{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950093,-0.311966,0.000000,0.000000,0.174396,-0.531123,0.829153,0.000000,-0.258123,0.786113,0.561604,0.000000,-1648083.294629,5019239.633524,3561767.541985,1],    "boundingVolume": {    "region": [1.887989,0.596218,1.888127,0.596427,0.000000,8.804839]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1396984.b3dm"}}}