{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950631,-0.310324,0.000000,0.000000,0.116558,-0.357059,0.926781,0.000000,-0.287328,0.880188,0.377773,0.000000,-1833495.176536,5616640.531997,2394500.856686,1],    "boundingVolume": {    "region": [1.886270,0.387325,1.886389,0.387454,0.000000,7.838603]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/6_60277.b3dm"}}}