{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950761,-0.309925,0.000000,0.000000,0.172731,-0.529889,0.830290,0.000000,-0.256789,0.787754,0.559913,0.000000,-1639557.976776,5029686.704789,3551020.911996,1],    "boundingVolume": {    "region": [1.885820,0.594207,1.886002,0.594353,0.000000,6.285793]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1375310.b3dm"}}}