Metacat

<?xml version="1.0" encoding="UTF-8"?>

<schema targetNamespace="http://www.opengis.net/gml/3.2" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" version="3.2.1.2">

	<annotation>

		<appinfo source="urn:x-ogc:specification:gml:schema-xsd:feature:3.2.1">feature.xsd</appinfo>

		<documentation>See ISO/DIS 19136 Clause 9.

A GML feature is a (representation of a) identifiable real-world object in a selected domain of discourse. The feature schema provides a framework for the creation of GML features and feature collections.

GML is an OGC Standard.

Copyright (c) 2007,2010 Open Geospatial Consortium.

To obtain additional rights of use, visit http://www.opengeospatial.org/legal/ .

		</documentation>

	</annotation>

	<include schemaLocation="gml.xsd"/>

	<include schemaLocation="geometryAggregates.xsd"/>

	<include schemaLocation="temporal.xsd"/>

	<complexType name="AbstractFeatureType" abstract="true">

		<annotation>

			<documentation>The basic feature model is given by the gml:AbstractFeatureType.

The content model for gml:AbstractFeatureType adds two specific properties suitable for geographic features to the content model defined in gml:AbstractGMLType. 

The value of the gml:boundedBy property describes an envelope that encloses the entire feature instance, and is primarily useful for supporting rapid searching for features that occur in a particular location. 

The value of the gml:location property describes the extent, position or relative location of the feature.</documentation>

		</annotation>

		<complexContent>

			<extension base="gml:AbstractGMLType">

				<sequence>

					<element ref="gml:boundedBy" minOccurs="0"/>

					<element ref="gml:location" minOccurs="0"/>

				</sequence>

			</extension>

		</complexContent>

	</complexType>

	<element name="AbstractFeature" type="gml:AbstractFeatureType" abstract="true" substitutionGroup="gml:AbstractGML">

		<annotation>

			<documentation>This abstract element serves as the head of a substitution group which may contain any elements whose content model is derived from gml:AbstractFeatureType.  This may be used as a variable in the construction of content models.  

gml:AbstractFeature may be thought of as "anything that is a GML feature" and may be used to define variables or templates in which the value of a GML property is "any feature". This occurs in particular in a GML feature collection where the feature member properties contain one or multiple copies of gml:AbstractFeature respectively.</documentation>

		</annotation>

	</element>

	<complexType name="FeaturePropertyType">

		<sequence minOccurs="0">

			<element ref="gml:AbstractFeature"/>

		</sequence>

		<attributeGroup ref="gml:OwnershipAttributeGroup"/>

		<attributeGroup ref="gml:AssociationAttributeGroup"/>

	</complexType>

	<element name="boundedBy" type="gml:BoundingShapeType" nillable="true">

		<annotation>

			<documentation>This property describes the minimum bounding box or rectangle that encloses the entire feature.</documentation>

		</annotation>

	</element>

	<complexType name="BoundingShapeType">

		<sequence>

			<choice>

				<element ref="gml:Envelope"/>

				<element ref="gml:Null"/>

			</choice>

		</sequence>

		<attribute name="nilReason" type="gml:NilReasonType"/>

	</complexType>

	<element name="EnvelopeWithTimePeriod" type="gml:EnvelopeWithTimePeriodType" substitutionGroup="gml:Envelope">

		<annotation>

			<documentation>gml:EnvelopeWithTimePeriod is provided for envelopes that include a temporal extent. It adds two time position properties, gml:beginPosition and gml:endPosition, which describe the extent of a time-envelope.  

Since gml:EnvelopeWithTimePeriod is assigned to the substitution group headed by gml:Envelope, it may be used whenever gml:Envelope is valid.</documentation>

		</annotation>

	</element>

	<complexType name="EnvelopeWithTimePeriodType">

		<complexContent>

			<extension base="gml:EnvelopeType">

				<sequence>

					<element name="beginPosition" type="gml:TimePositionType"/>

					<element name="endPosition" type="gml:TimePositionType"/>

				</sequence>

				<attribute name="frame" type="anyURI" default="#ISO-8601"/>

			</extension>

		</complexContent>

	</complexType>

	<element name="locationName" type="gml:CodeType">

		<annotation>

			<documentation>The gml:locationName property element is a convenience property where the text value describes the location of the feature. If the location names are selected from a controlled list, then the list shall be identified in the codeSpace attribute.</documentation>

		</annotation>

	</element>

	<element name="locationReference" type="gml:ReferenceType">

		<annotation>

			<documentation>The gml:locationReference property element is a convenience property where the text value referenced by the xlink:href attribute describes the location of the feature.</documentation>

		</annotation>

	</element>

	<complexType name="AbstractFeatureMemberType" abstract="true">

		<annotation>

			<documentation>To create a collection of GML features, a property type shall be derived by extension from gml:AbstractFeatureMemberType.

By default, this abstract property type does not imply any ownership of the features in the collection. The owns attribute of gml:OwnershipAttributeGroup may be used on a property element instance to assert ownership of a feature in the collection. A collection shall not own a feature already owned by another object.</documentation>

		</annotation>

		<sequence/>

		<attributeGroup ref="gml:OwnershipAttributeGroup"/>

	</complexType>

</schema>