{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896522,-0.442999,0.000000,0.000000,0.283446,-0.573626,0.768513,0.000000,-0.339511,0.687089,0.642371,0.000000,-2168447.644841,4388414.010820,4075335.189250,1],    "boundingVolume": {    "region": [2.029653,0.697513,2.029821,0.697663,0.000000,44.365953]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/1_508547.b3dm"}}}