Dolfinx mpc overlapping constraints

[mattiafilips]

Ok, then it’s better to try to impose the periodic conditions on non-overlapping dofs from the beginning. To make this easier in my case, I would need to know if in create_contact_inelastic_condition api, it would be possible to optionally take in a rototranslation matrix to apply to the slave_marker dofs coords before finding the collisions with the master_marker ones. I am using this condition to do a magnetostatic 2d of a sector (like 2pi/8) of an electric motor where I want to apply the rotation to the rotor and ensure potential continuity through the contact periodicity (the mesh is non conformal at the airgap, as in Dolfinx_mpc on a curved interface - #4 by dokken ), while on the boundaries I have periodic or antiperiodic conditions, and dirichlet Az=0 on the outer stator boundary.