{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950277,-0.311406,0.000000,0.000000,0.173766,-0.530258,0.829838,0.000000,-0.257874,0.786921,0.560586,0.000000,-1646487.821522,5024378.256299,3555298.070511,1],    "boundingVolume": {    "region": [1.887418,0.595034,1.887518,0.595151,0.000000,8.750799]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1346100.b3dm"}}}