{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897703,-0.440601,0.000000,0.000000,0.282924,-0.576443,0.766595,0.000000,-0.336824,0.686263,0.644664,0.000000,-2151306.784283,4383183.642924,4089923.848404,1],    "boundingVolume": {    "region": [2.027001,0.700549,2.027128,0.700618,0.000000,16.562030]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/11/7_857949.b3dm"}}}