{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858497,-0.512818,0.000000,0.000000,0.262366,-0.439220,0.859215,0.000000,-0.439843,0.736331,0.514154,0.000000,-2807863.254352,4700583.221683,3260278.515276,1],    "boundingVolume": {    "region": [2.109178,0.539959,2.109342,0.540084,0.000000,82.438233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/4_220442.b3dm"}}}