{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852968,-0.521963,0.000000,0.000000,0.269352,-0.440164,0.856566,0.000000,-0.446292,0.729311,0.518583,0.000000,-2849079.921731,4655840.648460,3288410.638053,1],    "boundingVolume": {    "region": [2.119900,0.545150,2.119993,0.545235,0.000000,41.970566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_3580.b3dm"}}}