"- Use case: displaying 3D data in two dimensions using contours or color-coded regions.\n", "- There are three applicable Matplotlib functions: ``plt.contour`` for contour plots, ``plt.contourf`` for ...

Summary Currently, ContourSets are not Artists, which causes issues such as #6139 (essentially, the API is not uniform, and they do not appear directly in the draw tree). At a low level, a ContourSet ...