public LTDescr setScaleY()
{
this.type = TweenAction.SCALE_Y;
this.initInternal = ()=>{ this.fromInternal.x = trans.localScale.y; };
this.easeInternal = ()=>{ trans.localScale=new Vector3( trans.localScale.x,easeMethod().x,trans.localScale.z); };
return this;
}