def bbox2ogr_clipdst(bbox):
    """
    convert "29.9997,59.7816,30.6396,60.1117" to "29.9997 59.7816 30.6396 60.1117"
    """
    clipdst = '{x1} {y1} {x2} {y2}'
    clipdst = clipdst.format(
    x1 = bbox.split(',')[0],
    y1 = bbox.split(',')[1],
    x2 = bbox.split(',')[2],
    y2 = bbox.split(',')[3],
    )
    return clipdst