There are two different line drawing tools: the Line tool and the Drawing of polylines tool.

The line is the simplest of all elements. It is defined by the start and end points and the connection between these points. The position of these points defines both the length and the orientation of the line.

The polyline, however, consists of several interconnected line segments. If the start and end points of the polyline meet, this is referred to as a closed polyline, otherwise it is known as an open polyline.