{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950220,-0.311579,0.000000,0.000000,0.173882,-0.530286,0.829796,0.000000,-0.258004,0.786834,0.560648,0.000000,-1647319.357871,5023823.585548,3555694.013560,1],    "boundingVolume": {    "region": [1.887601,0.595110,1.887700,0.595226,0.000000,8.764896]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/7_1453819.b3dm"}}}