{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898318,-0.439347,0.000000,0.000000,0.284387,-0.581476,0.762240,0.000000,-0.333943,0.682802,0.649819,0.000000,-2132949.184691,4361170.505390,4122717.708285,1],    "boundingVolume": {    "region": [2.025615,0.707309,2.025721,0.707382,0.000000,11.006872]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/6_1802973.b3dm"}}}