{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948848,-0.315733,0.000000,0.000000,0.176375,-0.530048,0.829422,0.000000,-0.261325,0.785340,0.561204,0.000000,-1668524.700334,5014296.293246,3559229.255487,1],    "boundingVolume": {    "region": [1.891956,0.595787,1.892094,0.595893,0.000000,8.044616]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/7_1069401.b3dm"}}}