[vtkusers] deforming isosurface

[Vidhya Narayanan]

Hi all,

        I am trying to model the motion of the heart using vtk. I need to deform
the iso surface generated by the marching cubes algorithm. can anyone suggest a
way to achieve this? well I was thinking of identifying the nodes and moving
them.In this case how do I identify the nodes of an isosurface? kindly
help.Thanks in advance.

regards
Vidhya