{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950547,-0.310581,0.000000,0.000000,0.173688,-0.531580,0.829008,0.000000,-0.256932,0.786350,0.561818,0.000000,-1640479.106325,5020754.930320,3563132.854579,1],    "boundingVolume": {    "region": [1.886552,0.596533,1.886650,0.596632,0.000000,12.847205]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1391671.b3dm"}}}