How to update the grid with each step of displacement？

[lyubing0716]

Under the updated Lagrangian framework, I want to achieve the coordinates of each node in a grid change with node displacements. But for a 'grid', the coordinates of its' nodes' cannot be directly modified, I can only create a Node((new_Coord[1], new_Coord[2])) to assign to the original Node, Is there any better way to achieve this function?

[KristofferC]

There is the transform_coordinates! function.