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GRODVI(1)		    General Commands Manual		     GRODVI(1)

       grodvi -	convert	groff output to	TeX dvi	format

       grodvi [	-dv ] [	-wn ] [	-Fdir ]	[ files...  ]

       It is possible to have whitespace between a command line	option and its

       grodvi is a driver for groff that produces TeX dvi format.  Normally it
       should  be run by groff -Tdvi.  This will run troff -Tdvi; it will also
       input the macros	/usr/share/tmac/dvi.tmac; if the input is  being  pre-
       processed with eqn it will also input /usr/share/groff_font/devdvi/eqn-

       The dvi file generated by grodvi	can be printed by any  correctly-writ-
       ten dvi driver.	The troff drawing primitives are implemented using the
       tpic version 2 specials.	 If the	driver does not	support	these, the  \D
       commands	will not produce any output.

       There is	an additional drawing command available:

       \D'R dh dv'
	      Draw a rule (solid black rectangle), with	one corner at the cur-
	      rent position, and the diagonally	opposite corner	at the current
	      position	+(dh,dv).   Afterwards the current position will be at
	      the opposite corner.  This produces a rule in the	dvi  file  and
	      so  can  be printed even with a driver that does not support the
	      tpic specials unlike the other \D	commands.

       The groff command \X'anything' is translated into the same  command  in
       the  dvi	 file  as would	be produced by \special{anything} in TeX; any-
       thing may not contain a newline.

       Font files for grodvi can be created from tfm files using  tfmtodit(1).
       The  font description file should contain the following additional com-

       internalname name
		     The name of the tfm file (without the .tfm	extension)  is

       checksum	n    The checksum in the tfm file is n.

       designsize n  The designsize in the tfm file is n.

       These are automatically generated by tfmtodit.

       In  troff  the  \N  escape sequence can be used to access characters by
       their position in the corresponding tfm file; all characters in the tfm
       file can	be accessed this way.

       -d     Do  not  use tpic	specials to implement drawing commands.	 Hori-
	      zontal and vertical lines	will be	implemented by	rules.	 Other
	      drawing commands will be ignored.

       -v     Print the	version	number.

       -wn    Set the default line thickness to	n thousandths of an em.

       -Fdir  Prepend directory	dir/devdvi to the search path for font and de-
	      vice description files.

	      Device description file.

	      Font description file for	font F.

	      Macros for use with grodvi.

       Dvi files produced by grodvi use	a different  resolution	 (57816	 units
       per  inch) to those produced by TeX.  Incorrectly written drivers which
       assume the resolution used by TeX, rather  than	using  the  resolution
       specified in the	dvi file will not work with grodvi.

       When  using  the	 -d  option with boxed tables, vertical	and horizontal
       lines can sometimes protrude by one pixel.  This	is  a  consequence  of
       the way TeX requires that the heights and widths	of rules be rounded.

       tfmtodit(1),    groff(1),    troff(1),	groff_out(5),	groff_font(5),

Groff Version 1.17.2		 6 August 2001			     GRODVI(1)


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