{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950346,-0.311195,0.000000,0.000000,0.174046,-0.531513,0.828977,0.000000,-0.257430,0.786153,0.561865,0.000000,-1643659.756352,5019500.962601,3563431.750990,1],    "boundingVolume": {    "region": [1.887171,0.596546,1.887323,0.596732,0.000000,8.816588]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/3_1399548.b3dm"}}}