{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950489,-0.310757,0.000000,0.000000,0.173443,-0.530498,0.829752,0.000000,-0.257310,0.787015,0.560714,0.000000,-1642886.265603,5024978.244279,3556110.627932,1],    "boundingVolume": {    "region": [1.886736,0.595189,1.886835,0.595306,0.000000,8.808242]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/8_1450375.b3dm"}}}