GRAP(1)                                                   GRAP(1)



     NAME
          grap - pic preprocessor for drawing graphs

     SYNOPSIS
          grap  [-Ttty_type ]  [ -l ]  [ -- ]  [ file_name(s) ]

     OPTIONS
               -T   Specifies tty_type as grap's output device.
                    Currently supported devices are aps (Autologic
                    APS-5) and di10 (Imagen Imprint 10).  -Taps is
                    default.
               -l   Stops grap from looking for a library file of
                    macro defines, /usr/lib/dwb/grap.defines.

     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  file_name(s)  |  pic  |  troff  |
                    typesetter

          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
          include data from files.  In addition, grap provides the
          same loops, conditionals and macro processing that pic does.

     FILES
          /usr/lib/dwb/grap.defines:  definitions of standard plotting
          characters, e.g., bullet.

     SEE ALSO
          pic(1)



















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