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OpenGIS Geography Markup Language (GML) Implementation

OpenGIS Geography Markup Language (GML) Implementation 2025

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The Geography Markup Language (GML) version 2.1.1 is an XML-based encoding standard for the transport and storage of geographic information, encompassing both spatial and non-spatial properties of geographic features. This document outlines the XML Schema syntax, mechanisms, and conventions necessary for defining geospatial application schemas and objects, facilitating interoperability among various applications. It includes guidelines for encoding geographic features, application schemas, and examples illustrating the construction of compliant GML structures. The specification aims to enhance data sharing and integration across different systems while adhering to standards set by the OpenGIS Consortium.

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What is the difference between GML and KML?

GML and KML Whereas GML is a language to encode geographic content for any application, by describing a spectrum of application objects and their properties (e.g. bridges, roads, buoys, vehicles etc.), KML is a language for the visualization of geographic information tailored for Google Earth.

What is the full meaning of GML?

The Geography Markup Language (GML) is an XML grammar for expressing geographical features. GML serves as a modeling language for geographic systems as well as an open interchange format for geographic transactions on the Internet.

What is GML in GIS?

GML or Geography Markup Language is an XML based encoding standard for geographic information developed by the OpenGIS Consortium (OGC). It is current status is an RFC under review within the OpenGIS Consortium.

Is the Geography Markup Language GML based on XML?

Geography Markup Language (GML) is an XML grammar for expressing geographical Features. GML serves as a modelling language for geographic systems, as well as an open interchange format for geographic transactions on the Internet.

Which organization originally developed GML?

GML development was started in 1999 under the auspices of the OpenGIS Consortium and its specification was released in February of 2001. The purpose of this page is to explain GML version 1.0 as given in OGC Document Number 00-029 (May 12, 2000).

What is the key difference between XML and JSON?

JSON is independent of any programming language and is a common API output in a wide variety of applications. XML is a markup language that provides rules to define any data. It uses tags to differentiate between data attributes and the actual data.

What is the difference between XML and GML?

The main difference is that GML is a specialized subset of XML tailored for geographic information, providing specific schemas and elements for describing features, geometries, and spatial relationships, while XML is a more general-purpose language that can be used to represent any kind of structured data.

What is the meaning of GML file?

Also known as Geographic Markup Language and GML/XML. GML is a text-based, XML format that can represent vector and attribute data.

OpenGIS Geography Markup Language (GML) Implementation 2025

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