Polar = function (name) {

	        /**
	         * @type {string}
	         */
	        this.name = name || '';

	        /**
	         * x of polar center
	         * @type {number}
	         */
	        this.cx = 0;

	        /**
	         * y of polar center
	         * @type {number}
	         */
	        this.cy = 0;

	        /**
	         * @type {module:echarts/coord/polar/RadiusAxis}
	         * @private
	         */
	        this._radiusAxis = new RadiusAxis();

	        /**
	         * @type {module:echarts/coord/polar/AngleAxis}
	         * @private
	         */
	        this._angleAxis = new AngleAxis();

	        this._radiusAxis.polar = this._angleAxis.polar = this;
	    }
@type {module:echarts/coord/polar/AngleAxis|module:echarts/coord/polar/RadiusAxis}