[ccp4bb] cross-section view of (protein) molecules in pymol?

[Jacob Wong]

Dear all,
http://www.nature.com/nature/journal/v458/n7234/fig_tab/nature07819_F3.html

Just came across this figure Fig. 3b) and would like to know what is the
general and easiest way to make things like this, as a "non-brainer". Thank
you, -Jacob