GRODVI(1)                                                                                                              GRODVI(1)



NAME
       grodvi - convert groff output to TeX dvi format

SYNOPSIS
       grodvi [ -dlv ] [ -Fdir ] [ -ppapersize ] [ -wn ] [ 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 in /usr/share/groff/1.20.1/tmac/dvi.tmac.

       The dvi file generated by grodvi can be printed by any correctly-written 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 current 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{any-
       thing} in TeX; anything may not contain a newline.

       For inclusion of EPS image files, -Tdvi  loads  pspic.tmac  automatically,  providing  the  PSPIC  macro.   Please  check
       groff_tmac(5) for a detailed description.

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

       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.

       By design, the DVI format doesn't care about physical dimensions of the output medium.  Instead, grodvi emits the equiva-
       lent  to  TeX's  \special{papersize=width,length} on the first page; dvips (and possibly other DVI drivers) then sets the
       page size accordingly.  If either the page width or length is not positive, no papersize special is output.

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

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

       -l     Specify landscape orientation.

       -ppapersize
              Specify paper dimensions.  This overrides the papersize, paperlength, and paperwidth commands in the DESC file; it
              accepts the same arguments as the papersize command (see groff_font(5) for details).

       -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.

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), SC (cmtex10, only for CW), 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 (which loads the file ec.tmac) provides the EC and TC fonts.  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.

ENVIRONMENT
       GROFF_FONT_PATH
              A  list of directories in which to search for the devname directory in addition to the default ones.  See troff(1)
              and groff_font(5) for more details.

FILES
       /usr/share/groff/1.20.1/font/devdvi/DESC
              Device description file.

       /usr/share/groff/1.20.1/font/devdvi/F
              Font description file for font F.

       /usr/share/groff/1.20.1/tmac/dvi.tmac
              Macros for use with grodvi.

       /usr/share/groff/1.20.1/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_tmac(5)



Groff Version 1.20.1                                     9 January 2009                                                GRODVI(1)