gml:CartesianCS is a 1-, 2-, or 3-dimensional coordinate system. In the1-dimensional case, it contains a single straight coordinate axis. In the 2- and3-dimensional cases gives the position of points relative to orthogonal straight axes. Inthe multi-dimensional case, all axes shall have the same length unit of measure. ACartesianCS shall have one, two, or three gml:axis property elements.
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="CartesianCS" type="gml:CartesianCSType" substitutionGroup="gml:AbstractCoordinateSystem"><annotation><documentation>gml:CartesianCS is a 1-, 2-, or 3-dimensional coordinate system. In the 1-dimensional case, it contains a single straight coordinate axis. In the 2- and 3-dimensional cases gives the position of points relative to orthogonal straight axes. In the multi-dimensional case, all axes shall have the same length unit of measure. A CartesianCS shall have one, two, or three gml:axis property elements.</documentation></annotation></element>