{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949301,-0.314367,0.000000,0.000000,0.175625,-0.530339,0.829395,0.000000,-0.260186,0.785690,0.561244,0.000000,-1661255.226979,5016529.868954,3559480.576211,1],    "boundingVolume": {    "region": [1.890518,0.595835,1.890655,0.595941,0.000000,8.680512]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/8_1361856.b3dm"}}}