Top(axis)

Highest axis value to display

This attribute gives the highest axis value to be displayed (for instance, by the AST_GRID method).

Type:

Floating point.

The default supplied by the Frame class is to display all axis values, without any limit.

The SkyFrame class re-defines the default Top value to

$+$ 90 degrees for latitude axes, and 180 degrees for co-latitude axes. The default for longitude axes is to display all axis values.

When specifying this attribute by name, it should be subscripted with the number of the Frame axis to which it applies.