GNUPlot Manual
GNUPlot Manual
GNUPlot Manual
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56 gnuplot 4.0 36 SET-SHOW<br />
36.5 Bmargin<br />
The command set bmargin sets the size of the bottom margin. Please see set margin (p. 77) for<br />
details.<br />
36.6 Border<br />
The set border and unset border commands control the display of the graph borders for the plot<br />
and splot commands. Note that the borders do not necessarily coincide with the axes; with plot they<br />
often do, but with splot they usually do not.<br />
Syntax:<br />
set border { { {linestyle | ls }<br />
| {linetype | lt }<br />
{linewidth | lw } } }<br />
unset border<br />
show border<br />
With a splot displayed in an arbitrary orientation, like set view 56,103, the four corners of the x-y<br />
plane can be referred to as "front", "back", "left" and "right". A similar set of four corners exist for<br />
the top surface, of course. Thus the border connecting, say, the back and right corners of the x-y plane<br />
is the "bottom right back" border, and the border connecting the top and bottom front corners is the<br />
"front vertical". (This nomenclature is defined solely to allow the reader to figure out the table that<br />
follows.)<br />
The borders are encoded in a 12-bit integer: the bottom four bits control the border for plot and the<br />
sides of the base for splot; the next four bits control the verticals in splot; the top four bits control the<br />
edges on top of the splot. In detail, should be the sum of the appropriate entries from the<br />
following table:<br />
Graph Border Encoding<br />
Bit plot splot<br />
1 bottom bottom left front<br />
2 left bottom left back<br />
4 top bottom right front<br />
8 right bottom right back<br />
16 no effect left vertical<br />
32 no effect back vertical<br />
64 no effect right vertical<br />
128 no effect front vertical<br />
256 no effect top left back<br />
512 no effect top right back<br />
1024 no effect top left front<br />
2048 no effect top right front<br />
Various bits or combinations of bits may be added together in the command.<br />
The default is 31, which is all four sides for plot, and base and z axis for splot.<br />
Using the optional , and specifiers, the way the border lines are<br />
drawn can be influenced (limited by what the current terminal driver supports).<br />
For plot, tics may be drawn on edges other than bottom and left by enabling the second axes – see set<br />
xtics (p. 149) for details.<br />
If a splot draws only on the base, as is the case with "unset surface; set contour base", then the<br />
verticals and the top are not drawn even if they are specified.<br />
The set grid options ’back’, ’front’ and ’layerdefault’ also control the order in which the border lines<br />
are drawn with respect to the output of the plotted data.<br />
Examples: