{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950456,-0.310858,0.000000,0.000000,0.173862,-0.531586,0.828968,0.000000,-0.257148,0.786237,0.561878,0.000000,-1641863.365026,5020032.306524,3563510.864893,1],    "boundingVolume": {    "region": [1.886844,0.596605,1.886941,0.596704,0.000000,11.384751]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1394027.b3dm"}}}