plot(5)                          DG/UX 5.4.2                         plot(5)


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
       plot(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 plot(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.

       a  Arc: the first four bytes give the center, the next four give the
          starting point, and the last four give the end point of a circular
          arc.  The least significant coordinate of the end point is used
          only to determine the quadrant.  The arc is drawn counter-
          clockwise.

       c  Circle: the first four bytes give the center of the circle, the
          next two the radius.

       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 in plot 4014 and plot ver.

       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



Licensed material--property of copyright holder(s)                         1

plot(5)                          DG/UX 5.4.2                         plot(5)


          plot(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.

          4014      space(0, 0, 3120, 3120);

          ver       space(0, 0, 2048, 2048);

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

          450       space(0, 0, 4096, 4096);

SEE ALSO
       graph(1G), plot(1G), plot(3X).











































Licensed material--property of copyright holder(s)                         2