[MENU BAR]

[File]

       This menu provides the following functions:

	    <Read Data> This option allows to read in 
	    <observational> data from a file, which are 
	    required for fitting a model. For the 
	    <format> of the file, please see the manual 
	    or the files included in the distribution.

	    <Reset Data Memory> Before reading in data for 
	    a new binary star, you should use this button 
	    to delete <all> data for the current binary, 
	    otherwise you would have a mixture of data for 
	    different stars in memory.
	    It is not possible to selectively delete only
	    part of the data.

	    <Read Configuration> Allows you to read in 
	    a file defining the geometry of a binary 
	    system. For the <format> of the file, 
	    please see the manual or the files included in 
	    the distribution. <Note> that the latter 
	    include commands to read data, thus you should 
	    use <Reset Data Memory> before using this option.

	    <Write Configuration> This will write the 
	    current geometry of the binary system (including 
	    spots etc.) to a file for later use. 
	    Commands for reading in the data files currently
	    in memory will be included as well.

	    <Quit> For closing the application.


[Output]

       This menue allows to use the available output options:

	    <PlotCurve> plots the computed lightcurve.
	    If observational data are available for
	    the selected filter, they will be overplotted.
	    The output filter and the part of the lightcurve
	    plotted can be selected from panel <Plot Options>.
	    You need to compute a lightcurve first to use
	    this option.

	    <StarView> gives you the opportunity to 
	    see the binary as a nearby observer would
	    see it. The phase angle and the inclination
	    of the orbital plane can be set interactively.

	    <RocheSlicer> allows you to view a slice through
	    the Roche potential. You can interactively switch
	    between the X-Y plane (the orbital plane) and
	    the X-Z plane (perpendicular to the orbital
	    plane). You can also choose interactively the
	    height above the selected plane.

	    <ViewGeometry> some nifty plots (non-interactive
	    version of <StarView> and <RocheSlicer>, basically).

	    <DataSheet> opens a window with the data on the
	    binary star system, including things like
	    individual masses of the stars, largest radius
	    ({Point Radius}) and smallest radius ({Polar}
	    {Radius}), mean temperatures etc. Basically,
	    this is the header of the output file
	    {NightfallCurve.dat}.

	    <Profiler> shows the profile of an absorption
	    line in the spectrum of the star. You can change
	    the phase interactively. You need to compute
	    the line profile first to use this option.