{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858365,-0.513039,0.000000,0.000000,0.262705,-0.439531,0.858952,0.000000,-0.439897,0.735991,0.514596,0.000000,-2808211.446867,4698415.694756,3263082.869638,1],    "boundingVolume": {    "region": [2.109436,0.540473,2.109600,0.540599,0.000000,5.088766]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_267351.b3dm"}}}