{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950726,-0.310033,0.000000,0.000000,0.173542,-0.532170,0.828661,0.000000,-0.256370,0.786165,0.562334,0.000000,-1636894.998625,5019584.269385,3566406.975391,1],    "boundingVolume": {    "region": [1.885942,0.597121,1.886107,0.597290,0.000000,8.620254]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_1383322.b3dm"}}}