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Merge pull request #4330 from kalxas/metadata_schema
Adding Metadata schema for WP1 for QEP-91
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‎resources/qgis-resource-metadata.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<ResourceMetadata xmlns="http://qgis.org/resource-metadata/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0" xsi:schemaLocation="http://qgis.org/resource-metadata/1.0 qgis-resource-metadata.xsd">
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<identifier>1234</identifier>
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<parentidentifier>xyz</parentidentifier>
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<language>en-CA</language>
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<type>dataset</type>
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<title>roads</title>
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<abstract>my roads</abstract>
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<keywords vocabulary="GEMET">
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<keyword>kw1</keyword>
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<keyword>kw2</keyword>
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</keywords>
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<fees>None</fees>
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<constraints type="access">None<constraints>
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<rights>Copyright foo 2017</rights>
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<encoding>utf-8</encoding>
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<crs>EPSG:4326</crs>
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<extent>
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<spatial dimensions="2" crs="EPSG:4326" minx="-180" miny="-90" maxx="180" maxy="90"/>
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<temporal>
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<instant>2001-12-17T09:30:47Z</instant>
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</temporal>
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</extent>
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<contact>
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<name>John Smith</name>
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<organization>ACME</organization>
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<position>staff</position>
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<address>
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<type>postal</type>
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<address>123 Main Street</address>
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<city>anycity</city>
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<administrativearea>anyprovince</administrativearea>
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<postalcode>90210</postalcode>
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<country>Canada</country>
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</address>
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<voice>xx.xxx.xxx.xxxx</voice>
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<fax>xx.xxx.xxx.xxxx</fax>
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<email>foo@example.org</email>
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<role>pointOfContact</role>
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</contact>
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<links>
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<link name="geonode:roads" type="OGC:WMS" description="my GeoNode road layer" url="http://example.org/wms"/>
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<link name="geonode:roads" type="OGC:WFS" description="my GeoNode road layer" url="http://example.org/wfs"/>
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<link name="roads" type="WWW:LINK" description="full dataset download" url="http://example.org/roads.tgz" format="ESRI Shapefile" mimeType="application/gzip" size="283676"/>
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</links>
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</ResourceMetadata>

‎resources/qgis-resource-metadata.xsd‎

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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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###############################################################################
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#
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# Copyright (C) 2017 Tom Kralidis (tomkralidis@gmail.com)
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# Copyright (C) 2017 Angelos Tzotsos (gcpp.kalxas@gmail.com)
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#
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# This source is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free
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# Software Foundation; either version 2 of the License, or (at your option)
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# any later version.
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#
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# This code is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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###############################################################################
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-->
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<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:rm="http://qgis.org/resource-metadata/1.0" targetNamespace="http://qgis.org/resource-metadata/1.0" elementFormDefault="qualified" attributeFormDefault="unqualified" version="1.0">
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<xs:element name="ResourceMetadata" type="rm:ResourceMetadataType">
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<xs:annotation>
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<xs:appinfo>QGIS Resource Metadata Schema</xs:appinfo>
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<xs:documentation>Copyright (C) 2017 Tom Kralidis (tomkralidis@gmail.com)</xs:documentation>
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<xs:documentation>Copyright (C) 2017 Angelos Tzotsos (gcpp.kalxas@gmail.com)</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:complexType name="ResourceMetadataType">
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<xs:sequence>
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<xs:element name="identifier" type="xs:string">
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<xs:annotation>
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<xs:documentation>Reference, URI, URL or some other mechanism to identify a given resource. </xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="parentidentifier" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>Reference, URI, URL or some other mechanism that that a given resource is a part of (child).</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="language" type="xs:string">
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<xs:annotation>
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<xs:documentation>Human language associated with a given resource. While a formal vocabulary is not imposed, it is advised to use ISO 3166/ISO 639.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="type" type="xs:string">
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<xs:annotation>
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<xs:documentation>Nature of a given resource. While a formal vocabulary is not imposed, it is advised to use the ISO 19115 MD_ScopeCode.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="title" type="xs:string">
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<xs:annotation>
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<xs:documentation>Human readable name of a given resource typically displayed in search results.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="abstract" type="xs:string">
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<xs:annotation>
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<xs:documentation>Description of a given resource.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="keywords" type="rm:keywordsType" minOccurs="0" maxOccurs="unbounded">
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<xs:annotation>
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<xs:documentation>Set of descriptive keywords associated with a given resource.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="fees" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>Any fees associated with a given resource.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="constraints" type="rm:constraintsType" minOccurs="0" maxOccurs="unbounded">
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<xs:annotation>
