PROCEDURE make_fanplot_pictures :Description: Generate a set of fan plots for specified time period :Params: varn: a tplot variable for which fan plots are generated shhmm: start time in HHMM format for fan plots ehhmm: end time for fan plots center_glat: a geographic latitude in deg at which a fanplot is centered center_glon: a geographic longitude in deg at which a fanplot is centered gscatmaskoff: set to prevent ground scatter pixels from being filled with grey :Keywords: prefix: prefix string added to the file path of fan plots :EXAMPLES: make_fanplot_pictures, 'sd_hok_vlos_bothscat_1', 0230, 0300, prefix='pngdir/sd_hok_' :Author: Tomo Hori (E-mail: horit@stelab.nagoya-u.ac.jp) :HISTORY: 2011/07/01: Created $LastChangedBy: jwl $ $LastChangedDate: 2014-02-10 16:54:11 -0800 (Mon, 10 Feb 2014) $ $LastChangedRevision: 14265 $ $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/erg/ground/radar/superdarn/make_fanplot_pictures.pro $