{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852953,-0.521988,0.000000,0.000000,0.269382,-0.440183,0.856546,0.000000,-0.446304,0.729282,0.518615,0.000000,-2849152.138806,4655651.579703,3288614.373309,1],    "boundingVolume": {    "region": [2.119930,0.545188,2.120022,0.545272,0.000000,76.431566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/3_4569.b3dm"}}}