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<xs:documentation>List of constraints associated with a given resource.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="rights" type="xs:string" minOccurs="0" maxOccurs="unbounded">
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<xs:annotation>
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<xs:documentation>Attribution or copyright associated with a given resource.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="license" type="xs:string" minOccurs="1" maxOccurs="unbounded">
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<xs:annotation>
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<xs:documentation>License associated with a given resource (examples: http://opendefinition.org/licenses/).</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="encoding" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>Character encoding of the data of a given resource.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="crs" type="xs:string">
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<xs:annotation>
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<xs:documentation>Coordinate reference system associated with the data of a given resource. Examples:
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* EPSG:EPSGCODE
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* http://www.opengis.net/def/crs/EPSG/0/EPSGCODE (URI Style 1)
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* http://www.opengis.net/gml/srs/epsg.xml#EPSGCODE (URI Style 2)
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* urn:EPSG:geographicCRS:EPSGCODE
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* urn:ogc:def:crs:EPSG::EPSGCODE
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* urn:ogc:def:crs:EPSG:EPSGCODE
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</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="extent" type="rm:extentType" maxOccurs="1">
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<xs:annotation>
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<xs:documentation>Spatial and temporal extents associated with a given resource.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="contact" type="rm:contactType" maxOccurs="unbounded">
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<xs:annotation>
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<xs:documentation>Contact person/entity associated with a given resource.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="links" type="rm:linksType">
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<xs:annotation>
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<xs:documentation>Set of online resources associated with a given resource.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="history" type="xs:string" minOccurs="0" maxOccurs="unbounded">
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<xs:annotation>
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<xs:documentation>Freeform description of the history or lineage of the resource.</xs:documentation>
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</xs:annotation>
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</xs:element>
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</xs:sequence>
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<xs:attribute name="version" use="required" fixed="1.0">
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<xs:annotation>
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<xs:documentation>Version of QGIS Resource Metadata schema used. </xs:documentation>
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</xs:annotation>
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</xs:attribute>
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</xs:complexType>
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<xs:complexType name="constraintsType">
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<xs:simpleContent>
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<xs:extension base="xs:string">
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<xs:attribute name="type" type="xs:string">
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<xs:annotation>
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<xs:documentation>Type of constraint. Suggested types are 'access', 'other'.</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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</xs:extension>
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</xs:simpleContent>
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</xs:complexType>
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<xs:complexType name="keywordsType">
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<xs:sequence>
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<xs:element name="keyword" maxOccurs="unbounded">
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<xs:annotation>
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<xs:documentation>Descriptive keyword associated with a resource. While a formal vocabulary is not imposed, it is advised to use rm:keywords/@vocabulary to identify a codelist or applicable vocabulary.</xs:documentation>
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</xs:annotation>
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</xs:element>
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</xs:sequence>
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<xs:attribute name="vocabulary" type="xs:string">
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<xs:annotation>
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<xs:documentation>Reference (URI/URL preferred) to a codelist or vocabulary associated with keyword list.</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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</xs:complexType>
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<xs:complexType name="extentType">
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<xs:sequence>
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<xs:element name="spatial" type="rm:spatialType" maxOccurs="unbounded">
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<xs:annotation>
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<xs:documentation>Geospatial Extent of a given resource.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="temporal" type="rm:temporalType" minOccurs="0" maxOccurs="unbounded">
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<xs:annotation>
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<xs:documentation>Temporal extent associated with a given resource. It is advised to use ISO 8601 for consistency.</xs:documentation>
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</xs:annotation>
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</xs:element>
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</xs:sequence>
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</xs:complexType>
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<xs:complexType name="spatialType">
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<xs:attribute name="dimensions" type="xs:integer" default="2"/>
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<xs:attribute name="crs" type="xs:string" use="required">
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<xs:annotation>
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<xs:documentation>Coordinate reference system.</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="minx" type="xs:decimal" use="required">
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<xs:annotation>
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<xs:documentation>Minimum x value according to crs.</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="miny" type="xs:decimal" use="required">
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<xs:annotation>
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<xs:documentation>Minimum y value according to crs.</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="minz" type="xs:decimal" use="optional">
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<xs:annotation>
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<xs:documentation>Minimum z value according to crs.</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="maxx" type="xs:decimal" use="required">
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<xs:annotation>
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<xs:documentation>Maximum x value according to crs.</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="maxy" type="xs:decimal" use="required">
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<xs:annotation>
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<xs:documentation>Maximum y value according to crs.</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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<xs:attribute name="maxz" type="xs:decimal" use="optional">
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<xs:annotation>
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<xs:documentation>Maximum z value according to crs.</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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</xs:complexType>
