{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852964,-0.521970,0.000000,0.000000,0.269284,-0.440044,0.856649,0.000000,-0.446343,0.729379,0.518445,0.000000,-2849399.269519,4656269.047920,3287533.165353,1],    "boundingVolume": {    "region": [2.119909,0.544989,2.120002,0.545073,0.000000,46.592433]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/0_4306.b3dm"}}}