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eqn2graph - convert an EQN equation into a cropped image
eqn2graph [ -unsafe ] [ -format fmt ]
Reads an EQN equation (one line) as input; produces an image file (by default in Portable
Network Graphics format) suitable for the Web as output.
Your input EQN code should not have the .EQ/.EN preamble that that normally precedes it
within groff(1) macros; nor do you need to have dollar-sign or other delimiters around the
The output image will be a black-on-white graphic clipped to the smallest possible bound-
ing box that contains all the black pixels. By specifying command-line options to be
passed to convert(1) you can give it a border, set the background transparent, set the
image's pixel density, or perform other useful transformations.
This program uses eqn(1), groff(1), and the ImageMagick convert(1) program. These pro-
grams must be installed on your system and accessible on your $PATH for eqn2graph to work.
Run groff(1) in the `unsafe' mode enabling the PIC macro sh to execute arbitrary
commands. The default is to forbid this.
Specify an output format; the default is PNG (Portable Network Graphics). Any for-
mat that convert(1) can emit is supported.
Command-line switches and arguments not listed above are passed to convert(1).
/usr/share/groff/1.18.1/tmac/eqnrc The eqn(1) initialization file.
eqn(1), groff(1), gs(1), convert(1).
Eric S. Raymond <email@example.com>.
Groff Version 1.18.1 Nov 2003 EQN2GRAPH(1)
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