{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871365,-0.490635,0.000000,0.000000,0.211786,-0.376132,0.902037,0.000000,-0.442014,0.785016,0.434021,0.000000,-2821007.866755,5010096.620929,2751446.344243,1],    "boundingVolume": {    "region": [2.083558,0.448910,2.083671,0.448991,0.000000,30.477902]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_220946.b3dm"}}}