plwid: Set pen width 

DESCRIPTION:

    Sets the pen width. 

SYNOPSIS:

plwid(width)

ARGUMENTS:

    width (PLINT, input) :    The desired pen width.  If width is negative
    or the same as the previous value no action is taken.
    width = 0 should be interpreted as
    as the minimum valid pen width for the device.  The interpretation of
    positive
    width values is also device
    dependent.