TUI:Telescope:Nudger window

This widget allows you to make small offsets using a graphical nudger. It is primarily intended to allow Echelle users to manually guide.

The controls are as follows:

• Offset type: one of "Object", "Object XY", "Boresight", "Calibration", "Calibration XY", "Guide" or "Guide XY". These are described in Offset Types.
• Max offset: the maximum offset you can command using the graphical nudger to the right.
• Offset amount: the amount of the current or most recent offset.
• Graphical nudger: command the offset using the square region to the right:
  • Click to select an amount to offset. Drag the mouse to change the amount.
  • Release the mouse button to apply the offset.
  • To cancel (without moving the telescope) drag the mouse outside the square before releasing the mouse button. (The arrow should disappear.)
• Status Bar the status bar along the bottom displays help and the status of the last command.