{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898364,-0.439252,0.000000,0.000000,0.284099,-0.581043,0.762677,0.000000,-0.334064,0.683232,0.649304,0.000000,-2133719.588920,4363907.166478,4119443.956702,1],    "boundingVolume": {    "region": [2.025512,0.706632,2.025613,0.706706,0.000000,17.223610]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/8_1819600.b3dm"}}}