如何确定给定的GML版本信息？
给定GML，如何确定其版本？例如，我的GML低于GML。有什么方法可以确定其版本1、2或更高版本？ 我看不到任何版本的信息。那么确定相同的准确方法是什么？
<gml:FeatureCollection
xmlns:gml="http://www.opengis.net/gml"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.opengeospatial.net/gml http://schemas.opengis.net/gml/3.1.1/profiles/gmlJP2Profile/1.0.0/gmlJP2Profile.xsd">
<gml:boundedBy>
<gml:Null>withheld</gml:Null>
</gml:boundedBy>
<gml:featureMember>
<gml:FeatureCollection>
<gml:featureMember>
<gml:RectifiedGridCoverage dimension="2" gml:id="RGC0001">
<gml:rectifiedGridDomain>
<gml:RectifiedGrid dimension="2">
<gml:limits>
<gml:GridEnvelope>
<gml:low>0 0</gml:low>
<gml:high>1023 1023</gml:high>
</gml:GridEnvelope>
</gml:limits>
<gml:axisName>x</gml:axisName>
<gml:axisName>y</gml:axisName>
<gml:origin>
<gml:Point gml:id="P0001" srsName="urn:ogc:def:crs:EPSG::4326">
<gml:pos>8.5001220703125 50.1249389648438</gml:pos>
</gml:Point>
</gml:origin>
<gml:offsetVector srsName="urn:ogc:def:crs:EPSG::4326">0.000244140625 0</gml:offsetVector>
<gml:offsetVector srsName="urn:ogc:def:crs:EPSG::4326">0 -0.0001220703125</gml:offsetVector>
</gml:RectifiedGrid>
</gml:rectifiedGridDomain>
<gml:rangeSet>
<gml:File>
<gml:fileName>gmljp2://codestream/0</gml:fileName>
<gml:fileStructure>Record Interleaved</gml:fileStructure>
</gml:File>
</gml:rangeSet>
</gml:RectifiedGridCoverage>
</gml:featureMember>
</gml:FeatureCollection>
</gml:featureMember>
</gml:FeatureCollection>
Given a GML, how to determine its version? For eg, i have below GML. Is there any way to determine if its version 1, 2 or higher?
I don't see any version information as such. So what is the accurate way to determine the same?
<gml:FeatureCollection
xmlns:gml="http://www.opengis.net/gml"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.opengeospatial.net/gml http://schemas.opengis.net/gml/3.1.1/profiles/gmlJP2Profile/1.0.0/gmlJP2Profile.xsd">
<gml:boundedBy>
<gml:Null>withheld</gml:Null>
</gml:boundedBy>
<gml:featureMember>
<gml:FeatureCollection>
<gml:featureMember>
<gml:RectifiedGridCoverage dimension="2" gml:id="RGC0001">
<gml:rectifiedGridDomain>
<gml:RectifiedGrid dimension="2">
<gml:limits>
<gml:GridEnvelope>
<gml:low>0 0</gml:low>
<gml:high>1023 1023</gml:high>
</gml:GridEnvelope>
</gml:limits>
<gml:axisName>x</gml:axisName>
<gml:axisName>y</gml:axisName>
<gml:origin>
<gml:Point gml:id="P0001" srsName="urn:ogc:def:crs:EPSG::4326">
<gml:pos>8.5001220703125 50.1249389648438</gml:pos>
</gml:Point>
</gml:origin>
<gml:offsetVector srsName="urn:ogc:def:crs:EPSG::4326">0.000244140625 0</gml:offsetVector>
<gml:offsetVector srsName="urn:ogc:def:crs:EPSG::4326">0 -0.0001220703125</gml:offsetVector>
</gml:RectifiedGrid>
</gml:rectifiedGridDomain>
<gml:rangeSet>
<gml:File>
<gml:fileName>gmljp2://codestream/0</gml:fileName>
<gml:fileStructure>Record Interleaved</gml:fileStructure>
</gml:File>
</gml:rangeSet>
</gml:RectifiedGridCoverage>
</gml:featureMember>
</gml:FeatureCollection>
</gml:featureMember>
</gml:FeatureCollection>
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您可以查看架构及其位置
XSI：schemalocation =“ http://www.opengeospatial.net/gml http://schemas.opengis.net/gml/3.1.1.1.1/profiles/gmljp2profile/1.0.0.0。 0/gmljp2profile.xsd“都应在
http://schemas.opengis.net/gml/上可以看到它们的版本显示http://www.opengeospatial.net/gml重定向到http://schemas.opengis.net/gml/gml/3.1.1/base/base/gmase/gml.gml.gml.xsdYou can look at the schemas and their locations
xsi:schemaLocation="http://www.opengeospatial.net/gml http://schemas.opengis.net/gml/3.1.1/profiles/gmlJP2Profile/1.0.0/gmlJP2Profile.xsd"They should all be versioned as can be seen at
http://schemas.opengis.net/gml/and if not then you can check in a browser which showshttp://www.opengeospatial.net/gmlredirects tohttp://schemas.opengis.net/gml/3.1.1/base/gml.xsd