A local Cartesian coordinate reference system that is tied to a spatial coordinatereference system. In addition to the coordinate system and datum of a GMLengineering CRS, it gives the spatial location of its origin and the spatiallocation and direction of each axis, so that local coordinates can be transformed tospatial coordinates.
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="LocalCartesianCRS" substitutionGroup="gml:AbstractSingleCRS" type="diggs:LocalCartesianCRSType"><annotation><documentation>A local Cartesian coordinate reference system that is tied to a spatial coordinate reference system. In addition to the coordinate system and datum of a GML engineering CRS, it gives the spatial location of its origin and the spatial location and direction of each axis, so that local coordinates can be transformed to spatial coordinates.</documentation></annotation></element>