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GRODVI(1)		    General Commands Manual		     GRODVI(1)

NAME
       grodvi -	convert	groff output to	TeX dvi	format

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

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

DESCRIPTION
       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/local/share/groff/1.18.1/tmac/dvi.tmac;  if  the
       input  is  being	 preprocessed  with  eqn  it  will also	input /usr/lo-
       cal/share/groff/1.18.1/font/devdvi/eqnchar.

       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.

       For inclusion of	EPS image files,  grodvi  loads	 pspic.tmac  automati-
       cally,  providing  the  PSPIC  macro.  Please check grops (1) for a de-
       tailed description of this macro.

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

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

       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.

       The default color for \m	and \M is black.  Currently, the drawing color
       for \D commands is always black,	and fill color values  are  translated
       to gray.

       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.

OPTIONS
       -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.  If
	      this option isn't	specified,  the	 line  thickness  defaults  to
	      0.04 em.

       -Fdir  Prepend  directory  dir/devname  to the search path for font and
	      device description files;	name is	the name of the	 device,  usu-
	      ally dvi.

USAGE
       There  are styles called	R, I, B, and BI	mounted	at font	positions 1 to
       4.  The fonts are grouped into families T and H having members in  each
       of these	styles:

	      TR     CM	Roman (cmr10)

	      TI     CM	Text Italic (cmti10)

	      TB     CM	Bold Extended Roman (cmbx10)

	      TBI    CM	Bold Extended Text Italic (cmbxti10)

	      HR     CM	Sans Serif (cmss10)

	      HI     CM	Slanted	Sans Serif (cmssi10)

	      HB     CM	Sans Serif Bold	Extended (cmssbx10)

	      HBI    CM	Slanted	Sans Serif Bold	Extended (cmssbxo10)

       There are also the following fonts which	are not	members	of a family:

	      CW     CM	Typewriter Text	(cmtt10)

	      CWI    CM	Italic Typewriter Text (cmitt10)

       Special	fonts  are  MI (cmmi10), S (cmsy10), EX	(cmex10), and, perhaps
       surprisingly, TR, TI, and CW, due to the	different  font	 encodings  of
       text fonts.  For	italic fonts, CWI is used instead of CW.

       Finally,	 the  symbol  fonts  of	 the American Mathematical Society are
       available as special fonts SA (msam10)  and  SB	(msbm10).   These  two
       fonts are not mounted by	default.

       Using  the  option  -mec	(loading the file ec.tmac) EC and TC fonts are
       used.  The design of the	EC family is very similar to that  of  the  CM
       fonts; additionally, they give a	much better coverage of	groff symbols.
       Note that ec.tmac must be called	before any language-specific files; it
       doesn't take care of hcode values.

FILES
       /usr/local/share/groff/1.18.1/font/devdvi/DESC
	      Device description file.

       /usr/local/share/groff/1.18.1/font/devdvi/F
	      Font description file for	font F.

       /usr/local/share/groff/1.18.1/tmac/dvi.tmac
	      Macros for use with grodvi.

       /usr/local/share/groff/1.18.1/tmac/ec.tmac
	      Macros to	switch to EC fonts.

BUGS
       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.

SEE ALSO
       tfmtodit(1),   groff(1),	  troff(1),    groff_out(5),	groff_font(5),
       groff_char(7)

Groff Version 1.18.1	       16 September 2002		     GRODVI(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | USAGE | FILES | BUGS | SEE ALSO

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