{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949333,-0.314271,0.000000,0.000000,0.175470,-0.530049,0.829614,0.000000,-0.260176,0.785925,0.560920,0.000000,-1661187.791156,5018022.230859,3557421.761683,1],    "boundingVolume": {    "region": [1.890443,0.595462,1.890528,0.595531,0.000000,8.496899]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/4.b3dm"}}}