{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.952840,-0.303472,0.000000,0.000000,0.113654,-0.356850,0.927222,0.000000,-0.281119,0.882658,0.376678,0.000000,-1793869.815352,5632389.821667,2387557.234236,1],    "boundingVolume": {    "region": [1.879044,0.386157,1.879217,0.386259,0.000000,19.660774]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/4/15_32643.b3dm"}}}