1 .\" Id: eqn2graph.man,v 1.4 2003/10/28 07:46:23 wlemb Exp
2 .\" This documentation is released to the public domain.
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13 .TH EQN2GRAPH @MAN1EXT@ "@MDATE@" "Groff Version @VERSION@"
16 eqn2graph \- convert an EQN equation into a cropped image
30 Reads an EQN equation (one line) as input; produces an image
31 file (by default in Portable Network Graphics format) suitable for the
34 Your input EQN code should \fInot\fR have the \&.EQ/.EN preamble that
35 that normally precedes it within
37 macros; nor do you need to have dollar-sign or other delimiters
40 The output image will be a black-on-white graphic clipped to the
41 smallest possible bounding box that contains all the black pixels.
42 By specifying command-line options to be passed to
44 you can give it a border, set the background transparent, set the
45 image's pixel density, or perform other useful transformations.
48 .BR @g@eqn (@MAN1EXT@),
49 .BR groff (@MAN1EXT@),
53 These programs must be installed on your system and accessible on your
54 $PATH for \fBeqn2graph\fR to work.
62 in the `unsafe' mode enabling the PIC macro
64 to execute arbitrary commands.
65 The default is to forbid this.
68 Specify an output format; the default is PNG (Portable Network Graphics).
71 can emit is supported.
73 Command-line switches and arguments not listed above are passed to
78 .Tp \w'\fB@MACRODIR@/eqnrc'u+2n
81 .BR @g@eqn (@MAN1EXT@)
88 The directory in which temporary files will be created.
91 searches the environment variables
97 Otherwise, temporary files will be created in
102 .BR pic2graph (@MAN1EXT@),
103 .BR grap2graph (@MAN1EXT@),
104 .BR @g@eqn (@MAN1EXT@),
105 .BR groff (@MAN1EXT@),
111 Eric S. Raymond <esr@thyrsus.com>.