gml:EngineeringCRS is a contextually local coordinate reference system whichcan be divided into two broad categories: - earth-fixed systems applied to engineeringactivities on or near the surface of the earth; - CRSs on moving platforms such as roadvehicles, vessels, aircraft, or spacecraft, see ISO 19111 8.3.
Database handle for the object. It is of XML type ID, so is constrained to beunique in the XML document within which it occurs. An external identifier for the object inthe form of a URI may be constructed using standard XML and XPointer methods. This is doneby concatenating the URI for the document, a fragment separator, and the value of the idattribute.
Source
<element name="EngineeringCRS" type="gml:EngineeringCRSType" substitutionGroup="gml:AbstractSingleCRS"><annotation><documentation>gml:EngineeringCRS is a contextually local coordinate reference system which can be divided into two broad categories: - earth-fixed systems applied to engineering activities on or near the surface of the earth; - CRSs on moving platforms such as road vehicles, vessels, aircraft, or spacecraft, see ISO 19111 8.3.</documentation></annotation></element>