so you're writing your next killer app and for smooth svg processing you choose apache batik.
but after a quick search, you notice there's no ruby way of doing it...
then the 'batik' gem comes to the rescue:
$ gem install 'batik'
finally your code looks like:
Batik.rasterize 'stuff.svg', :to => :jpg, :css => 'pretty.css'
and you fell in ♥ again.
(if you're a jruby wizard, try kreynolds' ruby-batik gem)