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<xs:complexType name="temporalType">
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<xs:choice>
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<xs:element name="instant" type="xs:dateTime">
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<xs:annotation>
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<xs:documentation>Single point in time.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="period" type="rm:periodType">
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<xs:annotation>
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<xs:documentation>Time period or envelope.</xs:documentation>
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</xs:annotation>
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</xs:element>
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</xs:choice>
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</xs:complexType>
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<xs:complexType name="periodType">
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<xs:sequence>
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<xs:element name="start" type="xs:dateTime">
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<xs:annotation>
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<xs:documentation>Begin date/time.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="end" type="xs:dateTime" minOccurs="0">
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<xs:annotation>
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<xs:documentation>End date/time.</xs:documentation>
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</xs:annotation>
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</xs:element>
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</xs:sequence>
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<xs:attribute name="indeterminatePosition" type="xs:boolean">
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<xs:annotation>
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<xs:documentation>Whether resource has no end date/time (i.e. continuous acquisition).</xs:documentation>
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</xs:annotation>
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</xs:attribute>
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</xs:complexType>
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<xs:complexType name="contactType">
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<xs:sequence>
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<xs:element name="name" type="xs:string">
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<xs:annotation>
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<xs:documentation>Name of contact.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="organization" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>Organization contact belongs to/represents.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="position" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>Position/title of contact.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="address" type="rm:addressType" minOccurs="0" maxOccurs="unbounded">
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<xs:annotation>
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<xs:documentation>Address associated with a given contact.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="voice" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>Voice telephone.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="fax" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>Facsimile telephone.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="email" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>Electronic mail address (note, do not include mailto: protocol as part of the email address).</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="role" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>Role of contact. While no vocabulary is imposed, it is advised to use ISO 19115 CI_RoleCode.</xs:documentation>
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</xs:annotation>
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</xs:element>
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</xs:sequence>
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</xs:complexType>
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<xs:complexType name="addressType">
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<xs:sequence>
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<xs:element name="type" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>Type of address (e.g. 'postal').</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="address" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>Physical address.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="city" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>City.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="administrativearea" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>Administrative area (state, provice/territory, etc.).</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="postalcode" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>Postal code.</xs:documentation>
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</xs:annotation>
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</xs:element>
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<xs:element name="country" type="xs:string" minOccurs="0">
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<xs:annotation>
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<xs:documentation>Country.</xs:documentation>
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</xs:annotation>
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</xs:element>
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</xs:sequence>
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</xs:complexType>
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<xs:complexType name="linksType">
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<xs:sequence>
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<xs:element name="link" type="rm:linkType" maxOccurs="unbounded">
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<xs:annotation>
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<xs:documentation>Online resource associated with a given resource. Attribute definitions:
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* name: short name (like WMS layer name)
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* type: link type. Strongly suggested to use values from the 'identifier' column in https://github.com/OSGeo/Cat-Interop/blob/master/LinkPropertyLookupTable.csv
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* description: abstract text about link
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* url: endpoint. If the URL is an OWS server, specify the *base* URL only without parameters like service=xxx.....
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* format: format specification of online resource. Strongly suggested to use GDAL/OGR format values
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* mimeType: MIME type representative of the online resource response (image/png, application/json, etc.)
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* size: estimated size (in bytes) of the online resource response
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</xs:documentation>
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</xs:annotation>
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</xs:element>
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</xs:sequence>
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</xs:complexType>
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<xs:complexType name="linkType">
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<xs:attributeGroup ref="rm:linkAttrs"/>
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</xs:complexType>
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<xs:attributeGroup name="linkAttrs">
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<xs:attribute name="name" type="xs:string"/>
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<xs:attribute name="type" type="xs:string"/>
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<xs:attribute name="description" type="xs:string" use="optional"/>
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<xs:attribute name="url" type="xs:anyURI" use="required"/>
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<xs:attribute name="format" type="xs:string" use="optional"/>
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<xs:attribute name="mimeType" type="xs:string" use="optional"/>
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<xs:attribute name="size" type="xs:string" use="optional"/>
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</xs:attributeGroup>
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</xs:schema>

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