{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950558,-0.310547,0.000000,0.000000,0.173555,-0.531239,0.829255,0.000000,-0.256980,0.786596,0.561452,0.000000,-1640787.540674,5022317.030722,3560804.290568,1],    "boundingVolume": {    "region": [1.886516,0.596090,1.886613,0.596189,0.000000,8.780530]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/1_1427026.b3dm"}}}