{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943326,-0.331869,0.000000,0.000000,0.186124,-0.529050,0.827927,0.000000,-0.274181,0.779349,0.563418,0.000000,-1750622.757450,4976086.799095,3573298.019156,1],    "boundingVolume": {    "region": [1.909008,0.598468,1.909152,0.598566,0.000000,8.803792]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_657498.b3dm"}}}