{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950553,-0.310561,0.000000,0.000000,0.173674,-0.531575,0.829014,0.000000,-0.256917,0.786361,0.561809,0.000000,-1640385.911676,5020826.699506,3563075.020248,1],    "boundingVolume": {    "region": [1.886531,0.596522,1.886629,0.596621,0.000000,12.847205]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1391337.b3dm"}}}