[vtkusers] Deforming 3-dimensional meshes

[Aniqah Mair]

Hi everyone,

What facilities does VTK have for manipulating 3-dimensional meshes?

I currently have 3-dimensional models represented by vtkPolyData 
objects. What I want to do is ignore the points made to construct this 
model, and treat it as one large mesh that can be "poked" inwards and 
"tugged" outwards at points along the surface to modify the shape of the 
model as if it were made of clay. The user who will be deforming the 
mesh will be limited to one finger to perform these actions, and the 
manipulation of the surface will be done on 2-dimensional slices of the 
model.

If you know of any built-in functionality that would help me accomplish 
this (or a different way to approach this problem), your help would be 
greatly appreciated.

Thank you,

Aniqah