Definition: OGP XML
<div class="syntax"><pre><span class="cp"><?xml version="1.0" encoding="UTF-8"?></span>
<span class="nt"><gml:GeodeticDatum</span> <span class="na">xmlns:epsg=</span><span class="s">"urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset"</span> <span class="na">xmlns:gml=</span><span class="s">"http://www.opengis.net/gml/3.2"</span> <span class="na">xmlns:xlink=</span><span class="s">"http://www.w3.org/1999/xlink"</span> <span class="na">gml:id=</span><span class="s">"epsg-datum-6678"</span><span class="nt">></span>
<span class="nt"><gml:metaDataProperty></span>
<span class="nt"><epsg:CommonMetaData></span>
<span class="nt"><epsg:type></span>geodetic<span class="nt"></epsg:type></span>
<span class="nt"><epsg:alias</span> <span class="na">alias=</span><span class="s">"Lao 1997"</span> <span class="na">code=</span><span class="s">"2413"</span> <span class="na">codeSpace=</span><span class="s">"urn:ogc:def:naming-system:EPSG::7302"</span> <span class="nt">/></span>
<span class="nt"><epsg:informationSource></span>National Geographic Department<span class="nt"></epsg:informationSource></span>
<span class="nt"><epsg:revisionDate></span>2008-06-24<span class="nt"></epsg:revisionDate></span>
<span class="nt"><epsg:changes></span>
<span class="nt"><epsg:changeID</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:change-request:EPSG::2008.045"</span> <span class="nt">/></span>
<span class="nt"></epsg:changes></span>
<span class="nt"><epsg:isDeprecated></span>false<span class="nt"></epsg:isDeprecated></span>
<span class="nt"></epsg:CommonMetaData></span>
<span class="nt"></gml:metaDataProperty></span>
<span class="nt"><gml:identifier</span> <span class="na">codeSpace=</span><span class="s">"OGP"</span><span class="nt">></span>urn:ogc:def:datum:EPSG::6678<span class="nt"></gml:identifier></span>
<span class="nt"><gml:name></span>Lao National Datum 1997<span class="nt"></gml:name></span>
<span class="nt"><gml:remarks></span>Replaces Lao 1993.<span class="nt"></gml:remarks></span>
<span class="nt"><gml:domainOfValidity</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:area:EPSG::1138"</span> <span class="nt">/></span>
<span class="nt"><gml:scope></span>Cadastre, topographic mapping, engineering survey.<span class="nt"></gml:scope></span>
<span class="nt"><gml:anchorDefinition></span>Fundamental point: Vientiane (Nongteng) Astro Pillar. Latitude: 18°01'31.3480"N, longitude: 102°30'57.1376"E (of Greenwich).<span class="nt"></gml:anchorDefinition></span>
<span class="nt"><gml:realizationEpoch></span>1997-01-01<span class="nt"></gml:realizationEpoch></span>
<span class="nt"><gml:primeMeridian</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:meridian:EPSG::8901"</span> <span class="nt">/></span>
<span class="nt"><gml:ellipsoid</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:ellipsoid:EPSG::7024"</span> <span class="nt">/></span>
<span class="nt"></gml:GeodeticDatum></span>
</pre></div>
<?xml version="1.0" encoding="UTF-8"?>
<gml:GeodeticDatum xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="epsg-datum-6678">
<gml:metaDataProperty>
<epsg:CommonMetaData>
<epsg:type>geodetic</epsg:type>
<epsg:alias alias="Lao 1997" code="2413" codeSpace="urn:ogc:def:naming-system:EPSG::7302" />
<epsg:informationSource>National Geographic Department</epsg:informationSource>
<epsg:revisionDate>2008-06-24</epsg:revisionDate>
<epsg:changes>
<epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2008.045" />
</epsg:changes>
<epsg:isDeprecated>false</epsg:isDeprecated>
</epsg:CommonMetaData>
</gml:metaDataProperty>
<gml:identifier codeSpace="OGP">urn:ogc:def:datum:EPSG::6678</gml:identifier>
<gml:name>Lao National Datum 1997</gml:name>
<gml:remarks>Replaces Lao 1993.</gml:remarks>
<gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::1138" />
<gml:scope>Cadastre, topographic mapping, engineering survey.</gml:scope>
<gml:anchorDefinition>Fundamental point: Vientiane (Nongteng) Astro Pillar. Latitude: 18°01'31.3480"N, longitude: 102°30'57.1376"E (of Greenwich).</gml:anchorDefinition>
<gml:realizationEpoch>1997-01-01</gml:realizationEpoch>
<gml:primeMeridian xlink:href="urn:ogc:def:meridian:EPSG::8901" />
<gml:ellipsoid xlink:href="urn:ogc:def:ellipsoid:EPSG::7024" />
</gml:GeodeticDatum>