{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858838,-0.512248,0.000000,0.000000,0.262071,-0.439389,0.859218,0.000000,-0.439356,0.736627,0.514148,0.000000,-2804752.475864,4702467.703463,3260238.866353,1],    "boundingVolume": {    "region": [2.108514,0.539951,2.108678,0.540076,0.000000,55.438833]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/4_220023.b3dm"}}}