{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950096,-0.311959,0.000000,0.000000,0.174446,-0.531290,0.829035,0.000000,-0.258080,0.786003,0.561778,0.000000,-1647810.159641,5018536.720171,3562876.741357,1],    "boundingVolume": {    "region": [1.887981,0.596429,1.888120,0.596638,0.000000,8.821155]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1398509.b3dm"}}}