{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950668,-0.310211,0.000000,0.000000,0.173574,-0.531933,0.828806,0.000000,-0.256562,0.786256,0.562118,0.000000,-1638121.607919,5020163.499810,3565037.453295,1],    "boundingVolume": {    "region": [1.886129,0.596860,1.886294,0.597029,0.000000,8.821139]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1396871.b3dm"}}}