{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896753,-0.442531,0.000000,0.000000,0.286865,-0.581310,0.761437,0.000000,-0.336006,0.680889,0.650761,0.000000,-2146136.100301,4348974.742889,4128712.493687,1],    "boundingVolume": {    "region": [2.029166,0.708548,2.029264,0.708624,0.000000,8.919580]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/21_1791058.b3dm"}}}