Class <<FeatureType>> MappedFeature

<xs:element xmlns:xs="http://www.w3.org/2001/XMLSchema" name="MappedFeature" substitutionGroup="gml:_Feature" type="gsml:MappedFeatureType">
    <xs:annotation>
        <xs:documentation>A MappedFeature is part of a geological interpretation. 
It provides a link between a notional feature (description package) and one spatial representation of it, or part of it. (Exposures, Surface Traces and Intercepts, etc)
    * the specific bounded occurrence, such as an outcrop or map polygon
    * the Mapped Feature carries a geometry or shape
          o the association with a Geologic Feature (legend item) provides specification of all the other descriptors
          o the association with a Sampling Feature provides the context and dimensionality 

A Mapped Feature is always associated with some sampling feature - e.g. a mapping surface, a section, a Borehole (see BoreHolesAndObservation) etc.  As noted on the diagram, if the associated sampling feature is a Borehole, then the shape associated with the MappedFeature will usually be either a point or an interval. This reconciles the 2-D ("map", section) and 1-D (borehole, traverse) viewpoints in a common abstraction.</xs:documentation>
    </xs:annotation>
</xs:element>

<xs:complexType xmlns:xs="http://www.w3.org/2001/XMLSchema" name="MappedFeatureType">
    <xs:complexContent>
        <xs:extension base="gml:AbstractFeatureType">
            <xs:sequence>
                <xs:element maxOccurs="unbounded" minOccurs="1" name="observationMethod" type="gsml:CGI_TermValuePropertyType">
                    <xs:annotation>
                        <xs:documentation>Specifies the method that was used to identify the MappedFeature. Examples: digitised,  Global Positioning System, published map, fieldObservation, downhole survey, aerial photography, field survey. This corresponds (loosely) to ISO19115 Lineage.Statement</xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element name="positionalAccuracy" type="gsml:CGI_ValuePropertyType">
                    <xs:annotation>
                        <xs:documentation>Examples: accurate, approximate, diagramatic, indefinite, unknown, 5 m. Corresponds to ISO19115 DQ_ThematicAccuracy (either quantitative or non quantitative).result.value</xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element name="samplingFrame" type="sa:SpatiallyExtensiveSamplingFeaturePropertyType">
                    <xs:annotation>
                        <xs:documentation>Specifies the sampling frame associated with the MappedFeature
SamplingFrame is MapHorizon or other reference frame within which the MappedFeature is located. Map sheet, outcrop, borehole, flightline, swath, specimen, section, etc
SampledFeature is usually a GSML collection that represent the geology of interest.</xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element name="specification" type="gsml:GeologicFeaturePropertyType">
                    <xs:annotation>
                        <xs:documentation>Point to the single geologic feature which describes the mapped feature.</xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element name="shape" type="gml:GeometryPropertyType">
                    <xs:annotation>
                        <xs:documentation>Points to the GML shape object that describes the geometry of the MappedFeature. The shape object may have any dimensionality.
The shape of a mapped feature is determined by observation, not assertion</xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element maxOccurs="1" minOccurs="0" name="metadata" type="gml:ReferenceType">
                    <xs:annotation>
                        <xs:appinfo>
                            <gml:targetElement xmlns:gml="http://www.opengis.net/gml">gmd:MD_Metadata</gml:targetElement>
                        </xs:appinfo>
                        <xs:documentation>Specifies the Metadata associated with the MappedFeature</xs:documentation>
                    </xs:annotation>
                </xs:element>
            </xs:sequence>
        </xs:extension>
    </xs:complexContent>
</xs:complexType>

<xs:complexType xmlns:xs="http://www.w3.org/2001/XMLSchema" name="MappedFeaturePropertyType">
    <xs:sequence minOccurs="0">
        <xs:element ref="gsml:MappedFeature"/>
    </xs:sequence>
    <xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>