{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949982,-0.312305,0.000000,0.000000,0.174690,-0.531379,0.828927,0.000000,-0.258332,0.785804,0.561940,0.000000,-1649421.510002,5017273.384521,3563903.333034,1],    "boundingVolume": {    "region": [1.888346,0.596624,1.888484,0.596833,0.000000,8.764911]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1407554.b3dm"}}}