Language Pcl LJ1831.ASC

USING  SCALING EFFECTIVELY

    

WHAT IS SCALING?
     
     In HP-GL/2, the standard units of measure are plotter
     units (plu). These units are equal to 1016 units per
     inch. Scaling allows you, the user, define an easier
     value to use. You can define a coordinate system that
     uses 1 unit per inch, centimeter, millimeter or just
     a rounder number such as 100, 200, 500, or 1000 units 
     per inch. Overall, scaling lets you define an easier to
     calculate coordinate system.
     
     LEGEND: Ec = [Ctrl] [P] [Esc] in DOS EDIT
     
     EcE                           Resets printer.
     
     Ec%0B                         Enters HP-GL/2 mode using
                                   the default picture frame
                                   size and anchor point.
     
     IN;                           Initializes HP-GL/2 mode.
     
     IP0,0,2000,2000;              Sets P1 to (0,0) and P2
                                   to (2000,2000).
     
     SC0,10,0,10;                  Sets up user-unit scaling
                                   to range from (0,0) to
                                   (10,10).
     
     SP1;                          Selects pen number 1.
                                   Even though there is no
                                   physical pen, the SP
                                   command must be used to
                                   enable printing.
     
     PA5,5;                        Begins absolute plotting
                                   from the center of the
                                   square (5,5).
     
     CI3;                          Prints a circle with a
                                   radius of 3 user-units.
     
     IP2500,500,3500,1500;         Inputs a new P1 and P2
                                   position for printing a
                                   smaller circle.
     
     PA5,5;                        Begins absolute plotting
                                   from the center of the
                                   new square (5,5).
     
     CI3;                          Prints the second circle
                                   with a radius of 3 user-
                                   units.
     
     Ec%0A                         Enters PCL Mode.
     
     EcE                           Resets the printer to
                                   complete the job and
                                   eject the page.
     
     
            Copyright  Hewlett-Packard Co. 1993
   The information contained herein is subject to change
                      without notice.
   Hewlett-Packard shall not be liable for incidental or
  consequential damages in connection with the use of this
                         material.