{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897527,-0.440959,0.000000,0.000000,0.286175,-0.582480,0.760803,0.000000,-0.334531,0.680905,0.651504,0.000000,-2136723.702705,4349086.945019,4133441.612435,1],    "boundingVolume": {    "region": [2.027387,0.709452,2.027539,0.709679,0.000000,5.915797]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1780083.b3dm"}}}