A LineString is a special curve that consists of a single segment with linearinterpolation. It is defined by two or more coordinate tuples, with linear interpolationbetween them. The number of direct positions in the list shall be at leasttwo.
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.
<element name="LineString" type="gml:LineStringType" substitutionGroup="gml:AbstractCurve"><annotation><documentation>A LineString is a special curve that consists of a single segment with linear interpolation. It is defined by two or more coordinate tuples, with linear interpolation between them. The number of direct positions in the list shall be at least two.</documentation></annotation></element>