{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943335,-0.331841,0.000000,0.000000,0.186107,-0.529054,0.827928,0.000000,-0.274158,0.779358,0.563416,0.000000,-1750477.397822,4976144.469291,3573288.980830,1],    "boundingVolume": {    "region": [1.908978,0.598466,1.909123,0.598564,0.000000,8.803792]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_657490.b3dm"}}}