{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896755,-0.442527,0.000000,0.000000,0.286869,-0.581324,0.761426,0.000000,-0.335998,0.680880,0.650774,0.000000,-2146083.881912,4348917.836097,4128798.995296,1],    "boundingVolume": {    "region": [2.029162,0.708566,2.029259,0.708642,0.000000,17.553589]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/21_1791112.b3dm"}}}