NAME: mvn_gen_multipng_plot PURPOSE: Creates full day, 6 hour and 2 hour png files for data for a given day, Note that the data must have already been plotted for this routine to work properly. It calls tplot without arguments. CALLING SEQUENCE: mvn_gen_multipng_plot, filename_proto, date, directory=directory INPUT: filename_in = the first part of the eventual filename, e.g., 'mvn_pfp_ql_yyyymmdd' OUTPUT: png files, with names directory+filename_proto+yyddmm_hshf.png, where hshf refers to start and end hours for the plot. KEYWORDS: directory = the output directory, remember the trailing slash.... HISTORY: Hacked from thm_gen_multipngplot, 15-oct-2014, jmm, jimm@ssl.berkeley.edu $LastChangedBy: jimm $ $LastChangedDate: 2014-12-10 16:22:29 -0800 (Wed, 10 Dec 2014) $ $LastChangedRevision: 16447 $ $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/maven/quicklook/mvn_gen_multipngplot.pro $