Towards the best fitting of elements, we want to know which elements are worst fitted to know which ones should be displaced . <img width="678" alt="Screenshot 2024-09-07 at 13 07 37" src="https://github.com/user-attachments/assets/10c5f729-9e0e-41fe-ae3a-374639087462"> displacements needed: <img width="745" alt="Screenshot 2024-09-07 at 13 10 00" src="https://github.com/user-attachments/assets/2c64975d-aaee-4b38-bdea-60436eeb1ea5">