// 江西地图层级和分辨率对应数据
var cor = [
  {
    "level": 0,
    "resolution": 0.010986328383069278,
    "scale": 4617150
  },
  {
    "level": 1,
    "resolution": 0.005493164191534639,
    "scale": 2308575
  },
  {
    "level": 2,
    "resolution": 0.0027465809060368165,
    "scale": 1154287
  },
  {
    "level": 3,
    "resolution": 0.0013732916427489112,
    "scale": 577144
  },
  {
    "level": 4,
    "resolution": 6.866458213744556E-4,
    "scale": 288572
  },
  {
    "level": 5,
    "resolution": 3.433229106872278E-4,
    "scale": 144286
  },
  {
    "level": 6,
    "resolution": 1.716614553436139E-4,
    "scale": 72143
  },
  {
    "level": 7,
    "resolution": 8.582953794130404E-5,
    "scale": 36071
  },
  {
    "level": 8,
    "resolution": 4.291595870115493E-5,
    "scale": 18036
  },
  {
    "level": 9,
    "resolution": 2.1457979350577466E-5,
    "scale": 9018
  },
  {
    "level": 10,
    "resolution": 1.0728989675288733E-5,
    "scale": 4509
  },
  {
    "level": 11,
    "resolution": 5.363305107141452E-6,
    "scale": 2254
  },
  {
    "level": 12,
    "resolution": 2.681652553570726E-6,
    "scale": 1127
  }
];