GNUPlot Manual

66 gnuplot 4.0 36 SET-SHOW
the directories in fontpath are tried. Further documentation concerning the supported file formats is
included in the terminal postscript section of the documentation.
Syntax:
set fontpath {"pathlist1" {"pathlist2"...}}
show fontpath
Path names may be entered as single directory names, or as a list of path names separated by a platformspecific
path separator, eg. colon (’:’) on Unix, semicolon (’;’) on DOS/Windows/OS/2/Amiga platforms.
The show fontpath, save and save set commands replace the platform-specific separator with
a space character (’ ’) for maximum portability. If a directory name ends with an exclamation mark (’!’)
also the subdirectories of this directory are searched for font files.
If the environmental variable GNUPLOT FONTPATH is set, its contents are appended to fontpath. If
it is not set, a system dependent default value is used. It is set by testing several directories for existence
when using the fontpath the first time. Thus, the first call of set fontpath, show fontpath, save
fontpath, plot, or splot with embedded font files takes a little more time. If you want to save this time
you may set the environmental variable GNUPLOT FONTPATH since probing is switched off, then.
You can find out which is the default fontpath by using show fontpath.
However, show fontpath prints the contents of user defined fontpath and system fontpath separately.
Also, the save and save set commands save only the user specified parts of fontpath, for portability
reasons.
Many other terminal drivers access TrueType fonts via the gd library. For these drivers the font search
path is controlled by the environmental variable GDFONTPATH.
36.21 Format
The format of the tic-mark labels can be set with the set format command.
Syntax:
set format {} {""}
set format {} {’’}
show format
where is either x, y, z, cb, xy, x2, y2 or nothing (which is the same as xy). The length of
the string representing a tic mark (after formatting with ’printf’) is restricted to 100 characters. If the
format string is omitted, the format will be returned to the default "%g". For LaTeX users, the format
"$%g$" is often desirable. If the empty string "" is used, no label will be plotted with each tic, though
the tic mark will still be plotted. To eliminate all tic marks, use unset xtics or unset ytics.
Newline (\n) is accepted in the format string. Use double-quotes rather than single-quotes to enable
such interpretation. See also syntax (p. 26).
The default format for both axes is "%g", but other formats such as "%.2f" or "%3.0em" are often
desirable. Anything accepted by ’printf’ when given a double precision number, and accepted by the
terminal, will work. Some other options have been added. If the format string looks like a floating point
format, then gnuplot tries to construct a reasonable format.
Characters not preceded by "%" are printed verbatim. Thus you can include spaces and labels in your
format string, such as "%g m", which will put " m" after each number. If you want "%" itself, double
it: "%g %%".
See also set xtics (p. 149) for more information about tic labels, and set decimalsign (p. 63) for
how to use non-default decimal separators in numbers printed this way. See also
electron demo (electron.dem).
36.21.1 Format specifiers
The acceptable formats (if not in time/date mode) are: