{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.952574,-0.304307,0.000000,0.000000,0.112933,-0.353516,0.928586,0.000000,-0.282312,0.883725,0.373270,0.000000,-1801465.663776,5639148.273115,2365932.071490,1],    "boundingVolume": {    "region": [1.879957,0.382495,1.880057,0.382567,0.000000,10.857710]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/31/48_41821.b3dm"}}}