{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949276,-0.314443,0.000000,0.000000,0.175689,-0.530389,0.829350,0.000000,-0.260234,0.785625,0.561312,0.000000,-1661564.355502,5016119.351384,3559911.891871,1],    "boundingVolume": {    "region": [1.890598,0.595917,1.890735,0.596023,0.000000,8.738946]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/9_1361226.b3dm"}}}