{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950457,-0.310855,0.000000,0.000000,0.173860,-0.531587,0.828968,0.000000,-0.257145,0.786238,0.561878,0.000000,-1641845.084388,5020038.634019,3563510.377062,1],    "boundingVolume": {    "region": [1.886840,0.596605,1.886938,0.596703,0.000000,11.384751]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1394013.b3dm"}}}