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Single meter chart from multiple data sets [message #949497]

Fri, 19 October 2012 03:01

birt 2010

Messages: 11
Registered: October 2012

Junior Member

Simple, I am using BIRT designer and not using any API, I have three data sets each retrieve a particular variable say temperature, The temp-south, temp-north and temp-west.
How do I show all them on a single meter chart. Basically how do I access three different data sets and assign dia1, dial2 and dial 3 to three different data sets respectively?
Using basic report designer in eclipse. Any help??? Rolling Eyes

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Re: Single meter chart from multiple data sets [message #950556 is a reply to message #949497]

Sat, 20 October 2012 00:57

Michael Williams

Messages: 1925
Registered: July 2009

Senior Member

Have you tried using joint dataSets to merge your data into a single dataSet? Then, using this final dataSet in your chart?

Michael

Developer Evangelist, Silanis

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Re: Single meter chart from multiple data sets [message #953656 is a reply to message #950556]

Mon, 22 October 2012 12:27

birt 2010

Messages: 11
Registered: October 2012

Junior Member

I see. Is this the only way to achieve this?

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Re: Single meter chart from multiple data sets [message #954214 is a reply to message #953656]

Mon, 22 October 2012 21:46

Michael Williams

Messages: 1925
Registered: July 2009

Senior Member

You'll have to create a single dataSet, somehow. You could use a joint dataSet, rewrite your query to only have a single dataSet, use a scripted dataSet to take the values from your other 3 dataSets to make a single dataSet, or you could take the values from the 3 dataSets, create a chart dataSet, in your chart script and set the chart to use this data, in the beforeGeneration script.

http://help.eclipse.org/juno/index.jsp?topic=%2Forg.eclipse.birt.chart.doc.isv%2Fchart%2Fapi%2Forg%2Feclipse%2Fbirt%2Fchart%2Fmodel%2Fdata%2Fimpl%2FDataSetImpl.html

Michael

Developer Evangelist, Silanis

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