GeodesicStringType, GeodesicString Curve segments .1 AbstractCurveSegmentType, AbstractCurveSegment

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10.5 Geometric primitives 2-dimensional

10.5.1 AbstractSurfaceType, AbstractSurface

complexType name=AbstractSurfaceType abstract=true complexContent extension base=gml:AbstractGeometricPrimitiveType complexContent complexType element name=AbstractSurface type=gml:AbstractSurfaceType abstract=true substitutionGroup=gml:AbstractGeometricPrimitive gml:AbstractSurfaceType is an abstraction of a surface to support the different levels of complexity. A surface is always a continuous region of a plane. The gml:AbstractSurface element is the abstract head of the substitution group for all continuous surface elements.

10.5.2 SurfacePropertyType, surfaceProperty

complexType name=SurfacePropertyType sequence minOccurs=0 element ref=gml:AbstractSurface sequence attributeGroup ref=gml:AssociationAttributeGroup attributeGroup ref=gml:OwnershipAttributeGroup complexType element name=surfaceProperty type=gml:SurfacePropertyType A property that has a surface as its value domain may either be an appropriate geometry element encapsulated in an element of this type or an XLink reference to a remote geometry element where remote includes geometry elements located elsewhere in the same document. Either the reference or the contained element shall be given, but neither both nor none. This property element either references a surface via the XLink-attributes or contains the surface element. surfaceProperty is the predefined property which may be used by GML application schemas whenever a GML feature has a property with a value that is substitutable for gml:AbstractSurface.

10.5.3 SurfaceArrayPropertyType, surfaceArrayProperty

complexType name=SurfaceArrayPropertyType sequence minOccurs=0 maxOccurs=unbounded element ref=gml:AbstractSurface sequence attributeGroup ref=gml:OwnershipAttributeGroup complexType gml:SurfaceArrayPropertyType is a container for an array of surfaces. The elements are always contained in the array property, referencing geometry elements or arrays of geometry elements via XLinks is not supported. element name=surfaceArrayProperty type=gml:SurfaceArrayPropertyType This property element contains a list of surface elements. surfaceArrayProperty is the predefined property which may be used by GML application schemas whenever a GML feature has a property with a value that is substitutable for a list of AbstractSurfaces.