let tileInfo = new TileInfo({
rows: 256,
cols: 256,
compressionQuality: 0,
origin: {
x: -180,
y: 90,
},
spatialReference: {
wkid: 4490,
},
lods: [
{
level: 0,
levelValue: 1,
resolution: 0.703125,
scale: 295497593.05875003,
},
{
level: 1,
levelValue: 2,
resolution: 0.3515625,
scale: 147748796.52937502,
},
{
level: 2,
levelValue: 3,
resolution: 0.17578125,
scale: 73874398.264687508,
},
{
level: 3,
levelValue: 4,
resolution: 0.087890625,
scale: 36937199.132343754,
},
{
level: 4,
levelValue: 5,
resolution: 0.0439453125,
scale: 18468599.566171877,
},
{
level: 5,
levelValue: 6,
resolution: 0.02197265625,
scale: 9234299.7830859385,
},
{
level: 6,
levelValue: 7,
resolution: 0.010986328125,
scale: 4617149.8915429693,
},
{
level: 7,
levelValue: 8,
resolution: 0.0054931640625,
scale: 2308574.9457714846,
},
{
level: 8,
levelValue: 9,
resolution: 0.00274658203125,
scale: 1154287.4728857423,
},
{
level: 9,
levelValue: 10,
resolution: 0.001373291015625,
scale: 577143.73644287116,
},
{
level: 10,
levelValue: 11,
resolution: 0.0006866455078125,
scale: 288571.86822143558,
},
{
level: 11,
levelValue: 12,
resolution: 0.00034332275390625,
scale: 144285.93411071779,
},
{
level: 12,
levelValue: 13,
resolution: 0.000171661376953125,
scale: 72142.967055358895,
},
{
level: 13,
levelValue: 14,
resolution: 8.58306884765625e-5,
scale: 36071.483527679447,
},
{
level: 14,
levelValue: 15,
resolution: 4.291534423828125e-5,
scale: 18035.741763839724,
},
{
level: 15,
levelValue: 16,
resolution: 2.1457672119140625e-5,
scale: 9017.8708819198619,
},
{
level: 16,
levelValue: 17,
resolution: 1.0728836059570313e-5,
scale: 4508.9354409599309,
},
{
level: 17,
levelValue: 18,
resolution: 5.3644180297851563e-6,
scale: 2254.4677204799655,
},
{
level: 18,
levelValue: 19,
resolution: 2.68220901489257815e-6,
scale: 1127.23386023998275,
},
{
level: 19,
levelValue: 20,
resolution: 1.341104507446289075e-6,
scale: 563.616930119991375,
}
],
});
level还能继续添加不，目前19级限制了地图放大
取决于你的分辨率吧，有一些高清的影像，到20级也是可以的。