{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857820,-0.513951,0.000000,0.000000,0.263099,-0.439131,0.859036,0.000000,-0.440722,0.735596,0.514455,0.000000,-2813476.291854,4695891.102624,3262187.710584,1],    "boundingVolume": {    "region": [2.110498,0.540309,2.110662,0.540434,0.000000,37.453941]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/14/7_389442.b3dm"}}}