{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950755,-0.309945,0.000000,0.000000,0.173162,-0.531174,0.829379,0.000000,-0.256521,0.786876,0.561269,0.000000,-1637851.966187,5024105.938603,3559639.819124,1],    "boundingVolume": {    "region": [1.885858,0.595808,1.886004,0.596028,0.000000,8.787570]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/13_1422199.b3dm"}}}