{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858239,-0.513250,0.000000,0.000000,0.262458,-0.438874,0.859363,0.000000,-0.440290,0.736239,0.513904,0.000000,-2810716.970903,4699986.672041,3258689.899873,1],    "boundingVolume": {    "region": [2.109681,0.539667,2.109846,0.539792,0.000000,26.520100]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/1_300794.b3dm"}}}