{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.895066,-0.445934,0.000000,0.000000,0.284265,-0.570569,0.770483,0.000000,-0.342644,0.687746,0.640000,0.000000,-2188433.451821,4392564.055754,4060254.491764,1],    "boundingVolume": {    "region": [2.032947,0.694437,2.033080,0.694561,0.000000,29.189743]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/12_977750.b3dm"}}}