{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950663,-0.310225,0.000000,0.000000,0.173378,-0.531303,0.829251,0.000000,-0.256713,0.786679,0.561458,0.000000,-1639082.284795,5022846.637164,3560842.372507,1],    "boundingVolume": {    "region": [1.886178,0.596097,1.886275,0.596196,0.000000,8.760521]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/1_1427131.b3dm"}}}