{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871365,-0.490635,0.000000,0.000000,0.211789,-0.376136,0.902035,0.000000,-0.442014,0.785013,0.434025,0.000000,-2821003.824816,5010082.969491,2751475.151873,1],    "boundingVolume": {    "region": [2.083559,0.448915,2.083671,0.448996,0.000000,30.477902]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_221051.b3dm"}}}