{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950100,-0.311946,0.000000,0.000000,0.174198,-0.530557,0.829557,0.000000,-0.258233,0.786505,0.561004,0.000000,-1648782.006324,5021728.882932,3557959.068521,1],    "boundingVolume": {    "region": [1.887987,0.595540,1.888087,0.595657,0.000000,8.625549]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/11_1427969.b3dm"}}}