{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950216,-0.311593,0.000000,0.000000,0.173878,-0.530248,0.829821,0.000000,-0.258024,0.786854,0.560611,0.000000,-1647444.100669,5023951.327070,3555457.318789,1],    "boundingVolume": {    "region": [1.887615,0.595065,1.887715,0.595182,0.000000,8.814601]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/11/7_1453418.b3dm"}}}