{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950951,-0.309342,0.000000,0.000000,0.116044,-0.356732,0.926972,0.000000,-0.286479,0.880667,0.377301,0.000000,-1828073.527782,5619690.801143,2391507.642532,1],    "boundingVolume": {    "region": [1.885216,0.386829,1.885379,0.386932,0.000000,12.380182]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/16_61046.b3dm"}}}