Dear all, I have a very coarse mesh that I wish to refine, but splitting the hexahedra unevenly. Specifically, what I want to do is to make sure that I get mesh nodes at some specified points in space; but doing this through successive refinement creates a huge number of cells, without ensuring that I get nodes exactly at the desired points.
Basically, the setup consists of an enourmous space, somewhere in which sits a molecule. I want to start out by creating a coarse mesh that has nodes at the centers of each of the nuclei, but with big cells, i.e. without having to refine much of the empty space. In theory, I could define the structure cells by hand and use Triangulation::create_triangulation to create the mesh. However, creating the CellData and SubCellData seems a little out of my league. Is there an easier way? And if not, would some kind soul with more insight into the deal.II-datastructures lend a hand on how to do this? Thank you very much in advance! -- Med venlig hilsen, James Avery <[email protected]>
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