{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950086,-0.311988,0.000000,0.000000,0.174446,-0.531235,0.829070,0.000000,-0.258115,0.786028,0.561726,0.000000,-1648034.904710,5018698.587738,3562546.993570,1],    "boundingVolume": {    "region": [1.888012,0.596366,1.888150,0.596575,0.000000,8.821155]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1398121.b3dm"}}}