{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950566,-0.310524,0.000000,0.000000,0.173622,-0.531487,0.829082,0.000000,-0.256907,0.786436,0.561709,0.000000,-1640323.687157,5021301.280284,3562439.119069,1],    "boundingVolume": {    "region": [1.886492,0.596401,1.886590,0.596500,0.000000,8.782607]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/4_1389177.b3dm"}}}