{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896472,-0.443101,0.000000,0.000000,0.283049,-0.572659,0.769380,0.000000,-0.339976,0.687832,0.641330,0.000000,-2171405.807787,4393137.663764,4068710.058562,1],    "boundingVolume": {    "region": [2.029760,0.696174,2.029943,0.696286,0.000000,82.879141]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/7_514021.b3dm"}}}