GRODVI(1) 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/share/groff/1.18.1.1/tmac/dvi.tmac; if the input is being preprocessed with eqn it
will also input /usr/share/groff/1.18.1.1/font/devdvi/eqnchar.
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 spe-
cials 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; anything may not contain a newline.
For inclusion of EPS image files, grodvi loads pspic.tmac automatically, providing the
PSPIC macro. Please check grops (1) for a detailed description of this macro.
Font files for grodvi can be created from tfm files using tfmtodit(1). The font descrip-
tion 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
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. Horizontal 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, usually 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 bet-
ter coverage of groff symbols. Note that ec.tmac must be called before any language-spe-
cific files; it doesn't take care of hcode values.
FILES
/usr/share/groff/1.18.1.1/font/devdvi/DESC
Device description file.
/usr/share/groff/1.18.1.1/font/devdvi/F
Font description file for font F.
/usr/share/groff/1.18.1.1/tmac/dvi.tmac
Macros for use with grodvi.
/usr/share/groff/1.18.1.1/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 1.18.1.1 16 September 2002 GRODVI(1)
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