{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950715,-0.310067,0.000000,0.000000,0.173400,-0.531673,0.829009,0.000000,-0.256507,0.786490,0.561817,0.000000,-1637766.098850,5021648.264877,3563122.076907,1],    "boundingVolume": {    "region": [1.885977,0.596496,1.886143,0.596665,0.000000,8.791633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/5/2_1391621.b3dm"}}}