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, […]) So I need the data from the mesh to replace […] Thanks Tim Dr Tim Dodwell Senior Lecturer in Engineering Mathematics Rm 221 - Harrison Building College of Engineering, Mathematics & Physical Sciences University of Exeter Exeter Devon EX4 4PY mail: t.dodwell(at)exeter.ac.uk<http://exeter.ac.uk/> tel: +44 (0)1392 725899 mob: +44 (0)7745 622870 web: http://emps.exeter.ac.uk/engineering/staff/td336 Papers and Pre-prints: @Research-Gate<https://www.researchgate.net/profile/Timothy_Dodwell> Citations: @Google-Scholar<https://scholar.google.co.uk/citations?user=lPpjRfUAAAAJ&hl=en>