code: function () {
  		var axis = this,
  			chart = axis.chart,
  			pointer = chart.pointer;
  
  		// hide tooltip and hover states
  		if (pointer.reset) {
  			pointer.reset(true);
  		}
  
  		// render the axis
  		axis.render();
  
  		// move plot lines and bands
  		each(axis.plotLinesAndBands, function (plotLine) {
  			plotLine.render();
  		});
  
  		// mark associated series as dirty and ready for redraw
  		each(axis.series, function (series) {
  			series.isDirty = true;
  		});
  
  	}
docs: Redraw the axis to reflect changes in the data or axis extremes