{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852953,-0.521988,0.000000,0.000000,0.269371,-0.440164,0.856560,0.000000,-0.446311,0.729293,0.518592,0.000000,-2849199.788879,4655723.867959,3288471.710396,1],    "boundingVolume": {    "region": [2.119930,0.545162,2.120023,0.545246,0.000000,78.392900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_4501.b3dm"}}}