Using Chart Script to Define a specific series color

JasonW

When a Chart Runs you can redefine the palette colors based on the number of datapoints or some other script value. An example of that approach is located here:<br />
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http://www.birt-exchange.org/devshare/designing-birt-reports/826-chart-script-to-alter-palette-gradient-pie/#description<br />
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This example takes one value from a series and defines a color for it using the beforeDrawDataPoint and beforeDrawLegendItem scripts.

function beforeDrawDataPoint( dph, fill, icsc )
{
 if( dph.getBaseDisplayValue() == "Trains" ){
  importPackage( Packages.org.eclipse.birt.chart.model.attribute.impl );
  var mycolor = ColorDefinitionImpl.ORANGE();
     r = mycolor.getRed();
        g = mycolor.getGreen();
        b = mycolor.getBlue();
        fill.set(r, g, b);
    }
}

function beforeDrawLegendItem( lerh, bounds, icsc )
{
  if( lerh.getLabel().getCaption().getValue() == "Trains"){              
   importPackage( Packages.org.eclipse.birt.chart.model.attribute.impl );
  var mycolor = ColorDefinitionImpl.ORANGE();
     r = mycolor.getRed();
        g = mycolor.getGreen();
        b = mycolor.getBlue();
        lerh.getFill().set(r, g, b);
    }
}