{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950486,-0.310766,0.000000,0.000000,0.173875,-0.531800,0.828828,0.000000,-0.257028,0.786128,0.562085,0.000000,-1641097.687588,5019341.187701,3564827.975868,1],    "boundingVolume": {    "region": [1.886746,0.596855,1.886844,0.596954,0.000000,8.622855]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1396598.b3dm"}}}