{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858473,-0.512858,0.000000,0.000000,0.262379,-0.439196,0.859223,0.000000,-0.439882,0.736318,0.514140,0.000000,-2808111.087094,4700498.478512,3260187.852940,1],    "boundingVolume": {    "region": [2.109225,0.539942,2.109389,0.540067,0.000000,81.018233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/4_219679.b3dm"}}}