Mac Developer Library Developer
Search

 

This manual page is for Mac OS X version 10.9

If you are running a different version of Mac OS X, view the documentation locally:

  • In Terminal, using the man(1) command

Reading manual pages

Manual pages are intended as a quick reference for people who already understand a technology.

  • To learn how the manual is organized or to learn about command syntax, read the manual page for manpages(5).

  • For more information about this technology, look for other documentation in the Apple Developer Library.

  • For general information about writing shell scripts, read Shell Scripting Primer.



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  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), groff(1), and the ImageMagick convert(1) program.  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 convert(1).

FILES
       /usr/share/groff/1.19.2/tmac/eqnrc  The eqn(1) initialization file.

ENVIRONMENT
       GROFF_TMPDIR
              The directory in which temporary files will be created.  If this is not set eqn2graph searches
              the environment variables TMPDIR, TMP, and TEMP (in that order).  Otherwise,  temporary  files
              will be created in /tmp.

SEE ALSO
       pic2graph(1), grap2graph(1), eqn(1), groff(1), gs(1), convert(1).

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



Groff Version 1.19.2                           27 October 2003                                  EQN2GRAPH(1)

Reporting Problems

The way to report a problem with this manual page depends on the type of problem:

Content errors
Report errors in the content of this documentation with the feedback links below.
Bug reports
Report bugs in the functionality of the described tool or API through Bug Reporter.
Formatting problems
Report formatting mistakes in the online version of these pages with the feedback links below.

Feedback