{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852950,-0.521992,0.000000,0.000000,0.269352,-0.440129,0.856584,0.000000,-0.446327,0.729311,0.518553,0.000000,-2849302.687804,4655840.069048,3288219.727333,1],    "boundingVolume": {    "region": [2.119935,0.545115,2.120028,0.545199,0.000000,62.700233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_4476.b3dm"}}}