[question] How the mesh editing is implemented?

[maidamai0]

Hi, I found the mesh editing in the example is intresting, but I didn't find the code in the example.
In the demo, user moved one point of the mesh, and the points near moved accordingly and the points far away don't change.

Can you tell me the code of this example? Thank you~

[!mesh editing]22e636f6d2f6f3871386948712e676966)