{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858461,-0.512878,0.000000,0.000000,0.262333,-0.439095,0.859289,0.000000,-0.439933,0.736365,0.514029,0.000000,-2808437.785324,4700793.435448,3259485.816905,1],    "boundingVolume": {    "region": [2.109249,0.539813,2.109413,0.539938,0.000000,7.416566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/3_206911.b3dm"}}}