{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949544,-0.313633,0.000000,0.000000,0.174508,-0.528333,0.830910,0.000000,-0.260057,0.787339,0.558988,0.000000,-1660415.928326,5027017.577674,3545143.513007,1],    "boundingVolume": {    "region": [1.889732,0.593032,1.889894,0.593297,0.000000,5.938783]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/5_1321584.b3dm"}}}