{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949489,-0.313799,0.000000,0.000000,0.175237,-0.530231,0.829546,0.000000,-0.259763,0.785990,0.561020,0.000000,-1658554.966587,5018439.877728,3558056.737004,1],    "boundingVolume": {    "region": [1.889907,0.595484,1.890069,0.595750,0.000000,8.409832]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/15_1366459.b3dm"}}}