title: Javascript charting library for huge data
body: <p>Does anyone know of a Javascript charting library that can handle huge datasets?</p>
  <p>By 'huge', I mean drawing a line graph with around 1,000 lines and 25,000 data points in total. (With an uneven distribution of points per line. A lot of lines have very few points, but some have up to 4,000.) Here is an <a href="http://www-users.cs.york.ac.uk/%7Eadam/StringmolWeb/grapher/example_data.txt" rel="noreferrer">example data file</a>.</p>
  <p>Currently I'm using <a href="http://www.highcharts.com" rel="noreferrer">Highcharts</a>, but it's far too slow at plotting huge datasets.</p>
  <p>I don't want to use Flash or Silverlight.</p>
  <p>I was hoping to use Javascript so that my users can zoom+pan around the graph, and turn lines on/off etc. But if this is just too much data for any Javascript charting library to handle, then I'll have to make the graphs server-side.</p>