Defines a straight line irrespective of the active coordinate system.
Keypoint at the beginning of line. If
P, graphical picking is enabled and all remaining command fields are ignored
(valid only in the GUI)
Keypoint at the end of line.
Defines a straight line from
the global Cartesian coordinate system. The active coordinate system will
be ignored. The line shape is invariant with the coordinate system after
it is generated. Lines may be redefined only if not yet attached to an area.