vp(4) [v7 man page]

VP(4)							     Kernel Interfaces Manual							     VP(4)

NAME

       vp - Versatec printer-plotter

DESCRIPTION

       Vp0  is	the  interface	to  a Versatec D1200A printer-plotter with a Versatec C-PDP11(DMA) controller.	Ordinarily bytes written on it are
       interpreted as ASCII characters and printed.  As a printer, it writes 64 lines of 132 characters each on 11 by 8.5 inch paper.	Only  some
       of the ASCII control characters are interpreted.

       NL     performs the usual new-line function, i.e.  spaces up the paper and resets to the left margin.  It is ignored however following a CR
	      which ends a non-empty line.

       CR     is ignored if the current line is empty but is otherwise like NL.

       FF     resets to the left margin and then to the top of the next page.

       EOT    resets to the left margin, advances 8 inches, and then performs a FF.

       The ioctl(2) system call may be used to change the mode of the device.  Only the first word of the 3-word argument structure is used.   The
       bits mean:

       0400   Enter simultaneous print/plot mode.
       0200   Enter plot mode.
       0100   Enter print mode (default on open).
       040    Send remote terminate.
       020    Send remote form-feed.
       010    Send remote EOT.
       04     Send remote clear.
       02     Send remote reset.

       On  open a reset, clear, and form-feed are performed automatically.  Notice that the mode bits are not encoded, so that it is required that
       exactly one be set.

       In plot mode each byte is interpreted as 8 bits of which the high-order is plotted to the left; a `1' leaves a visible dot.  A full line of
       dots is produced by 264 bytes; lines are terminated only by count or by a remote terminate function.  There are 200 dots per inch both ver-
       tically and horizontally.

       When simultaneous print-plot mode is entered exactly one line of characters, terminated by NL, CR, or the remote terminate function, should
       be  written.  Then the device enters plot mode and at least 20 lines of plotting bytes should be sent.  As the line of characters (which is
       20 dots high) is printed, the plotting bytes overlay the characters.  Notice that it is impossible to print characters  on  baselines  that
       differ by fewer than 20 dot-lines.

       In print mode lines may be terminated either with an appropriate ASCII character or by using the remote terminate function.

FILES

       /dev/vp0

SEE ALSO

       opr(1)

																	     VP(4)

Check Out this Related Man Page

PLOT(1G)																  PLOT(1G)

NAME

       plot - graphics filters

SYNOPSIS

       plot [ -Tterminal ] [ -rresolution ] [ files... ]

DESCRIPTION

       These  commands	read  plotting	instructions (see plot(5)) from the standard input or the specified files, and in general produce plotting
       instructions suitable for a particular terminal on the standard output.	The -r flag may be used to specify the device's output	resolution
       (currently only the Imagen laser printer understands this option).

       If no terminal type is specified, the environment parameter $TERM (see environ(7)) is used.  Known terminals are:

       4013   Tektronix 4013 storage scope.

       4014 or tek
	      Tektronix  4014  or  4015  storage  scope  with Enhanced Graphics Module.  (Use 4013 for Tektronix 4014 or 4015 without the Enhanced
	      Graphics Module).

       450    DASI Hyterm 450 terminal (Diablo mechanism).

       300    DASI 300 or GSI terminal (Diablo mechanism).

       300S   DASI 300S terminal (Diablo mechanism).

       aed    AED 512 color graphics terminal.

       bitgraph or bg
	      BBN bitgraph graphics terminal.

       imagen or ip
	      Imagen laser printer (default 240 dots-per-inch resolution).

       crt    Any crt terminal capable of running vi(1).

       dumb   Dumb terminals without cursor addressing or line printers.

       vt125  DEC vt125 terminal.

       hp2648 or hp or hp8
	      Hewlett Packard 2648 graphics terminal.

       ver    Versatec D1200A printer-plotter.

       var    Benson Varian printer-plotter.

	      These versions of plot use the -g option of lpr(1) to send the result directly to the plotter device rather  than  to  the  standard
	      output.

FILES

       /usr/bin/t4013
       /usr/bin/tek
       /usr/bin/t450
       /usr/bin/t300
       /usr/bin/t300s
       /usr/bin/aedplot
       /usr/bin/bgplot
       /usr/bin/crtplot
       /usr/bin/dumbplot
       /usr/bin/gigiplot
       /usr/bin/hpplot
       /usr/bin/implot
       /usr/ucb/lpr

SEE ALSO

       plot(3X), plot(3F), plot(5), lpr(1)

7th Edition							September 21, 1985							  PLOT(1G)

Linux and UNIX Man Pages

vp(4) [v7 man page]

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