{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858251,-0.513230,0.000000,0.000000,0.262792,-0.439455,0.858964,0.000000,-0.440067,0.735903,0.514575,0.000000,-2809297.142831,4697856.009510,3262955.023490,1],    "boundingVolume": {    "region": [2.109659,0.540450,2.109823,0.540575,0.000000,10.904633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/8_399070.b3dm"}}}