{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857796,-0.513991,0.000000,0.000000,0.263122,-0.439122,0.859034,0.000000,-0.440755,0.735573,0.514458,0.000000,-2813691.051417,4695746.698320,3262210.197889,1],    "boundingVolume": {    "region": [2.110545,0.540313,2.110710,0.540438,0.000000,37.453941]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/14/7_389922.b3dm"}}}