{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852956,-0.521983,0.000000,0.000000,0.269355,-0.440145,0.856575,0.000000,-0.446314,0.729309,0.518568,0.000000,-2849218.848078,4655822.292445,3288316.888772,1],    "boundingVolume": {    "region": [2.119924,0.545133,2.120016,0.545217,0.000000,78.392900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_4514.b3dm"}}}