Why are boundary and surface markers not carried over to the refined mesh?

Hi @dokken !

The code worked. But I have a question:

What does parameters["refinement_algorithm"] = "plaza_with_parent_facets" do? In the link below from another post, by “refine the facet markers appropriately”, do you mean preserving facet markers of the original coarse mesh? I don’t understand what refining a maker means?