{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950087,-0.311984,0.000000,0.000000,0.174460,-0.531284,0.829036,0.000000,-0.258101,0.785996,0.561777,0.000000,-1647944.892839,5018497.366947,3562869.902838,1],    "boundingVolume": {    "region": [1.888008,0.596428,1.888146,0.596637,0.000000,8.821155]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1398500.b3dm"}}}