{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950725,-0.310036,0.000000,0.000000,0.173543,-0.532169,0.828661,0.000000,-0.256372,0.786164,0.562333,0.000000,-1636911.980410,5019579.116250,3566406.437585,1],    "boundingVolume": {    "region": [1.885945,0.597120,1.886110,0.597290,0.000000,8.620254]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_1383321.b3dm"}}}