Help System (web edition)

The control codes for various graphical elements in PostScript plotting
are mostly the same as on other devices.
Line width is selected by [line_width(x)] where x is given in points
(1 point = 1/12 inches). Default value is x=0.48 .
Line types are selected by [line_type(x)] where possible values are
x=0,1,...,7. The line types are defined in PS.DEV as a vector /ltype.
The user can add more types and modify existing ones by editing PS.DEV.
Markings for points (in scatter diagrams, for example) defined by the
POINT specification are following:
0=black circle, 1=plus, 2=asterisk, 3=white circle, 4=cross, 5=white
square, 6=black square, 7=white triangle, 8=black triangle, 9=white
diamond, 10=black diamond, 21=arrow head, 22=filled arrow head.

  P = More information on PostScript plotting