{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950277,-0.311405,0.000000,0.000000,0.173769,-0.530270,0.829830,0.000000,-0.257871,0.786914,0.560597,0.000000,-1646469.057849,5024330.909453,3555373.163844,1],    "boundingVolume": {    "region": [1.887418,0.595049,1.887517,0.595166,0.000000,8.750799]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1453238.b3dm"}}}