EQN2GRAPH(1) EQN2GRAPH(1)

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/1.18.1.1/tmac/eqnrc The eqn(1) initialization file.

SEE ALSO eqn(1), groff(1), gs(1), convert(1).

AUTHOR Eric S. Raymond <esr@thyrsus.com>.

Groff Version 1.18.1.1 21 August 2002 EQN2GRAPH(1)