{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949947,-0.312410,0.000000,0.000000,0.174477,-0.530533,0.829514,0.000000,-0.258604,0.786337,0.561068,0.000000,-1651150.780767,5020660.770443,3558365.194949,1],    "boundingVolume": {    "region": [1.888444,0.595610,1.888608,0.595741,0.000000,8.732640]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/11/15_1433293.b3dm"}}}