After a lot of searching on SO, I couldn't find an answer to my specific use-case.
I've been using jQplot for a PHP/Javascript page that plots 100-200 different series with up to 50 points each. The problem is, that it is drawing each individual series as its own canvas layer, and eats up a TON of memory in the browser.
I want to get to the point of drawing 2000 series of 30-50 points each, and can deal without a lot of the interactive features that a lot of javascript graphing libraries present.
Is there a free (public license) graphing library out there that produces static images? Would such libraries take a long time to render such an image?
I do like the way jqplot looks, but I can't really expand my graph beyond 400x400 px without it taking a huge amount of RAM.