{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949436,-0.313962,0.000000,0.000000,0.174664,-0.528194,0.830965,0.000000,-0.260347,0.787302,0.558905,0.000000,-1662267.568960,5026779.244081,3544617.245258,1],    "boundingVolume": {    "region": [1.890112,0.592970,1.890207,0.593160,0.000000,8.484305]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/4/18_1321596.b3dm"}}}