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Document http://schemas.opengis.net/gml/3.1.1/base/referenceSystems.xsd

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Document http://schemas.opengis.net/gml/3.1.1/base/referenceSystems.xsd

Version	3.1.1
Language	en
Target Namespace	http://www.opengis.net/gml
Declared Namespaces	xmlns=http://www.w3.org/2001/XMLSchema xmlns:gml=http://www.opengis.net/gml
Default Namespace Rules	Global declarations belong to the declared targetNamespace Local attribute declarations belong to no namespace Local element declarations belong to the declared targetNamespace

Elements

_CRS
_ReferenceSystem
boundingBox
boundingPolygon
crsRef
referenceSystemRef
remarks
scope
srsID
srsName
temporalExtent
validArea
version
verticalExtent

Complex Types

AbstractReferenceSystemBaseType*
AbstractReferenceSystemType*
CRSRefType*
ExtentType*
IdentifierType*
ReferenceSystemRefType*

Port Types

URL Inclusion Tree

http://schemas.opengis.net/gml/3.1.1/base/referenceSystems.xsd

Documentation

GML Subset schema for gml:_Feature,gml:_FeatureCollection,gml:FeatureCollection,gml:_Coverage,gml:RectifiedGridCoverage,gml:MeasureOrNullListType,gml:Point,gml:LineString,gml:Polygon,gml:LinearRing,gml:Dictionary,gml:_Definition,gml:dictionaryEntry,gml:Dictionary,gml:BaseUnit,gml:ConventionalUnit,gml:DerivedUnit,gml:ProjectedCRS,gml:Conversion,gml:GeographicCRS,gml:centerLineOf,gml:extentOf,gml:QuantityList,gml:GeometryPropertyType,gml:PolygonPropertyType,gml:defaultStyle,gml:MultiSurface,gml:Style,gml:_MetaData, written by gmlSubset.xslt.

fragmentTransformations.xsd How to encode Transformation and ConcatenatedOperation definitions for WCTS image profile. Primary editor: Arliss Whiteside. Last updated 2005-09-12 Copyright (c) Open Geospatial consortium (2005)

			Dictionary schema for GML 3.1.1
			Components to support the lists of definitions.
    Copyright (c) 2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

GML base schema for GML 3
		Components to support the GML encoding model.
		The abstract Schematron rules can be used by any schema that includes gmlBase.
		Copyright (c) 2001-2005 OGC, All Rights Reserved. For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

    Generic simpleContent components for use in GML
    Copyright (c) 2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

Extends the units.xsd and basicTypes.xsd schemas with types for recording measures using specific types of units, especially the measures and units needed for coordinate reference systems and coordinate operations. The specific unit types encoded are length, angle, scale factor, time, area, volume, speed, and grid length. This schema allows angle values to be recorded as single numbers or in degree-minute-second format.
		Copyright (c) 2002-2005 OGC, All Rights Reserved. For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr
		Parts of this schema are based on Subclause 6.5.7 of ISO/CD 19103 Geographic information - Conceptual schema language, on Subclause A.5.2.2.3 of ISO/CD 19118 Geographic information - Encoding, and on Subclause 4.7 of OpenGIS Recommendation Paper OGC 02-007r4 Units of Measure Use and Definition Recommendations.

Builds on gmlBase.xsd to encode units of measure (or uom), including definitions of units of measure and dictionaries of such definitions. GML 3.0 candidate schema, primary editor: Arliss Whiteside. Last updated 2005-06-22.
	Copyright (c) 2002-2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr
	Parts of this schema are based on Subclause 6.5.7 of ISO/CD 19103 Geographic information - Conceptual schema language, on Subclause A.5.2.2.3 of ISO/CD 19118 Geographic information - Encoding, and on most of OpenGIS Recommendation Paper OGC 02-007r4 Units of Measure Use and Definition Recommendations.

