!Overview
This widget allows the user to read in a local FITS image
file, and prepare it for ingestion into the SunGlobe
program.  The image can be scaled, and a color table can be
applied.

!Read file
The action of this button depends on which option was
selected in SunGlobe.  Select the relevant subcategory from
the menu.

!!Read in local FITS file
This button calls XPICKFILE to select and read in a local
FITS file.

!!Read from Solar Orbiter archive
This button brings up a menu to select a Solar Orbiter FITS
file closest to the target date, similar to the way that
Helioviewer images are selected.

!!!Instrument
Select the instrument (e.g. EUI).

!!!Measurement
Select the measurement, based on the selected instrument
(e.g. EUI/FSI/171).

!!!Target date
The target date to search for.  The closest image to this
target date will be returned.

!!!Date/Time
The Date and Time buttons allow the user to change the
target date and time.  This only affects the search of the
Helioviewer database--the target date for differential
rotation and spacecraft pointing will be unaffected.

!!!Closest date
This displays the closest date found in the Helioviewer
database to the target date.

!!!#days
This displays the difference in days between the image date
and the target date.

!!!Cancel
Cancels the selection.

!!!Select
Returns the selection to the SunGlobe program so that the
image can be read in.

!Adjust color table
This button calls XLOADCT to select and adjust the color
table to apply to the image.

!Check pointing
Draws a circle on the image to show the position of the limb
based on the current pointing values.

!Fit limb
Activates the limb fitting section on the right side.

!!Selecting limb points
In the "Fit limb" mode, points can be selected on the image
to use in fitting the limb.  The selected points are
overplotted on the image, and the pixel values appear as a
list on the right.

!!Remove last point
Removes the last selected point.

!!Hold radius constant
With this option selected, only the center position is
fitted, and the solar radius (i.e. the plate scale) is held
constant.  Otherwise, all three parameters describing the
limb circle are fitted.

!!Cancel
Cancels fitting the limb.  All previously entered points are
discarded.

!!Fit points
Fit for the position of the limb based on the selected
points.  This fit can be either accepted, or one can
continue with selecting points to fit.

!!Use microscope
Activate the microscope window for higher accuracy.  The
portion of the image around the cursor is shown at full
resolution in a smaller window.

Caution: Using this option may slow down the program.

!Image label
A text label used for identifying the image within
SunGlobe.  By default this is the filename.  Only the first
eight or so characters will actually be displayed.

!Image minumum, maximum
These fields allow one to set minimum and maximum values
within which the image should be scaled.

!Help
Brings up this help widget

!Exit
Exit the program, and return the selected image to SunGlobe.
