     {
         var stroke:Number = getStrokeExtents(postLayoutTransform).top;
         if (postLayoutTransform && hasComplexLayoutMatrix)
-            return stroke + getRoundRectBoundingBox(width, height, radiusX, radiusY, 
+            return stroke + getRoundRectBoundingBox(width, height, this, 
                                                     layoutFeatures.layoutMatrix).y;
 
         return stroke + this.y;

        {
            _radiusY = value;

            invalidateSize();
            invalidateDisplayList();
            invalidateParentSizeAndDisplayList();

            newSize = new Point(minWidth, minHeight);

        return strokeExtents.left +
            getRoundRectBoundingBox(newSize.x, newSize.y, this, m).x;
    }

    /**
