The look of a component of a chart (see Section 2) is defined by a
collection of attributes. For example, an X or Y axis
includes an integer tic_len
attribute
that defines
the length of "tick" lines drawn perpendicular to the axis (see Section 6.2). It also has
an integer tic_interval
attribute that defines the separation
between tick lines. See Section 6.2 for the full list of Axis's attributes.
Attributes are usually specified by named arguments during component creation:
ax = axis.X(tic_len = 3, tic_interval = 50)
Attributes can also be changed after a component is created, but before
area.T.draw()
, the main drawing procedure (see Section 6), is called.
The below example has the same effect as the above.
ax = axis.X() ax.tic_len = 3 ax.tic_interval = 50
Each attribute has a default value that supposedly gives you a standard
look to the chart. You can change the default values through
chart_object
module. For example, the below example has the same
effect as the above, except that all X axes created in the future will
have the new default values.