;+
;NAME:
; mvn_swe_overplot
;PURPOSE:
; MAVEN PFP SWE Quicklook Plot
;CALLING SEQUENCE:
; mvn_swe_overplot, date = date, time_range = time_range, $
;      makepng=makepng, device = device, directory = pdir, $
;      l0_input_file = l0_input_file, noload_data=noload_data, $
;      _extra=_extra
;INPUT:
; No explicit input, everthing is via keyword.
;OUTPUT:
; Plots, on the screen or in a png file
;KEYWORDS:
; date = If set, a plot for the input date.
; time_range = If set, plot this time range, note that this supercedes
;              the date keyword, if both are set, the time range is
;              attempted.
; l0_input_file = A filename for an input file, if this is set, the
;                 date and time_range keywords are ignored.
; makepng = If set, make a png file, with filename
;           'mvn_swe_qlook_start_time_end_time.png'
; device = a device for set_plot, the default is to use the current
;          setting, for cron jobs, device = 'z' is recommended. Note
;          that this does not reset the device at the end of the
;          program.
; directory = If a png is created, this is the output directory, the
;             default is the current working directory.
; noload_data = if set, don't load data
;HISTORY:
; Hacked from thm_over_shell, 2013-05-12, jmm, jimm@ssl.berkeley.edu
; $LastChangedBy: jimm $
; $LastChangedDate: 2013-07-16 16:14:19 -0700 (Tue, 16 Jul 2013) $
; $LastChangedRevision: 12685 $
; $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/idl_socware/trunk/projects/maven/quicklook/mvn_swe_overplot.pro $
Pro mvn_swe_overplot, date = date, time_range = time_range, $
                      makepng=makepng, device = device, directory = directory, $
                      l0_input_file = l0_input_file, $
                      noload_data = noload_data, $
                      test_l2_file = test_l2_file, _extra=_extra

mvn_qlook_init

;First load the data
If(~keyword_set(noload_data)) Then Begin
    If(keyword_set(l0_input_file)) Then Begin
        filex = l0_input_file[0]
    Endif Else Begin
        dprint, "No Database Yet', dlev=0
;    filex = mvn_l0_db2file(date=date, time_range=time_range)
    Endelse
    mvn_swe_load, filex, /l0
    mvn_swe_ql
Endif

varlist = ['swe_espec', 'swe_pad']

;You need a time range for the data, Assuming that everything comes
;from one kind of packet, you should be ok, but check all variables
;just in case

varlist = mvn_qlook_vcheck(varlist, tr = tr)
If(varlist[0] Eq '')  Then Begin
    dprint, 'No data, Returning'
    Return
Endif

;Remove gap between plot panels
tplot_options, 'ygap', 0.0d0

;plot the data
tplot, varlist

If(keyword_set(makepng)) Then Begin
    If(keyword_set(directory)) Then pdir = directory Else pdir = './'
    fname = pdir+mvn_qlook_filename('swe', tr, _extra=_extra)
    makepng, fname
Endif

If(keyword_set(test_l2_file)) Then Begin 
    If(keyword_set(directory)) Then pdir = directory Else pdir = './'
    fname = pdir+mvn_qlook_filename('swe', tr, _extra=_extra, /alt_name, /date_only)+'.cdf'
    sttr = dummy_maven_l2_struct(varlist)
    sttr.filename = fname
    fname0 = file_basename(fname, '.cdf')
    sttr.g_attributes.logical_file_id = fname0
    dummy = cdf_save_vars(sttr, fname)
Endif


Return
End