{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898121,-0.439749,0.000000,0.000000,0.284459,-0.580965,0.762603,0.000000,-0.334409,0.682979,0.649392,0.000000,-2135921.819711,4362297.654073,4120003.596466,1],    "boundingVolume": {    "region": [2.026065,0.706747,2.026166,0.706822,0.000000,7.331909]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/9_1823536.b3dm"}}}