Open Flash Chart 2 JSON to PNG converter
JavaScript Ruby Shell
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ofc2_to_png.rb
ofc2_to_png_headless.sh

README

Converts Open Flash Chart 2 <http://teethgrinder.co.uk/open-flash-chart-2/>
chart description files (which are written in JSON format) into PNG images.

This tool is designed for automation.  It can be run from a CRON job or
shell script---even in a headless environment (where a graphical display
is absent) as the "ofc2_to_png_headless.sh" shell script demonstrates.

To see help and usage information, run the `ruby ofc2_to_png.rb` command.