{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950283,-0.311388,0.000000,0.000000,0.173759,-0.530273,0.829830,0.000000,-0.257857,0.786919,0.560597,0.000000,-1646378.719637,5024362.010191,3555371.061247,1],    "boundingVolume": {    "region": [1.887400,0.595048,1.887499,0.595165,0.000000,8.746571]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1453236.b3dm"}}}