{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852953,-0.521987,0.000000,0.000000,0.269350,-0.440131,0.856583,0.000000,-0.446322,0.729314,0.518554,0.000000,-2849271.475780,4655854.746064,3288225.949592,1],    "boundingVolume": {    "region": [2.119929,0.545116,2.120021,0.545201,0.000000,62.700233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_4477.b3dm"}}}