Starling+Feathersで縦書き

var textRenderer:TextBlockTextRenderer = new TextBlockTextRenderer();
var fontDescription:FontDescription = new FontDescription( MY_MAIN_FONT_NAME, FontWeight.NORMAL,
	FontPosture.NORMAL, FontLookup.EMBEDDED_CFF, RenderingMode.CFF, CFFHinting.NONE );
var ef:ElementFormat = new ElementFormat( fontDescription,fontSize, color );
ef.locale = "ja";
textRenderer.elementFormat = ef;
textRenderer.width = width;
textRenderer.height = height;
textRenderer.wordWrap = true;
textRenderer.lineRotation = TextRotation.ROTATE_90;
textRenderer.text = "いろはにほへと　ちりぬるを";
addChild(textRenderer);