{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949722,-0.313096,0.000000,0.000000,0.115378,-0.349980,0.929624,0.000000,-0.290794,0.882075,0.370652,0.000000,-1855580.262097,5628582.333235,2349322.664273,1],    "boundingVolume": {    "region": [1.889178,0.379620,1.889316,0.379801,0.000000,22.719759]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/8_73474.b3dm"}}}