{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852952,-0.521990,0.000000,0.000000,0.269385,-0.440186,0.856544,0.000000,-0.446304,0.729279,0.518618,0.000000,-2849155.263174,4655632.896422,3288637.957067,1],    "boundingVolume": {    "region": [2.119932,0.545192,2.120024,0.545276,0.000000,76.431566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/3_4577.b3dm"}}}