{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951852,-0.306559,0.000000,0.000000,0.112596,-0.349605,0.930107,0.000000,-0.284873,0.884517,0.369428,0.000000,-1817787.763869,5644151.401655,2341555.535095,1],    "boundingVolume": {    "region": [1.882290,0.378333,1.882454,0.378453,0.000000,20.735773]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/10_45621.b3dm"}}}