{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949233,-0.314573,0.000000,0.000000,0.175928,-0.530868,0.828992,0.000000,-0.260229,0.785248,0.561842,0.000000,-1661533.469331,5013719.484836,3563282.723514,1],    "boundingVolume": {    "region": [1.890753,0.596600,1.890854,0.596622,0.000000,11.086840]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/9_1420252.b3dm"}}}