Hi all,

Sorry for simple questions again, what is the simplest way to access cell to vertex data from a mesh. I am going around in circles!

I am looking at the “pyop2” example of computing midpoints of cells

I.e. 

vertices = op2.Set(num_vertices)
cells = op2.Set(num_cells)

cell2vertex = op2.Map(cells, vertices, 3, […])