{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949405,-0.314054,0.000000,0.000000,0.175490,-0.530519,0.829309,0.000000,-0.259899,0.785693,0.561373,0.000000,-1659423.337110,5016550.626746,3560300.197560,1],    "boundingVolume": {    "region": [1.890206,0.596003,1.890305,0.596084,0.000000,10.761533]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/9_1359988.b3dm"}}}