{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896438,-0.443169,0.000000,0.000000,0.283558,-0.573578,0.768507,0.000000,-0.339640,0.687020,0.642378,0.000000,-2169266.408222,4387970.504133,4075376.724541,1],    "boundingVolume": {    "region": [2.029843,0.697522,2.030011,0.697671,0.000000,40.201601]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/3/1_519730.b3dm"}}}