Copyright (c) 2001-2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

Top level GML schema
    Copyright (c) 2002-2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

Basic support for tracking moving objects and objects with changing state.
    Copyright (c) 2002-2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

GML Feature schema.
    Copyright (c) 2001-2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

Copyright (c) 2001-2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

The temporal schema for GML 3.1 provides constructs for handling time-varying spatial data.
    This schema reflects a partial implementation of the model described in ISO 19108:2002.
    Copyright (c) 2002-2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

This schema defines "direction" element and type.
    Copyright (c) 2002-2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

	Copyright (c) 2002-2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

Copyright (c) 2001-2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

Copyright (c) 2001-2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

Copyright (c) 2001-2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

GML Coverage schema.
        Copyright (c) 2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

GML conformant schema for Values in which the
		    * scalar Value types and lists have their values recorded in simpleContent elements
		    * complex Value types are built recursively
    Copyright (c) 2002-2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

Grid geometries
    A subset of implicit geometries
    Designed for use with GML Coverage schema, but maybe useful elsewhere as well.
    Copyright (c) 2002-2005 OGC, All Rights Reserved.
	For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr

How to encode coordinate reference system definitions. Builds on referenceSystems.xsd to encode the data needed to define coordinate reference systems, including the specific subtypes of coordinate reference systems.
		Copyright (c) 2002-2005 OGC, All Rights Reserved. For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr
		This schema encodes the Coordinate Reference System (SC_) package of the extended UML Model for OGC Abstract Specification Topic 2: Spatial Referencing by Coordinates, with the exception of the abstract "SC_CRS" class. The "SC_CRS" class is encoded in referenceSystems.xsd, to eliminate the (circular) references from coordinateOperations.xsd to coordinateReferenceSystems.xsd. That UML model is adapted from ISO 19111 - Spatial referencing by coordinates, as described in Annex C of Topic 2.
		Caution: The CRS package in GML 3.1 and GML 3.1.1 is preliminary, and is expected to undergo some modifications that are not backward compatible during the development of GML 3.2 (ISO 19136). The GML 3.2 package will implement the model described in the revised version of ISO 19111.

How to encode coordinate system definitions. Builds on referenceSystems.xsd to encode the data needed to define coordinate systems, including the specific subtypes of coordinate systems.
		Copyright (c) 2002-2005 OGC, All Rights Reserved. For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr
		This schema encodes the Coordinate System (CS_) package of the extended UML Model for OGC Abstract Specification Topic 2: Spatial Referencing by Coordinates. That UML model is adapted from ISO 19111 - Spatial referencing by coordinates, as described in Annex C of Topic 2.
		Caution: The CRS package in GML 3.1 and GML 3.1.1 is preliminary, and is expected to undergo some modifications that are not backward compatible during the development of GML 3.2 (ISO 19136). The GML 3.2 package will implement the model described in the revised version of ISO 19111.

How to encode reference system definitions. Builds on several other parts of GML 3 to encode the data needed to define reference systems.
		Copyright (c) 2002-2005 OGC, All Rights Reserved. For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr
		This schema encodes the Reference System (RS_) package of the extended UML Model for OGC Abstract Specification Topic 2: Spatial Referencing by Coordinates. That UML model is adapted from ISO 19111 - Spatial referencing by coordinates, as described in Annex C of Topic 2. The SC_CRS class is also encoded here, to eliminate the (circular) references from coordinateOperations.xsd to coordinateReferenceSystems.xsd. The RS_SpatialReferenceSystemUsingGeographicIdentifier class is not encoded, since it is not applicable to coordinate positions. The CI_Citation class is not directly encoded, since such information can be included as metaDataProperty elements which are optionally allowed. A modified version of the EX_Extent (DataType) class from ISO 19115 is currently encoded here, using GML 3 schema types. (A more extensive version of the EX_Extent package might be XML encoded in the future, probably in a separate extent.xsd schema.)
		Caution: The CRS package in GML 3.1 and GML 3.1.1 is preliminary, and is expected to undergo some modifications that are not backward compatible during the development of GML 3.2 (ISO 19136). The GML 3.2 package will implement the model described in the revised version of ISO 19111.