{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852953,-0.521987,0.000000,0.000000,0.269382,-0.440184,0.856546,0.000000,-0.446303,0.729282,0.518616,0.000000,-2849147.481863,4655650.799333,3288619.478287,1],    "boundingVolume": {    "region": [2.119929,0.545189,2.120022,0.545273,0.000000,76.431566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/3_4561.b3dm"}}}