grap(1)                                                   grap(1)



     NAME
          grap - pic preprocessor for drawing graphs

     SYNOPSIS
          grap [-Ttty-type] [-l] [-] [file...]

     DESCRIPTION
          grap is a language for typesetting graphs.  It is also the
          name of a preprocessor that feeds input to pic(1).  Thus, a
          typical command line would appear as follows:

             grap files | pic | troff | output-device

          Graphs are surrounded by the troff commands .G1 and .G2.
          Data that is enclosed is scaled and plotted, with tick marks
          supplied automatically.  Commands exist to modify the frame,
          add labels, override the default ticks, change the plotting
          style, define coordinate ranges and transformations, and in-
          clude data from files.  In addition, grap provides the same
          loops, conditionals and macro processing that pic does.

     FLAG OPTIONS
          -T   Specifies tty-type as grap's output device.  Currently
               supported devices are psc (POSTSCRIPT device such as
               the Apple LaserWriter) and aps (Autologic APS-5).  The
               default is -Tpsc.

          -l   Stops grap from looking for a library file of macro de-
               fines, /usr/lib/dwb/grap.defines.

     FILES
          /usr/bin/grap
          /usr/lib/dwb/grap.defines
                                  definitions of standard plotting
                                  characters

     SEE ALSO
          pic(1).
          ``grap Reference'' in A/UX Text Processing Tools.
















     April, 1990                                                     1