{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950530,-0.310631,0.000000,0.000000,0.173697,-0.531513,0.829050,0.000000,-0.256986,0.786376,0.561757,0.000000,-1640826.283424,5020920.090861,3562742.873905,1],    "boundingVolume": {    "region": [1.886605,0.596459,1.886702,0.596557,0.000000,8.360805]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/5_1389940.b3dm"}}}