{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950461,-0.310845,0.000000,0.000000,0.173860,-0.531606,0.828956,0.000000,-0.257133,0.786228,0.561896,0.000000,-1641768.057463,5019979.630166,3563628.189764,1],    "boundingVolume": {    "region": [1.886829,0.596627,1.886927,0.596726,0.000000,8.239229]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1328140.b3dm"}}}