title: Line chart/graph with an irregular threshold field
body: <p>Looking to create a bar chart with an irregular, colored threshold field in the background, so that each data point has its own individual set of min/max thresholds, which ultimately would look something like this: <a href="http://dcalvitti.webs.com/plant/SAMPLE.png" rel="nofollow">http://dcalvitti.webs.com/plant/SAMPLE.png</a></p>
  
  <p>Looked at D3 examples like this one: <a href="http://bl.ocks.org/mbostock/4062844" rel="nofollow">http://bl.ocks.org/mbostock/4062844</a></p>
  
  <p>Can the latter example be manipulated to look more like the image I created?</p>
  
  <p>Thanks in advance..</p>