Flow Along Mesh

Hi all,
I have a question about Flow Along Mesh.
I found that Rhino does not have a t Flow Along Mesh of function, that can only perform Flow Along surface.
The following is just a simple example.


I have found a related Grasshopper program, but after testing, I found a problem. When the object exceeds the range of the base, the object will deform, but the flow along surface will not. Is there any way to solve this problem? Using the flow along mesh method, can I simulate the deformation outside the boundary?


Best Regards,
Colin

Have you tried Mesh Cage Morph?

What is it you’re actually trying to do?

While extrapolating mesh coordinates beyond the boundary could work well enough for a flat rectangular mesh (and in this case you could make a surface of the same rectangle and flow along that), for more general 3d meshes I think trying to extend beyond the boundaries could get very messy.

I agree with you.

Thank for your help.
I have referred to your sharing about Mesh Cage Morph. After testing the Mesh Cage Morph, the result is like a virtual extension of the simulated boundary. I hope the direction of Extend can follow the tangent of the Target boundary.