Zoom Menu

Use the Zoom Menu to specify the current zoom factor, orientation, and angle of the image in the current frame.

Align to Equatorial WCS

If a valid WCS is present, rotate and orient the image so that the WCS RA is horizontal and increases to the left and WCS DEC is vertical and increases up.

Zoom In

Zoom in the image by a factor of 2.

Zoom Out

Zoom out the image by a factor of 2.

Zoom to Fit Frame

Zoom to Fit Frame will calcuate the correct zoom factor to allow the entire data space to be displayed in the current frame.

Center Frame

Will pan to the center of the current frame. Please Note:

• For FITS Bin Tables-- The center is defined by the TLMAX, TLMIN, TALEN, or AXLEN FITS keywords if present. If not available, by the min and max of the data type.
• For FITS Mosaics-- The center is defined bye the DETSIZE FITS keyword.

None

The image axes are not inverted.

Invert X

Invert the X axis of the image of the current frame.

Invert Y

Invert the Y axis of the image of the current frame.

Invert XY

Invert both the X and Y axis of the image of the current frame.

Pan Zoom Rotate To

Invoke a dialog box to specify a view center, zoom factor, and rotation angle for the current frame.