code: function (str, x, y) {
  
  		var defaultChartStyle = defaultOptions.chart.style;
  
  		return this.createElement('span')
  			.attr({
  				text: str,
  				x: mathRound(x),
  				y: mathRound(y)
  			})
  			.css({
  				whiteSpace: 'nowrap',
  				fontFamily: defaultChartStyle.fontFamily,
  				fontSize: defaultChartStyle.fontSize
  			});
  	}
docs: Create rotated and aligned text
  @param {String} str
  @param {Number} x
  @param {Number} y