{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871260,-0.490822,0.000000,0.000000,0.211986,-0.376297,0.901922,0.000000,-0.442126,0.784819,0.434263,0.000000,-2821718.902151,5008846.243062,2752982.976088,1],    "boundingVolume": {    "region": [2.083773,0.449179,2.083885,0.449260,0.000000,109.170094]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_227296.b3dm"}}}