{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949081,-0.315033,0.000000,0.000000,0.176100,-0.530526,0.829175,0.000000,-0.260667,0.785296,0.561572,0.000000,-1664329.758534,5014021.274322,3561564.255036,1],    "boundingVolume": {    "region": [1.891219,0.596231,1.891357,0.596337,0.000000,8.793916]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1447536.b3dm"}}}