{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852966,-0.521966,0.000000,0.000000,0.269365,-0.440180,0.856554,0.000000,-0.446289,0.729299,0.518603,0.000000,-2849058.003621,4655764.147326,3288537.085148,1],    "boundingVolume": {    "region": [2.119904,0.545174,2.119997,0.545258,0.000000,41.970566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_3616.b3dm"}}}