gml:LinearCSPropertyType is a property type for association roles to a linear coordinate system, either referencing or containing the definition of that coordinate system.
<complexType name="LinearCSPropertyType"><annotation><documentation>gml:LinearCSPropertyType is a property type for association roles to a linear coordinate system, either referencing or containing the definition of that coordinate system.</documentation></annotation><sequence minOccurs="0"><element ref="gml:LinearCS"/></sequence><attributeGroup ref="gml:AssociationAttributeGroup"/></complexType>