{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858547,-0.512735,0.000000,0.000000,0.262464,-0.439481,0.859051,0.000000,-0.439687,0.736233,0.514428,0.000000,-2806873.580420,4699957.464488,3262020.636565,1],    "boundingVolume": {    "region": [2.109082,0.540278,2.109246,0.540404,0.000000,11.005166]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_249432.b3dm"}}}