{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949303,-0.314361,0.000000,0.000000,0.175470,-0.529883,0.829719,0.000000,-0.260284,0.786001,0.560763,0.000000,-1661874.664895,5018507.027829,3556423.658674,1],    "boundingVolume": {    "region": [1.890511,0.595254,1.890649,0.595360,0.000000,7.352364]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/2_1368389.b3dm"}}}