{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871377,-0.490615,0.000000,0.000000,0.211791,-0.376160,0.902024,0.000000,-0.441990,0.785014,0.434048,0.000000,-2820851.469862,5010089.261933,2751618.922102,1],    "boundingVolume": {    "region": [2.083535,0.448941,2.083648,0.449021,0.000000,50.372445]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_221735.b3dm"}}}