{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897772,-0.440461,0.000000,0.000000,0.282825,-0.576469,0.766611,0.000000,-0.336725,0.686331,0.644644,0.000000,-2150672.657883,4383614.843746,4089796.068014,1],    "boundingVolume": {    "region": [2.026845,0.700523,2.026972,0.700592,0.000000,20.008293]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_393978.b3dm"}}}