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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/1.19.2/tmac/dvi.tmac.

       The dvi file generated by grodvi can be printed by any correctly-written dvi driver.  The troff draw-ing drawing
       ing  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  diago-nally diagonally
              nally  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 pro-duced produced
       duced by \special{anything} 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 following 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 correspond-ing corresponding
       ing 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 equivalent 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 sur-prisingly, surprisingly,
       prisingly, 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.

FILES
       /usr/share/groff/1.19.2/font/devdvi/DESC
              Device description file.

       /usr/share/groff/1.19.2/font/devdvi/F
              Font description file for font F.

       /usr/share/groff/1.19.2/tmac/dvi.tmac
              Macros for use with grodvi.

       /usr/share/groff/1.19.2/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 res-olution resolution
       olution 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 1.19.2                           1 October 2004                                      GRODVI(1)