docs: function () {
  		
  		axisProto.setAxisSize.call(this);
  
  		if (this.isRadial) {
  
  			// Set the center array
  			this.center = this.pane.center = Highcharts.CenteredSeriesMixin.getCenter.call(this.pane);
  
  			// The sector is used in Axis.translate to compute the translation of reversed axis points (#2570)
  			if (this.isCircular) {
  				this.sector = this.endAngleRad - this.startAngleRad;	
  			}
  			
  			// Axis len is used to lay out the ticks
  			this.len = this.width = this.height = this.center[2] * pick(this.sector, 1) / 2;
  
  
  		}
  	}