{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949286,-0.314413,0.000000,0.000000,0.175652,-0.530336,0.829392,0.000000,-0.260223,0.785674,0.561250,0.000000,-1661488.820745,5016425.630787,3559518.199408,1],    "boundingVolume": {    "region": [1.890566,0.595842,1.890703,0.595948,0.000000,8.680512]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/8_1361799.b3dm"}}}