{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949112,-0.314940,0.000000,0.000000,0.115821,-0.349041,0.929922,0.000000,-0.292602,0.881794,0.369896,0.000000,-1867110.589665,5626781.555155,2344528.356101,1],    "boundingVolume": {    "region": [1.891137,0.378862,1.891242,0.378932,0.000000,41.748348]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/4/21_5917.b3dm"}}}