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  Vertically Stacked Positive Negative Chart with Zones
Posted by John Doe on Mar-04-2013 10:04
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Hello,

Can you please help me with a chart that looks like in the file attached? It needs to a
Positive Negative chart with Stacked Vertical Bars showing % difference relative to a
baseline - positive values in a zone colored green and negative values in a zone colored
red.

Please help! I'm on a tight deadline and I'd really really appreciate any help!

Thank you!

(I'm using PHP and Chart Director v4.1)
C.jpg

  Re: Vertically Stacked Positive Negative Chart with Zones
Posted by Peter Kwan on Mar-04-2013 23:58
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Hi John,

The chart you attached is just a regular "Multi-Bar Chart" (not a stacked bar chart) with a zoned background color. The data values can represent anything you like, such as representing the "% difference relative to a baseline". The zoned background can created using Axis.addZone. For example, you can create the chart with the plot area being red in color, and then add a zone for the positive range, like:

$c->yAxis->addZone(0, 999999, $myGreenColor);

For the "Multi-Bar Chart", you may refer to the "Multi-Bar Chart" sample code included in ChartDirector for an example. If you mean a "Stacked Bar Chart" instead, please refer to the "Stacked Bar Chart" sample code.

Hope this can help.

Regards
Peter Kwan

  Re: Vertically Stacked Positive Negative Chart with Zones
Posted by John Doe on Mar-06-2013 08:16
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Hey Peter, my apologies for the noise. That was easy! :) Thanks!