eqn2graph - convert an EQN equation into a cropped image
] [ -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 equation.
The output image will be a black-on-white graphic clipped to the smallest
possible bounding 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), and the ImageMagick
(1) program. These programs must be installed on your system and
accessible on your $PATH for eqn2graph
- 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
- The eqn(1) initialization file.
Eric S. Raymond <email@example.com>.