{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950071,-0.312033,0.000000,0.000000,0.114927,-0.349929,0.929700,0.000000,-0.289831,0.882472,0.370461,0.000000,-1849431.797087,5631114.071099,2348111.763368,1],    "boundingVolume": {    "region": [1.888054,0.379466,1.888203,0.379545,0.000000,8.591622]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/29/21_5251.b3dm"}}}