
When the program starts, data from the first active region in the database
is displayed. The active region location is marked on the heliographical
grid with the brightness temperature peaks in intensity (circle) and
polarization (cross).
        On the right panel, date, P and B angles, number of active regions,
Tb peak values in stokes I & V and degree of polarization of the brightest
points are given (for the current date).
	The toolbar across the top enables the following actions:
'File':
        'Done'         - Exit;
        'Header'       - View the FITS file header;
        'Image path'   - Specify the directory path where the Nobeyama map
                         files reside;
        'Save'         - Save image or text data:
             'Data'    - save the results in a text file:
                  'Current Date' - for the current date,
                  'Active Region' - for the selected active region;
             'Image'   - save image in the current graphics window:
                   'Gif'    - in GIF file,
                   'PS'     - not yet activated,
                   'Window' - copy the image into a graphics window of
                                the same size.

Warning! To obtain valid data in this mode, a search after NAME of active
region should be done.

        '?' - help.

'Tools':
        'Colors'       - Adjust color palette (XLoadCT);
        'Calculator'   - Not yet implemented;
        'Show AR'      - Overlay AR names on the screen;
        'Show AR always / Don't show AR' - always show AR names (or switch
                                           off this mode);
        'Show image'   - Display NRH FITS map for the current date (intensity);
        'Show image always / Don't show image' - always display FITS map
						(or switch off this mode);
        'Zoom'         - Zoom in a region previously marked with a
                         box-shaped cursor;
        'Unzoom'       - Return to the full-disk view;
        'Nest'         - Run another copy (instance) of the program 'ardb'.

'Panel':
        'Current date / Search' - Switch between displaying data for the
                                  current date and search mode.


        In the 'Current date' mode (default) all the displayed data refer to
the current date. The buttons '<' and '>' switch to the previous or
the next date. A date can also be entered directly by clicking in the date
panel.
        The cursor coordinates are displayed above the graphics window
(pixel_X, pixel_Y, longitude, latitude). Clicking on the left mouse button,
when the cursor is inside the graphics window, the data for the active region
closest to the cursor's position is displayed.
        Switching to the 'Search' mode brings up a search panel. This panel
contains the list of the available search parameters. To start a search,
 the search bounds must be entered FIRST in the 'Lower' and 'Upper' boxes.
Then the search-key parameter should be selected. The 'Inverse' mode searches
for data outside of the boundaries. The search results are displayed in a box
in the upper toolbar. One can now view the data for a given date by clicking
on the date list.
	When the search key is 'Type' then all the records containing the
magnetic classification indicated will be found. The following classification
optiones are possible:

- 'alpha' or 'a' or '0';
- 'beta'  or 'b' or '1';
- 'gamma' or 'g' or '2';
- 'delta' or 'd' or '3'.

        If the search is made on the degree of polarization or brightness
temperature, then one can also choose: 'Leader' / 'Follower', 'I_Peak' /
 'V_peak', 'I_tb' / 'V_tb'.
        If  'Abs_val' is active, the search will be performed on the absolute
value of the given parameter range.
        If 'Exclusively' is active (only for 'Type' criterion), the search
will be performed on the  exact match of the type.

        'Map / Plot' - switch between modes of displaying maps and plots of
AR parameters. WARNING! To use the 'Plot' option, a search on AR name must
be done FIRST. Currently, only area and brightness temperatures of the
leader (solid line) and the follower (dotted line) are plotted.

To define a new image path, press 'File - Image path' and select
a file in any directory named 'fyymm' (f+yy+mm). Then confirm the path which
will appear in the right upper window. This path will be saved in
the file 'ardb.ini' till the next update.

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