Class <<FeatureType>> MappedFeature

<xs:element xmlns:xs="http://www.w3.org/2001/XMLSchema" name="MappedFeature" substitutionGroup="gml:AbstractFeature" 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

          - the association with a Geologic Feature (legend item) provides specification of all the other descriptors

          - 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" nillable="true">

                    <xs:annotation>

                        <xs:documentation>MappedFeature ObservationMethod is a metadata snippet indicating how the spatial extent of the mapped feature was determined, and the basis for association of the geometry with some GeologicFeature specification to define a MappedFeature. For a borehole, the MappedInterval observation method indicates how the boundaries of the interval were defined (eg, linear measurement from borehole collar). ObservationMethod is a convenience property that provides a quick and dirty approach to observation metadata when data are reported using a feature view (as opposed to observation view). This property corresponds (loosely) to ISO19115 Lineage.  (eg: digitised, Global Positioning System, published map, fieldObservation, downhole survey, aerial photography, field survey)</xs:documentation>

                    </xs:annotation>

                    <xs:complexType>

                        <xs:complexContent>

                            <xs:extension base="swe:CategoryPropertyType">

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

                            </xs:extension>

                        </xs:complexContent>

                    </xs:complexType>

                </xs:element>

                <xs:element name="positionalAccuracy" nillable="true">

                    <xs:annotation>

                        <xs:documentation>Quantitative values define the radius of an uncertainty buffer around a mappedFeature (eg: a positionAccuracy of 100 m for a line feature defines a buffer polygon of total width 200 m centred on the line).  Corresponds to ISO19115 DQ_PositionalAccuracy.</xs:documentation>

                    </xs:annotation>

                    <xs:complexType>

                        <xs:complexContent>

                            <xs:extension base="swe:QuantityPropertyType">

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

                            </xs:extension>

                        </xs:complexContent>

                    </xs:complexType>

                </xs:element>

                <xs:element name="resolutionScale" nillable="true" type="gmd:MD_RepresentativeFraction_PropertyType">

                    <xs:annotation>

                        <xs:documentation>Reciprocal of equivalent scale of resolution for delineation of a feature's geometry. This is in contrast to positionAccuracy which is a measure of how well a feature is located relative to other features in the geographic reference system.</xs:documentation>

                    </xs:annotation>

                </xs:element>

                <xs:element name="samplingFrame" type="gml:ReferenceType">

                    <xs:annotation>

                        <xs:documentation>It is expected in GeoSciML that this byReference association will resolve to a SF_SpatialSamplingFeature instance which may include a spatial (GML) representation of the sampling frame (eg, a map tile, a 3D surface), or may resolve to a concept from a controlled source (eg,http://resource.geosciml.org/feature/cgi/EarthNaturalSurface)</xs:documentation>

                        <xs:appinfo>

                            <gml:targetElement xmlns:gml="http://www.opengis.net/gml/3.2">sams:SF_SpatialSamplingFeature</gml:targetElement>

                        </xs:appinfo>

                    </xs:annotation>

                </xs:element>

                <xs:element name="shape" type="gml:GeometryPropertyType"/>

                <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="metadata" type="gmd:MD_Metadata_PropertyType" nillable="true"/>

            </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:attributeGroup ref="gml:OwnershipAttributeGroup"/>

</xs:complexType>