GNUPlot Manual
GNUPlot Manual
GNUPlot Manual
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36 SET-SHOW gnuplot 4.0 73<br />
Some or all of the key may be outside of the graph boundary, although this may interfere with other<br />
labels and may cause an error on some devices. If you use the keywords outside or below, gnuplot<br />
makes space for the keys and the graph becomes smaller. Putting keys outside to the right, they occupy<br />
as few columns as possible, and putting them below, as many columns as possible (depending of the<br />
length of the labels), thus stealing as little space from the graph as possible.<br />
When using the TeX or PostScript drivers, or similar drivers where formatting information is embedded<br />
in the string, gnuplot is unable to calculate correctly the width of the string for key positioning. If<br />
the key is to be positioned at the left, it may be convenient to use the combination set key left Left<br />
reverse. The box and gap in the grid will be the width of the literal string.<br />
If splot is being used to draw contours, the contour labels will be listed in the key. If the alignment of<br />
these labels is poor or a different number of decimal places is desired, the label format can be specified.<br />
See set clabel (p. 58) for details.<br />
Examples:<br />
This places the key at the default location:<br />
set key default<br />
This disables the key:<br />
unset key<br />
This places a key at coordinates 2,3.5,2 in the default (first) coordinate system:<br />
set key 2,3.5,2<br />
This places the key below the graph:<br />
set key below<br />
This places the key in the bottom left corner, left-justifies the text, gives it a title, and draws a box<br />
around it in linetype 3:<br />
set key left bottom Left title ’Legend’ box 3<br />
36.29 Label<br />
Arbitrary labels can be placed on the plot using the set label command.<br />
Syntax:<br />
set label {}<br />
{ {""{,}} {, ...}} }<br />
{at }<br />
{left | center | right}<br />
{norotate | rotate {by }}<br />
{font "{,}"}<br />
{front | back}<br />
{textcolor }<br />
{point {offset x, y} | nopoint}<br />
unset label {}<br />
show label<br />
The is specified by either x,y or x,y,z, and may be preceded by first, second, graph, or<br />
screen to select the coordinate system. See coordinates (p. 18) for details.<br />
The tag is an integer that is used to identify the label. If no is given, the lowest unused tag<br />
value is assigned automatically. The tag can be used to delete or modify a specific label. To change<br />
any attribute of an existing label, use the set label command with the appropriate tag, and specify the<br />
parts of the label to be changed.<br />
The can optionally contain numbers, generated by replacement of printf()-like format<br />
specifiers contained in . The number to be used is given by the following the