Discussion

Recall from Section  that nodes can offer facets, and these are called node facets. Not only that, Nodality allows a netlet to add facets to Nodality's existing collection. In this example we explore this.

If you like, you don't need to concentrate too hard on the discussion that follows. Instead you might prefer to skim it and get onto the code; then, when you come across something you don't understand, refer back to here.