1EQN2GRAPH(1) General Commands Manual EQN2GRAPH(1)
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6 eqn2graph - convert an EQN equation into a cropped image
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9 eqn2graph [ -unsafe ] [ -format fmt ]
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12 Reads an EQN equation (one line) as input; produces an image file (by
13 default in Portable Network Graphics format) suitable for the Web as
14 output.
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16 Your input EQN code should not have the .EQ/.EN preamble that that nor‐
17 mally precedes it within groff(1) macros; nor do you need to have dol‐
18 lar-sign or other delimiters around the equation.
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20 The output image will be a black-on-white graphic clipped to the small‐
21 est possible bounding box that contains all the black pixels. By spec‐
22 ifying command-line options to be passed to convert(1) you can give it
23 a border, set the background transparent, set the image's pixel den‐
24 sity, or perform other useful transformations.
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26 This program uses eqn(1), groff(1), and the ImageMagick convert(1) pro‐
27 gram. These programs must be installed on your system and accessible
28 on your $PATH for eqn2graph to work.
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31 -unsafe
32 Run groff(1) in the `unsafe' mode enabling the PIC macro sh to
33 execute arbitrary commands. The default is to forbid this.
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35 -format fmt
36 Specify an output format; the default is PNG (Portable Network
37 Graphics). Any format that convert(1) can emit is supported.
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39 Command-line switches and arguments not listed above are passed to con‐
40 vert(1).
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43 /usr/share/groff/1.18.1.4/tmac/eqnrc
44 The eqn(1) initialization file.
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47 eqn(1), groff(1), gs(1), convert(1).
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50 Eric S. Raymond <esr@thyrsus.com>.
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54Groff Version 1.18.1.4 21 August 2002 EQN2GRAPH(1)