local_frame

module opensg.utils.shell

opensg.utils.shell.local_frame(mesh)

Compute local orthonormal frame for shell elements.

This function computes an orthonormal frame (e1, e2, e3) at each point of the mesh, where: - e1 is the first tangent vector - e2 is the second tangent vector - e3 is the normal vector

Parameters:

mesh (dolfinx.mesh.Mesh) – Mesh object

Returns:

tuple – Three ufl.Vector objects (e1, e2, e3) forming the local frame