{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950282,-0.311392,0.000000,0.000000,0.173762,-0.530274,0.829829,0.000000,-0.257860,0.786916,0.560599,0.000000,-1646397.162467,5024347.335154,3555383.177602,1],    "boundingVolume": {    "region": [1.887404,0.595051,1.887503,0.595167,0.000000,8.746571]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1453264.b3dm"}}}