{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948598,-0.316485,0.000000,0.000000,0.116337,-0.348697,0.929987,0.000000,-0.294058,0.881378,0.369732,0.000000,-1876401.522220,5624126.377054,2343488.534514,1],    "boundingVolume": {    "region": [1.892765,0.378686,1.892870,0.378756,0.000000,17.842829]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/18_13391.b3dm"}}}