The PLINE command creates a chain line with multiple vertexes and straight or circular segments between the vertexes. Polylines are of arbitrary width and the starting and the ending width can be different. As everywhere in LinuxCAD the user interface of PLINE command is the same as in Acad.

Polylines, as all other LinuxCAD objects, can be used as hatch boundaries.

At least 80% of the drafting work people do in AutoCAD may be done in LinuxCAD instead !!!