{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858193,-0.513327,0.000000,0.000000,0.262635,-0.439081,0.859204,0.000000,-0.440274,0.736061,0.514173,0.000000,-2810614.810891,4698856.407383,3260396.043273,1],    "boundingVolume": {    "region": [2.109771,0.539980,2.109936,0.540105,0.000000,96.260641]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/4_346809.b3dm"}}}