#FENICS AND GMSH UPDATE#
#FENICS AND GMSH SOFTWARE#

Here is the CircleCI build for the same.Ī basic skeleton of the new mesh workflow has been prepared in the first phase. A new function named read_tags() was added to the XDMFFile.cpp and the functionality of it was tested both in C++ as well as python version of the code. The last part of the project was to add the capabilities to dolfin to read tag data. The required changes to meshio are done and here is the CircleCI build corresponding to the change.

#FENICS AND GMSH UPDATE#

We need to update meshio to write the map of string tag to number tag in element of the XDMF file. There is no need for change in this part. The changes to be made to different parts of the mesh workflow is as follows: So, in essence, we could keep the current process of working with a mesh and add methods to meshio and dolfinx. The agreed-upon method was to use the tag of XDMF to carry the information about various tagged regions from `gmsh` to `dolfin` via meshio. What was required by my GSoC project was to create a new mesh workflow that would seamlessly allow users to integrate different boundaries into their simulation. The problem with the current implementation of the mesh workflow is that if a user has many different tagged regions in the mesh that s/he wishes to utilize in the simulation then there is no direct method of doing so. This is done with the help of “ Mesh Function ” and “ Mesh Value Collection ” in FEniCS. Next, we need to assign the material properties and apply loads and boundary condition. msh file created by gmsh into XDMF file that could be read by DOLFIN using meshio.

#FENICS AND GMSH SOFTWARE#

This task is carried out in a popular meshing software gmsh. This would help the end user to easily model with a large number of tagged regions.Ī typical mesh workflow with FEniCS is as follows: The goal of the project is to preserve the named metadata in `.geo` files through to the tagged regions (MeshValueCollection) in dolfinx. I have already discussed my project in detail in the previous posts and would just summarize it here. The coding period officially started on May 27th, 2019. Then I tried to figure it out on my own with these steps: 1) Create a simple geometry: Sphere in extruded hexagon, apply combound filter following this tutorial: overview.png.

Fenics and gmsh