{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950522,-0.310657,0.000000,0.000000,0.173781,-0.531721,0.828899,0.000000,-0.256960,0.786225,0.561981,0.000000,-1640659.805950,5019959.241815,3564163.661433,1],    "boundingVolume": {    "region": [1.886631,0.596729,1.886729,0.596828,0.000000,8.804403]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1395375.b3dm"}}}