{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896546,-0.442950,0.000000,0.000000,0.283356,-0.573523,0.768622,0.000000,-0.339523,0.687206,0.642240,0.000000,-2168519.411708,4389159.964584,4074499.221504,1],    "boundingVolume": {    "region": [2.029598,0.697342,2.029767,0.697491,0.000000,61.014776]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/0_916925.b3dm"}}}