{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858281,-0.513180,0.000000,0.000000,0.262526,-0.439069,0.859243,0.000000,-0.440168,0.736170,0.514106,0.000000,-2809938.942597,4699554.935036,3259974.628964,1],    "boundingVolume": {    "region": [2.109600,0.539903,2.109764,0.540028,0.000000,78.074233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/3_335331.b3dm"}}}