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April, 26th. 2006:
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eqn2graph
Section: User Commands (1) Updated: 2 July 2023 Index
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Name
eqn2graph - convert an
eqn equation into a cropped image
.nr d-fallback 1
.nr d-fallback 1
Synopsis
[ -format~outpu-format]
[ conver-argument~...]
--help
-v
--version
Description
eqn2graph
reads a on-line
equation from the standard input and writes an image file,
by default in Portable Network Graphics (PNG) format,
to the standard output.
The input EQN code should
not
be preceded by the
.EQ
macro that normally precedes it within
macros;
nor do you need to have dolla-sign or other delimiters around the
equation.
Arguments not recognized by
eqn2graph
are passed to the ImageMagick or GraphicsMagick program
By specifying these, you can give your image a border,
set the image's pixel density,
or perform other useful transformations.
The output image is clipped using
convert's
-trim
option to the smallest possible bounding box that contains all the black
pixels.
Options
--help
displays a usage message,
while
-v
and
--version
show version information;
all exit afterward.
- -format~outpu-format
-
Write the image in
outpu-format,
which must be understood by
convert;
the default is PNG.
Environment
- GROFF_TMPDIR
-
TMPDIR
TMP
TEMP
These environment variables are searched in the given order to determine
the directory where temporary files will be created.
If none are set,
/tmp
is used.
Authors
eqn2graph
was written by
Eric S. Raymond
based on a recipe for
by W. Richard Stevens.
See also
Index
- Name
-
- Synopsis
-
- Description
-
- Options
-
- Environment
-
- Authors
-
- See also
-
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