{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950336,-0.311226,0.000000,0.000000,0.173939,-0.531127,0.829246,0.000000,-0.257540,0.786403,0.561465,0.000000,-1644359.655462,5021087.827940,3560889.434875,1],    "boundingVolume": {    "region": [1.887203,0.596063,1.887355,0.596248,0.000000,8.819076]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/1_1431660.b3dm"}}}