{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852803,-0.522233,0.000000,0.000000,0.269385,-0.439903,0.856689,0.000000,-0.446589,0.729276,0.518377,0.000000,-2850968.135098,4655613.408589,3287104.415329,1],    "boundingVolume": {    "region": [2.120186,0.544904,2.120340,0.545000,0.000000,98.780900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/1/0/0_21057.b3dm"}}}