{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858305,-0.513139,0.000000,0.000000,0.262738,-0.439471,0.858972,0.000000,-0.439993,0.735957,0.514561,0.000000,-2808825.433740,4698200.863800,3262865.195649,1],    "boundingVolume": {    "region": [2.109552,0.540433,2.109717,0.540559,0.000000,10.904633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/8_263727.b3dm"}}}