{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898008,-0.439980,0.000000,0.000000,0.283854,-0.579352,0.764054,0.000000,-0.335226,0.684203,0.647680,0.000000,-2141126.703918,4370079.997443,4109113.492906,1],    "boundingVolume": {    "region": [2.026307,0.704425,2.026439,0.704647,0.000000,28.436203]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/4_1850458.b3dm"}}}