parameters specifying the creation of a pngwalk.
output folder for the walk, e.g. /home/user/pngwalk/
timerange to cover for the walk, e.g. 2012 through 2014.
rescale to show context for each step, e.g. "0%,100%" or "0%-1hr,100%+1hr"
autorange dependent dimensions
consider autorange flags for each axis.
clone the dom and run on the copy, so the original Autoplot is free.
version tag to apply to each image, if non-null
product name for the walk, e.g. product
timeformat for the walk, e.g. $Y$m$d
Uri that creates an events dataset, like 'http://emfisis.physics.uiowa.edu/events/rbsp-a/burst/rbsp-a_burst_times_20130201.txt?eventListColumn=3' or null for automatically generating names based on template.
if true, use the URI to source the list of events.
if non-null, use the name in the event list column instead of the product and timeFormat. For example, the batch file contains lines like: 2015-03-05T02:10 2015-03-05T02:14 marsex/event1 so this png will have the name outputFolder + "marsex/event1" + ".png" This must be either empty "" or "$o" for now.
if true, skip over products that appear to be created already.
presently this is png or pdf
also write a .vap file
check that image contains data.