{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852965,-0.521969,0.000000,0.000000,0.269290,-0.440054,0.856642,0.000000,-0.446338,0.729374,0.518456,0.000000,-2849366.921967,4656235.632528,3287608.023808,1],    "boundingVolume": {    "region": [2.119908,0.545003,2.120000,0.545087,0.000000,90.474900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/0_4319.b3dm"}}}