plot(4)                             CLIX                             plot(4)



  NAME

    plot - Specifies graphics interface

  DESCRIPTION

    Files of this format are produced by functions described in plot and are
    interpreted for various devices by commands described in tplot.  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 function in plot.

    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].

    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 (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.  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.


    DASI   300            space (0, 0, 4096, 4096);



  2/94 - Intergraph Corporation                                              1

  plot(4)                             CLIX                             plot(4)



    DASI   300s           space (0, 0, 4096, 4096);
    DASI   450            space (0, 0, 4096, 4096);
    TEKTRONIX 4014        space (0, 0, 3129, 3120);
    Versatec plotter      space (0, 0, 2048, 2048);


  CAUTIONS

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

  RELATED INFORMATION

    Commands:  graph(1), tplot(1)

    Functions:  plot(3)

    Files:  gps(4)

    Miscellany:  term(4)
































  2                                              Intergraph Corporation - 2/94