{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858374,-0.513024,0.000000,0.000000,0.262453,-0.439128,0.859235,0.000000,-0.440030,0.736243,0.514120,0.000000,-2809058.315116,4700021.410769,3260060.486842,1],    "boundingVolume": {    "region": [2.109418,0.539919,2.109582,0.540044,0.000000,101.578900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/4_218514.b3dm"}}}