{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950669,-0.310207,0.000000,0.000000,0.173567,-0.531916,0.828818,0.000000,-0.256563,0.786269,0.562100,0.000000,-1638127.306270,5020243.080270,3564923.537457,1],    "boundingVolume": {    "region": [1.886125,0.596838,1.886290,0.597007,0.000000,8.821139]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1396731.b3dm"}}}