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L4_LAT_ALT_DAY

L4_LAT_ALT_DAY

Name


L4_LAT_ALT_DAY

Purpose


  This routine displays one day of L4 data at a time. A movie can be
  generated (manual or passive mode), or a single day, or a PS file.

Category


  SNOE, image, movie

Calling Sequence


  L4_LAT_ALT_DAY, Coord, YYYYDDD [YYYYDDD1]

Inputs


  COORD: The coordinate system of the data, either 'geo' or 'mag'
  YYYYDDD: The day to display.

Optional Inputs


  YYYYDDD1: The last day to display in a MOVIE sequence

Keyword Parameters


  MANUAL: Set this to control the movie manually
          ,: prev day (<)
          q: Quit movie
          j: Jump to day
          l: Toggle LOG mode
          any other key: next day
  PS: Set this keyword to produce a POSTSCRIPT image
  CH: Set this to the desired channel to view [ 2 ]
  LOG: Set this to view the data on a Logarithmic scale
  EXTRA=e is used for:
      L4_LAT_ALT_DISP (lv, sv, mask, log, subtitle, interp, xtitle, etc.)
      IMDISP: (INTERP, OUT_POS, etc. )
      DEVICE: (FILENAME, BITS_PER_PIXEL, PORTRAIT, LANDSCAPE, etc. )
      others...

Outputs


  An image, or a PS file

Side Effects


  Uses the PS device if /PS set. Uses the current WINDOW

Restrictions


  Must be in a L4-type directory (needs NO_?_day_???.dat)

Procedure


  This routine just opens files and handles the movie part
  (i.e. moving through the file in a loop or based upon your
  keystrokes). The display program is called each time through the
  loop, with all necessary variables and keywords (and _EXTRA=e)
  passed in.

Example


  To generate an image:
  L4_lat_alt_day, 'geo', 1998079
  L4_lat_alt_day, 'mag', 2002150, /LOG, /PS, /INTERP, FILENAME='foo.ps'
  To watch a movie:
  L4_lat_alt_day, 'geo', 1998079, 1999079, /LOG
 
  To step through:
  L4_lat_alt_day, 'geo', 1998079, /MANUAL, /INTERP

Modification History


  Written by: KDM; 2002-07-25
  2002-07-26: KDM; Added TOGGLE LOG mode
  2002-08-27; KDM; Improved AXIS accuracies
  2002-08-29; KDM; cm-3 should be cm^3
  2002-08-29; KDM; Now uses generic L4_LAT_ALT_DISP subroutine for
                    graphics. Uses FILE_UNIQ()
  2002-09-01; KDM; /swap_if_big_endian
  2002-09-09; KDM; added _EXTRA=e to OPEN (can now be used with BIG ENDIAN)



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