{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949671,-0.313249,0.000000,0.000000,0.114795,-0.348023,0.930431,0.000000,-0.291192,0.882802,0.368602,0.000000,-1858109.977151,5633195.627711,2336317.443055,1],    "boundingVolume": {    "region": [1.889324,0.377380,1.889493,0.377629,0.000000,15.255490]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/9_15019.b3dm"}}}