{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950493,-0.310746,0.000000,0.000000,0.173860,-0.531792,0.828837,0.000000,-0.257015,0.786141,0.562073,0.000000,-1641009.986589,5019425.557540,3564750.077568,1],    "boundingVolume": {    "region": [1.886726,0.596841,1.886823,0.596939,0.000000,8.622855]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1396478.b3dm"}}}