{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949325,-0.314297,0.000000,0.000000,0.175563,-0.530283,0.829444,0.000000,-0.260144,0.785756,0.561171,0.000000,-1660984.076347,5016949.574905,3559018.663759,1],    "boundingVolume": {    "region": [1.890444,0.595747,1.890581,0.595853,0.000000,8.800059]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/7_1363237.b3dm"}}}