{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950461,-0.310845,0.000000,0.000000,0.173845,-0.531561,0.828988,0.000000,-0.257143,0.786259,0.561849,0.000000,-1641828.878737,5020175.132525,3563326.783438,1],    "boundingVolume": {    "region": [1.886829,0.596570,1.886927,0.596669,0.000000,15.174609]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1392978.b3dm"}}}