{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950153,-0.311784,0.000000,0.000000,0.173919,-0.530015,0.829962,0.000000,-0.258226,0.786936,0.560402,0.000000,-1648734.099466,5024473.013181,3554130.852136,1],    "boundingVolume": {    "region": [1.887784,0.594806,1.887948,0.594937,0.000000,8.809282]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1451902.b3dm"}}}