title: BIRT Report chart with aggregated values
body: <p>Im kind of new to this BIRT reporting thing, so my issue might be easy to solve (sorry if so). I made some research and could not find anything helpfull, so I hope anyone got an idea. I'm using BIRT version 4.8.
  I have a report which has tons of analysis (from a lab) of different products.
  For each product, there are different limits. I get those informations (analysis and limits) form a database (obviously).
  Now with all this data, there is a lot of stuff going on within the report. Highlights, different styles, <strong>aggregations</strong> (summary in the heard area of the report).</p>
  <p>Things like:</p>
  <ul>
  <li>how many analyzis do I have,</li>
  <li>how many times is the maximum exceeded or below the lower limit</li>
  <li>how many analyzis got only one error, two, three and more than three errors etc.</li>
  </ul>
  <p>In the end, I have report looking like this (with many more lines)
  <a href="https://i.stack.imgur.com/Ph3lL.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Ph3lL.png" alt="example analyzis" /></a></p>
  <p>So far so good.
  Now I want do make a chart with the data from the head of the report. I want a pie chart like this (example made in ms excel)</p>
  <p><a href="https://i.stack.imgur.com/zSj8R.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zSj8R.png" alt="pie example" /></a></p>
  <p>How do i say within that chart &quot;the pie is 'Total of E'. now add 'No Errors' and 'One Error' and 'Two Error' etc. into my pie, each with a different color&quot;?
  <a href="https://i.stack.imgur.com/Pi6PJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Pi6PJ.png" alt="BIRT pie chart" /></a></p>
  <p>I have access to those aggregations from the head, but I dont know how to add them into the pie chart.
  Any ideas would be appreciated. Many thanks in advance!</p>
  <p>Jay</p>