{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950508,-0.310699,0.000000,0.000000,0.173768,-0.531601,0.828979,0.000000,-0.257020,0.786290,0.561862,0.000000,-1641044.370251,5020370.204995,3563412.752455,1],    "boundingVolume": {    "region": [1.886676,0.596586,1.886774,0.596685,0.000000,18.141249]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1393458.b3dm"}}}