{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950652,-0.310259,0.000000,0.000000,0.173133,-0.530491,0.829822,0.000000,-0.256919,0.787216,0.560610,0.000000,-1640393.030935,5026261.014340,3555453.117180,1],    "boundingVolume": {    "region": [1.886204,0.595065,1.886320,0.595180,0.000000,8.435110]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1346014.b3dm"}}}