{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943222,-0.332164,0.000000,0.000000,0.186274,-0.528950,0.827958,0.000000,-0.274434,0.779292,0.563373,0.000000,-1752243.241324,4975722.720825,3573012.647286,1],    "boundingVolume": {    "region": [1.909320,0.598414,1.909465,0.598511,0.000000,8.729967]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_568742.b3dm"}}}