从 cartopy.feature 中提取数据

Question

如何从通过 cartopyfeature界面导入的数据中提取轮廓线？如果解决方案涉及geoviews.feature或另一个包装器，那当然可以。例如，我将如何提取cfeature.COASTLINE如下例中绘制的数据？import matplotlib.pyplot as pltimport cartopy.crs as ccrsimport cartopy.feature as cfeatureax = plt.axes(projection=ccrs.PlateCarree())ax.add_feature(cfeature.COASTLINE)plt.show()我很感激你可能有任何提示！FWIW，在basemap，我会这样做：import mpl_toolkits.basemap as bmimport matplotlib.pyplot as pltm = bm.Basemap(width=2000e3,height=2000e3,            resolution='l',projection='stere',            lat_ts=70,lat_0=70,lon_0=-60.)fig,ax=plt.subplots()coastlines = m.drawcoastlines().get_segments()