rrdtool and rails

How would one get the information stored in rrdtool into a database that rails can present to the user?
Would it be possible to combine this data with other data in the same database to handle virtual connections between the data?


rrdtool uses its own on-disk database format (called a round-robin
database) which handles expiry, the data scaling, etc. internally. It
won't map well into SQL, so it's probably best to just keep the files
external to the "real" database.

I have not yet found a ruby rrd binding, so I've been using a call out
to rrdtool to generate my images, and putting them in the public
directory so they can be linked to with the usual tricks.


Just FYI - http://rubyforge.org/projects/rrrdtool/