Legend
By default, the contours are labeled with the actual contour level, using
three significant digits. If \-AXES
is used, then no legend is allowed.
If the \LEGEND
qualifier is used,
then the contours are labeled with an integer index and the list of indices
corresponding to the actual contour levels, the legend, is plotted along
the right side of the axes. If areas and/or volumes are requested, using
\AREAS
and/or \VOLUMES
, these values will also appear in the legend.
If you zoom in on a contour plot, by setting the axis scales beforehand,
and you use the \PARTIAL
qualifier as well as the \AREAS
qualifier,
then the areas will be percentages of the area currently showing on the
graph. By default, the areas are percentages of the total area.
To add more contours to a contour plot, re-issue the same contour command
with the \CONTINUE
qualifier and
the legend will be continued from where it left off. You must have used the
\-RESET
qualifier on the previous CONTOUR
command if you intend to
use \CONTINUE
on a succeeding CONTOUR
command.
Legend size
The size of the legend characters is controlled with the
LEGENDSIZE
characteristic. The default value of %LEGENDSIZE = 3
.
Axis relocation
The legend requires the right end of the x-axis to be set to
75%
of the window, that is,
%XUPPERAXIS
is set to 75
.
By default, %XUPPERAXIS
is reset to its former value after the
CONTOUR
command is finished. If the \-RESET
qualifier is used, the axis location will not be reset.