7.9. - pk, zk draw key
draws the key, entered using
gk, in the upper-left corner of
the plot window or in another position you specify.
pk pk horz_offset vert_offset pk xbox ybox zbox or zk [same options]With no parameters, the key will be drawn starting at the default or the previously used position. You can use the plotter controls to move the pen to another position before drawing the key, or you can position the key by entering values after the
pk or
zk command.
In 2D mode, if offsets are given as arguments, the key will be drawn
horz_offset
centimeters to the right and
vert_offset
centimeters down from the upper-left corner of the window.
If one
or both of the values entered for the offsets end with the letter
u, the numbers are interpreted in data units corresponding to
the axis numbering rather than in centimeters.
In 3D mode, offsets not in data units are in box units (see
bo, Chapter 5).
Box units run from 0 to 1 for positions inside the 3D
cube.
At present, the 3D key can only be placed in the
x-z
plane.
The default starting position for the key in 2D mode is
h
= 0.125 ×
x_length
and
v
= 0.125 ×
y_length,
where
x_length
and
y_length
are
the dimensions of the plot window.
The default starting position for
the key in 3D mode in box units is
x
= 0.125,
y
= 0 and
z
= 0.125.
When the key is drawn based on the last-used position, that location is remembered in terms of its actual place in the plot window, not in data units.
The position used last is forgotten when the window is changed (
wi) or the plot is turned (tu). The spacing between lines can be adjusted using the set parameter command (see Chapter 6). The default spacing is 1.5 times the character height.