{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950949,-0.309348,0.000000,0.000000,0.116046,-0.356729,0.926972,0.000000,-0.286484,0.880666,0.377299,0.000000,-1828107.002634,5619685.140455,2391495.438047,1],    "boundingVolume": {    "region": [1.885222,0.386827,1.885385,0.386930,0.000000,10.458524]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/15_61034.b3dm"}}}