{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949141,-0.314850,0.000000,0.000000,0.175926,-0.530343,0.829329,0.000000,-0.260565,0.785494,0.561342,0.000000,-1663674.718853,5015280.367476,3560107.025721,1],    "boundingVolume": {    "region": [1.891027,0.595954,1.891164,0.596060,0.000000,14.224535]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1360600.b3dm"}}}