GNUPlot Manual

36 SET-SHOW gnuplot 4.0 113
set terminal gnugraph type hpgl size "a4"
set terminal gnugraph size "a4,xoffset=-5mm,yoffset=2.0cm" type pnm
There is a non-GNU version of the gnugraph driver which cannot be compiled unless this version is
left out.
36.59.26 Gpic
The gpic terminal driver generates GPIC graphs in the Free Software Foundations’s "groff" package.
The default size is 5 x 3 inches. The only option is the origin, which defaults to (0,0).
Syntax:
set terminal gpic { }
where x and y are in inches.
A simple graph can be formatted using
groff -p -mpic -Tps file.pic > file.ps.
The output from pic can be pipe-lined into eqn, so it is possible to put complex functions in a graph
with the set label and set {x/y}label commands. For instance,
set ylab ’@space 0 int from 0 to x alpha ( t ) roman d t@’
will label the y axis with a nice integral if formatted with the command:
gpic filename.pic | geqn -d@@ -Tps | groff -m[macro-package] -Tps
> filename.ps
Figures made this way can be scaled to fit into a document. The pic language is easy to understand, so
the graphs can be edited by hand if need be. All co-ordinates in the pic-file produced by gnuplot are
given as x+gnuplotx and y+gnuploty. By default x and y are given the value 0. If this line is removed
with an editor in a number of files, one can put several graphs in one figure like this (default size is
5.0x3.0 inches):
.PS 8.0
x=0;y=3
copy "figa.pic"
x=5;y=3
copy "figb.pic"
x=0;y=0
copy "figc.pic"
x=5;y=0
copy "figd.pic"
.PE
This will produce an 8-inch-wide figure with four graphs in two rows on top of each other.
One can also achieve the same thing by the command
set terminal gpic x y
for example, using
.PS 6.0
copy "trig.pic"
.PE
36.59.27 Gpr
The gpr terminal driver supports the Apollo Graphics Primitive Resource for a fixed-size window. It
has no options.
If a variable window size is desired, use the apollo terminal instead.