{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871359,-0.490647,0.000000,0.000000,0.211796,-0.376136,0.902033,0.000000,-0.442023,0.785006,0.434029,0.000000,-2821062.644282,5010035.360541,2751501.358067,1],    "boundingVolume": {    "region": [2.083572,0.448920,2.083684,0.449001,0.000000,39.098830]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_221172.b3dm"}}}