NAME eqn2graph - convert an EQN equation into a cropped image
SYNOPSIS eqn2graph [ -unsafe ] [ -format fmt ]
DESCRIPTION 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 nor- mally precedes it within groff(1) macros; nor do you need to have dol- lar-sign or other delimiters around the equation.
The output image will be a black-on-white graphic clipped to the small- est possible bounding box that contains all the black pixels. By spec- ifying command-line options to be passed to convert(1) you can give it a border, set the background transparent, set the images pixel den- sity, or perform other useful transformations.
This program uses eqn(1), groff(1), and the ImageMagick convert(1) pro- gram. These programs must be installed on your system and accessible on your $PATH for eqn2graph to work.
OPTIONS -unsafe Run groff(1) in the unsafe mode enabling the PIC macro sh to execute arbitrary commands. The default is to forbid this.
-format fmt Specify an output format; the default is PNG (Portable Network Graphics). Any format that convert(1) can emit is supported.
Command-line switches and arguments not listed above are passed to con- vert(1).
FILES /usr/share/groff/18.104.22.168/tmac/eqnrc The eqn(1) initialization file.
SEE ALSO eqn(1), groff(1), gs(1), convert(1).
AUTHOR Eric S. Raymond <email@example.com>.
Groff Version 22.214.171.124 21 August 2002 EQN2GRAPH(1)