Hello
many questions, some anwers.
MeshFromPoints is a rhino command that surely use Ball Pivot but it seems it is not in Rhinocommon. It was implemented in Grasshopper by Tudor Cosmatu
But for some reason it doesn’t work for me !!
MeshFromPoints from MeshEdit needs points in a sort of rectangular fashion (in UV direction). Not good for this project.
For what you want here a solution, I let it far from the origin. I grouped points
Then put a sphere around it
Then shrink wrap it around metaball
201901_metaballs LD.gh (40.9 KB)
There are many examples of Shrink Wrap on old grasshopper forum
Exploring another strategy to make the approximation of metaball, not very good on all cases.
201901_metaballs LD2.gh (39.5 KB)