[vtkusers] find vertex index

wingsneak naygniw at hotmail.com
Thu Mar 29 13:32:49 EDT 2012


I used vtkMarching Cubes to generate the skull and bone surfaces of a human
head, from the CT images meta image file (.mha)

I then used vtkCellPicker to pick points on the bone surface, hence knowing
the subID, cellID, global point coordinates of the picked points.

I then converted the original 3D skull and bone surfaces to .ply format. 

I have got 2 questions:

1) is it possible to output the 3D bone and skull surfaces with the picked
points to an output .ply file? How do i go about it? WIll the .ply file
store the points picked?


2) If it is not possible to output the 3D bone and skull surfaces with the
picked points to an output .ply file, then, 
from the subID / cellID / global point coordinates of the picked point on
the rendered surface, could i use these information to find the vertex index
of those points on the .ply file? How do i do so? I need to find out the
vertex index of the particular point on the .ply file surface



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