{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949585,-0.313511,0.000000,0.000000,0.175134,-0.530458,0.829423,0.000000,-0.259486,0.785950,0.561203,0.000000,-1656784.048002,5018192.280346,3559222.954975,1],    "boundingVolume": {    "region": [1.889635,0.595798,1.889734,0.595880,0.000000,8.767464]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/7_1442657.b3dm"}}}