GNUPlot Manual

36 SET-SHOW gnuplot 4.0 133
set origin x01,y01
set size xs,ys
plot ...
...
set origin x02,y02
plot ...
set nomultiplot
See set multiplot (p. 78) for further information.
The second version is the [x,y] option for the driver itself. The advantage of this implementation is that
everything is scaled and placed automatically without the need for setting origins and sizes; the graphs
keep their natural x/y proportions of 3/2 (or whatever is fixed by set size).
If both multiplot methods are selected, the standard method is chosen and a warning message is given.
Examples of single plots (or standard multiplot):
set terminal tgif
# defaults
set terminal tgif "Times-Roman" 24
set terminal tgif landscape
set terminal tgif landscape solid
Examples using the built-in multiplot mechanism:
set terminal tgif portrait [2,4] # portrait; 2 plots in the x-
# and 4 in the y-direction
set terminal tgif [1,2] # portrait; 1 plot in the x-
# and 2 in the y-direction
set terminal tgif landscape [3,3] # landscape; 3 plots in both
# directions
36.59.69 Tkcanvas
This terminal driver generates Tk canvas widget commands based on Tcl/Tk (default) or Perl. To use
it, rebuild gnuplot (after uncommenting or inserting the appropriate line in "term.h"), then
gnuplot> set term tkcanvas {perltk} {interactive}
gnuplot> set output ’plot.file’
After invoking "wish", execute the following sequence of Tcl/Tk commands:
% source plot.file
% canvas .c
% pack .c
% gnuplot .c
Or, for Perl/Tk use a program like this:
use Tk;
my $top = MainWindow->new;
my $c = $top->Canvas->pack;
my $gnuplot = do "plot.pl";
$gnuplot->($c);
MainLoop;
The code generated by gnuplot creates a procedure called "gnuplot" that takes the name of a canvas as
its argument. When the procedure is called, it clears the canvas, finds the size of the canvas and draws
the plot in it, scaled to fit.
For 2-dimensional plotting (plot) two additional procedures are defined: "gnuplot plotarea" will return
a list containing the borders of the plotting area "xleft, xright, ytop, ybot" in canvas screen coordinates,
while the ranges of the two axes "x1min, x1max, y1min, y1max, x2min, x2max, y2min, y2max" in