{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858304,-0.513141,0.000000,0.000000,0.262474,-0.439027,0.859280,0.000000,-0.440154,0.736223,0.514044,0.000000,-2809846.601034,4699887.216511,3259577.840009,1],    "boundingVolume": {    "region": [2.109554,0.539830,2.109719,0.539955,0.000000,34.969366]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/3_209612.b3dm"}}}