{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949112,-0.314939,0.000000,0.000000,0.116005,-0.349598,0.929690,0.000000,-0.292528,0.881572,0.370485,0.000000,-1866639.079665,5625369.373012,2348264.388808,1],    "boundingVolume": {    "region": [1.891135,0.379474,1.891243,0.379589,0.000000,41.277450]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/17_7452.b3dm"}}}