PathProxy = function (notSaveData) {

    this._saveData = !(notSaveData || false);

    if (this._saveData) {
        /**
         * Path data. Stored as flat array
         * @type {Array.<Object>}
         */
        this.data = [];
    }

    this._ctx = null;
}
@param  {number} x1
@param  {number} y1
@param  {number} x2
@param  {number} y2
@return {module:zrender/core/PathProxy}