Method toBBOX

src/common/commontypes/Bounds.js:150–164

* @function Bounds.prototype.toBBOX * @description 取小数点后 decimal 位数字进行四舍五入再转换为 BBOX 字符串。 * @example * var bounds = new Bounds(-1.1234567,-1.7654321,1.4444444,1.5555555); * //str1 = "-1.123457,-1.765432,1.444444,1.555556"; * var str1 = bounds.toBBOX(); * //str2 = "-1.1,-

(decimal, reverseAxisOrder)

     * @returns {string} 边界对象的字符串表示形式，如："5,42,10,45"。
     */
    toBBOX(decimal, reverseAxisOrder) {
        if (decimal == null) {
            decimal = 6;
        }
        var mult = Math.pow(10, decimal);
        var xmin = Math.round(this.left * mult) / mult;
        var ymin = Math.round(this.bottom * mult) / mult;
        var xmax = Math.round(this.right * mult) / mult;
        var ymax = Math.round(this.top * mult) / mult;
        if (reverseAxisOrder === true) {
            return ymin + "," + xmin + "," + ymax + "," + xmax;
        } else {
            return xmin + "," + ymin + "," + xmax + "," + ymax;
        }
    }

    ///**
    // * @function Bounds.prototype.toGeometry