{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950588,-0.310454,0.000000,0.000000,0.173579,-0.531485,0.829092,0.000000,-0.256853,0.786465,0.561694,0.000000,-1639973.991286,5021484.414147,3562342.634061,1],    "boundingVolume": {    "region": [1.886418,0.596383,1.886516,0.596481,0.000000,10.918523]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/4_1388991.b3dm"}}}