AS3 Anti Aliasing of a rotated bitmap

When rotating a bitmap with actionscript, the edges are jagged and not properly anti-aliased.

How do you force anti-aliasing of the bitmap ?

this.stage.quality = StageQuality.B开发者_开发问答EST; // Tried this, but seems useless 
var imgFromLib = new imgFromLib ();
imgFromLib.rotation = 30;

imgFromLib should be castable to Bitmap; Bitmap has smoothing and pixelSnapping properties. Maybe this helps.