIPI-2, an OGC pilot project. Census used the OGC's rapid-prototyping process to develop two prototype systems: an online system to update governmental unit boundary information for existing incorporated places, and an OpenGIS® Specification conformant server solution for Topologically Integrated Geographic Encoding and Referencing (TIGER®) data. The specifications implemented in the prototype were WMS, WFS and GML.