{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949116,-0.314926,0.000000,0.000000,0.116064,-0.349789,0.929611,0.000000,-0.292491,0.881499,0.370686,0.000000,-1866403.752346,5624912.053958,2349537.991066,1],    "boundingVolume": {    "region": [1.891121,0.379690,1.891230,0.379805,0.000000,60.795093]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/19_75884.b3dm"}}}