{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871354,-0.490654,0.000000,0.000000,0.211803,-0.376142,0.902029,0.000000,-0.442028,0.784999,0.434038,0.000000,-2821092.694981,5009988.234157,2751555.987821,1],    "boundingVolume": {    "region": [2.083580,0.448930,2.083693,0.449010,0.000000,50.372445]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_221454.b3dm"}}}