{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949083,-0.315026,0.000000,0.000000,0.176178,-0.530775,0.828999,0.000000,-0.260606,0.785130,0.561832,0.000000,-1663938.055949,5012966.453054,3563220.563205,1],    "boundingVolume": {    "region": [1.891230,0.596588,1.891331,0.596610,0.000000,10.428684]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/9_1419262.b3dm"}}}