hi, you can use the AxisRenderer to do this . search the flex 3 api ,key word is "AxisRenderer "
then go to the style you will find "tickPlacement" .
the following is one example:
<mx:verticalAxisRenderers>
<mx:AxisRenderer axis="{verticalaxisid}" tickPlacement="outside" />
</mx:verticalAxisRenderers>
yay
2009-10-13 01:22:46