plot(4)                                                   plot(4)



     NAME
          plot - graphics interface

     DESCRIPTION
          Files of this format are produced by routines described in
          plot(3X) and are interpreted for various devices by commands
          described in tplot(1G).  A graphics file is a stream of
          plotting instructions.  Each instruction consists of an
          ASCII letter usually followed by bytes of binary
          information.  The instructions are executed in order.  A
          point is designated by four bytes representing the x and y
          values; each value is a signed integer.  The last designated
          point in an l, m, n, or p instruction becomes the ``current
          point'' for the next instruction.

          Each of the following descriptions begins with the name of
          the corresponding routine in plot(3X).

          m  move:  The next four bytes give a new current point.

          n  cont:  Draw a line from the current point to the point
             given by the next four bytes.  See tplot(1G).

          p  point:  Plot the point given by the next four bytes.

          l  line:  Draw a line from the point given by the next four
             bytes to the point given by the following four bytes.

          t  label:  Place the following ASCII string so that its
             first character falls on the current point.  The string
             is terminated by a newline.

          e  erase:  Start another frame of output.

          f  linemod:  Take the following string, up to a newline, as
             the style for drawing further lines.  The styles are
             ``dotted'', ``solid'', ``longdashed'', ``shortdashed'',
             and ``dotdashed''.  Effective only for the -T4014 and
             -Tver options of tplot(1G) (TEKTRONIX 4014 terminal and
             Versatec plotter).

          s  space:  The next four bytes give the lower left corner of
             the plotting area; the following four give the upper
             right corner.  The plot will be magnified or reduced to
             fit the device as closely as possible.

          Space settings that exactly fill the plotting area with
          unity scaling appear below for devices supported by the
          filters of tplot(1G).  The upper limit is just outside the
          plotting area.  In every case the plotting area is taken to
          be square; points outside may be displayable on devices
          whose face is not square.



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     plot(4)                                                   plot(4)



               DASI 300          space(0, 0, 4096, 4096);
               DASI 300s         space(0, 0, 4096, 4096);
               DASI 450          space(0, 0, 4096, 4096);
               TEKTRONIX 4014    space(0, 0, 3120, 3120);
               Versatec plotter  space(0, 0, 2048, 2048);

     SEE ALSO
          tplot(1G), plot(3X), term(5).

     WARNING
          The plotting library plot(3X) and the curses library
          curses(3X) both use the names erase() and move().  The
          curses versions are macros.  Bf you need both libraries, put
          the plot(3X) code in a different source file than the
          curses(3X) code, and/or #undef move() and erase() in the
          plot(3X) code.







































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