Mesh Refinement

tokamesh.construction.refine_mesh(R: ndarray, z: ndarray, triangles: ndarray, refinement_bools: ndarray) → tuple[numpy.ndarray, numpy.ndarray, numpy.ndarray]

Refine a mesh by partitioning specified triangles into 4 sub-triangles. Triangles sharing one or more edges with those being refined will also be partitioned in such a way to ensure the resulting mesh is valid.

Parameters

  • R – The major radius of each mesh vertex as a 1D numpy array.

  • z – The z-height of each mesh vertex as a 1D numpy array.

  • triangles – A 2D numpy array of integers specifying the indices of the vertices which form each of the triangles in the mesh. The array must have shape (N,3) where N is the total number of triangles.

  • refinement_bools – A numpy array of bools specifying which triangles will be refined. Triangles with indices corresponding to True values in the bool array will be refined.

Return R, z, triangles

The R, z and triangles arrays (defined as described above) for the refined mesh.

tokamesh.construction.trim_vertices(R: ndarray, z: ndarray, triangles: ndarray, trim_bools: ndarray) → tuple[numpy.ndarray, numpy.ndarray, numpy.ndarray]

Removes chosen vertices (and any triangles containing those vertices) from a mesh.

Parameters

  • R – The major radius of each mesh vertex as a 1D numpy array.

  • z – The z-height of each mesh vertex as a 1D numpy array.

  • triangles – A 2D numpy array of integers specifying the indices of the vertices which form each of the triangles in the mesh. The array must have shape (N,3) where N is the total number of triangles.

  • trim_bools – A 1D array of boolean values corresponding to the vertices, which is True for any vertices which are to be removed from the mesh.

Return R, z, triangles

The R, z and triangles arrays (defined as described above) with the specified vertices removed.