{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852966,-0.521966,0.000000,0.000000,0.269353,-0.440161,0.856567,0.000000,-0.446296,0.729311,0.518581,0.000000,-2849101.266260,4655837.456299,3288396.758158,1],    "boundingVolume": {    "region": [2.119904,0.545148,2.119996,0.545232,0.000000,62.700233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_4488.b3dm"}}}