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<H2><A NAME="SECTION020142000000000000000"></A>
<A NAME="gd"></A><A NAME="980"></A>
<A NAME="fonts_gd"></A><A NAME="982"></A>
<A NAME="983"></A>
<A NAME="984"></A>
<A NAME="985"></A>
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Gd (png, gif, jpeg terminals)
</H2>
Font handling for the png, gif, and jpeg terminals is done by the external
library libgd. Five basic fonts are provided directly by libgd. These are
<B>tiny</B> (5x8 pixels), <B>small</B> (6x12 pixels), <B>medium</B>, (7x13 Bold), <B>large</B>
(8x16) or <B>giant</B> (9x15 pixels). These fonts cannot be scaled or rotated.
Use one of these keywords instead of the <B>font</B> keyword. E.g.
<BR>
<PRE>
set term png tiny
</PRE>
<BR>
<P>
On most systems libgd also provides access to Adobe Type 1 fonts (*.pfa) and
TrueType fonts (*.ttf). You must give the name of the font file, not the name
of the font inside it, in the form <TT>"</TT>4#4face5#5 {,4#4pointsize5#5}<TT>"</TT>.
4#4face5#5 is either the full pathname to the font file, or the first part of a
filename in one of the directories listed in the GDFONTPATH environmental
variable. That is, 'set term png font <TT>"</TT>Face<TT>"</TT>' will look for a font file named
either 4#4somedirectory5#5/Face.ttf or 4#4somedirectory5#5/Face.pfa.
For example, if GDFONTPATH contains <B>/usr/local/fonts/ttf:/usr/local/fonts/pfa</B>
then the following pairs of commands are equivalent
<BR>
<PRE>
set term png font "arial"
set term png font "/usr/local/fonts/ttf/arial.ttf"
set term png font "Helvetica"
set term png font "/usr/local/fonts/pfa/Helvetica.pfa"
</PRE>
<BR>
To request a default font size at the same time:
<BR>
<PRE>
set term png font "arial,11"
</PRE>
<BR>
<P>
Both TrueType and Adobe Type 1 fonts are fully scalable and rotatable.
If no specific font is requested in the <TT>"</TT>set term<TT>"</TT> command, gnuplot checks
the environmental variable GNUPLOT_DEFAULT_GDFONT to see if there is a
preferred default font.
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2010-08-17
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