{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858358,-0.513051,0.000000,0.000000,0.262490,-0.439158,0.859209,0.000000,-0.440039,0.736207,0.514164,0.000000,-2809117.643406,4699790.336760,3260340.596332,1],    "boundingVolume": {    "region": [2.109446,0.539966,2.109616,0.540099,0.000000,101.578900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/4.b3dm"}}}