how about using the label function to populate an associative array and
then using that value in your data tip:
import mx.charts.HitData;
import mx.formatters.*;
public var a:Array = new Array();
private function buildDataTip(e:HitData):String {
var pieName:String = e.item[pie.nameField];
var pieValue:Number = e.item[pie.field];
var piePercent:String = a[e.item.Expense];
var s:String = pieName + ":" + pieValue + ":" +
piePercent;
return s;
}
public function buildLabel(data:Object, field:String,
index:Number, percentValue:Number):String {
a[data.Expense] = percentValue;
return data.Expense + ": $" + data.Amount + "\n" +
percentValue + "%";
}
hth,
matt horn
flex docs
> -----Original Message-----
> From: [email protected]
> [mailto:[EMAIL PROTECTED] On Behalf Of Tom Fitzpatrick
> Sent: Thursday, July 27, 2006 4:11 PM
> To: [email protected]
> Subject: [flexcoders] Custom datatip for pie chart
>
> I'm building a custom datatip for a pie chart.
>
> How do I get to the percent values for the pie wedges? (In
> the labelFunction this is expressed as percentValue.)
>
> Here's how I'm getting to other values so far:
>
> private function buildDataTip(e:HitData) : String { var
> pie:PieSeries = PieSeries(e.element); var pieName:String =
> e.item[pie.nameField]; var pieValue:Number =
> e.item[pie.field]; var piePercent = ?????????
> .....
> return .....
> }
>
> - Tom
>
>
>
>
>
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