{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871402,-0.490570,0.000000,0.000000,0.211812,-0.376242,0.901985,0.000000,-0.441930,0.785003,0.434130,0.000000,-2820472.043072,5010015.577135,2752138.481139,1],    "boundingVolume": {    "region": [2.083484,0.449031,2.083596,0.449112,0.000000,74.070240]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_224699.b3dm"}}}