{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950555,-0.310557,0.000000,0.000000,0.173553,-0.531212,0.829273,0.000000,-0.256994,0.786610,0.561426,0.000000,-1640877.954860,5022406.952428,3560636.920665,1],    "boundingVolume": {    "region": [1.886527,0.596058,1.886624,0.596157,0.000000,8.455061]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/1_1426710.b3dm"}}}