function getRealySize(el) {
    var arr = []

    var leftArr = []
    var topArr = []
    var rightArr = []
    var bottomArr = []

    function getRealySizeEl(el, arr) {
        // ����Ǽ��нM, ���ɰ�·�������M(j��n)ȥ
        if (el.clipped) {
            arr.push({
                el: el.pageItems[0],
                isClippedPath: true
            })
            return
        }

        // ������Ǽ��нM, ��������������һ��(g��)�M, �f���M��������м��нM
        if (el.constructor.name == "GroupItem") {
            for (var i = 0; i < el.pageItems.length; i++) {
                getRealySizeEl(el.pageItems[i], arr)
            }
            return
        }

        // ������Ǽ��нM, �����������M(j��n)ȥ
        arr.push({
            el: el,
            isClippedPath: false
        })
    }

    function minInArr(arr) {
        var min = arr[0];
        for (var i = 1; i < arr.length; i++) {
            if (arr[i] < min) {
                min = arr[i];
            }
        }
        return min;
    }

    function maxInArr(arr) {
        var max = arr[0];
        for (var i = 1; i < arr.length; i++) {
            if (arr[i] > max) {
                max = arr[i];
            }
        }
        return max;
    }

    getRealySizeEl(el, arr)

    for (var i = 0; i < arr.length; i++) {
        if (i.isClippedPath) {
            // ����Ǽ����ɰ�, �@ȡ������߅��߅��
            leftArr.push(arr[i].el.geometricBounds[0])
            topArr.push(arr[i].el.geometricBounds[1])
            rightArr.push(arr[i].el.geometricBounds[2])
            bottomArr.push(arr[i].el.geometricBounds[3])
        } else {
            // ������Ǽ����ɰ�, �@ȡ����߅��߅��
            leftArr.push(arr[i].el.visibleBounds[0])
            topArr.push(arr[i].el.visibleBounds[1])
            rightArr.push(arr[i].el.visibleBounds[2])
            bottomArr.push(arr[i].el.visibleBounds[3])
        }
    }

    var left = minInArr(leftArr)
    var top = maxInArr(topArr)
    var right = maxInArr(rightArr)
    var bottom = minInArr(bottomArr)

    return [left, top, right, bottom]
}