Top(axis)Topaxis - Highest axis value to display

Description:
This attribute gives the highest axis value to be displayed (for instance, by the astGridastGrid method).
Type:
Floating point.
Class Applicability:
FrameFrame
The default supplied by the Frame class is to display all axis values, without any limit.
SkyFrameSkyFrame
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.
Notes:
  • When specifying this attribute by name, it should be subscripted with the number of the Frame axis to which it applies.