Morning all.
Is there anyway I can select points in a mesh and then just smooth the selected part… ?
I would like to create a box or curve to select points and then… add smooth to only the selected area of the MESH.
Any idea how to do this with Grasshopper ( Rhino 7) ?
Many thanks.
Ian 
You need to upload your mesh to get a right answer.
I noticed recently that subD’s can do this.
Maybe convert it to subD and then select those points and attempt to run some type of ‘smooth’ command.
I did alot of that exact thing on a project a month or so ago.
I was mindblown. I think all I did was select the points, and type ‘smooth’ and hit enter a couple times to complete the action – it was fun 
You can use Mesh.Smooth() method to Smooth part of a mesh:
https://developer.rhino3d.com/api/rhinocommon/rhino.geometry.mesh/smooth
For this you use version of method with parameters “mesh vertex indices” that specify the part of the mesh to smooth. I extracted part of my larger definition that demonstrates how it can be done:
SmoothPartOfMesh_A.gh (575.1 KB)
Partial smooth result:
Good morning. Thank so much for your help
One silly question at the beginning of your script, you have an input box for the selected vertices points.
I have my normal mesh selected and now im in point view mode but when i right click on the verticles point box and select multiple points, I seem to be only able to click on single points and not just select a big section of the points… what am I doing wrong ??
Many thanks and have a nice day.
Ian
Use Rhino command ExtractPt to extract vertices of part of the mesh:
https://docs.mcneel.com/rhino/7/help/en-us/index.htm#commands/extractpt.htm#(null)
and use this points as input points in the script
If baking is a necessary step, here is a better way.
It can pick V/E/F directly from GH.
Hey, thanks for this tool works like a charm for a small personal DIY project I’m currently doing.
