FIGURE:ARROW

types

 The type of arrow is chosen with the SET ARROTYP command.
 ARROTYP = 00 - open head, line segment with arrowhead at one end
           01 - open head, line segment with arrowhead at each end
           02 - open head, arrowhead at one end with no line segment
           10 - closed head, line segment with arrowhead at one end
           11 - closed head, line segment with arrowhead at each end
           12 - closed head, arrowhead at one end with no line segment
 The default is ARROTYP = 00

width

 The width of the arrowhead is chosen with the SET ARROWID command,
 where ARROWID is the arrowhead width as a fraction of the total
 arrow length. The default is ARROWID = 0.15

length

 The length of the arrowhead is chosen with the SET ARROLEN command,
 where ARROLEN is the arrowhead length as a fraction of the total
 arrow length.  The default is ARROLEN = 0.20