{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858728,-0.512431,0.000000,0.000000,0.262277,-0.439522,0.859088,0.000000,-0.439445,0.736420,0.514368,0.000000,-2805327.765301,4701149.622683,3261635.081304,1],    "boundingVolume": {    "region": [2.108727,0.540208,2.108892,0.540333,0.000000,6.467366]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/6_246226.b3dm"}}}