{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950071,-0.312034,0.000000,0.000000,0.174517,-0.531363,0.828974,0.000000,-0.258123,0.785923,0.561870,0.000000,-1648083.481359,5018031.205036,3563458.367581,1],    "boundingVolume": {    "region": [1.888060,0.596540,1.888199,0.596749,0.000000,8.799781]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_1399575.b3dm"}}}