{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951832,-0.306619,0.000000,0.000000,0.112508,-0.349256,0.930248,0.000000,-0.284972,0.884636,0.369067,0.000000,-1818421.211932,5644901.373387,2339270.100096,1],    "boundingVolume": {    "region": [1.882353,0.377945,1.882517,0.378066,0.000000,10.292355]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/7_47572.b3dm"}}}