[vtkusers] Retrieving Data from vtkImageData class for matlab/tcl

[Koning, P.J.H. de (LKEB)]

08-08-02 15:09:04, Surajit Nundy <nundys at neuro.duke.edu> wrote:

>This is probably a naive question, my apologies.
>
>I have a vtkImageData object from which I'd like to retrieve the Data in
>double/float form and operate on it in Matlab (I think my question also applies
>to tcl).  How can I do this?  I have tried the GetPoint, GetCell,
>GetScalarComponentAsFloat methods to no avail.
>

Try using vtkImageData::GetScalarPointer(x, y, z). This should give you the pointer to the data at point (x,y,z). Just cast 
to double/float or whatever type your imagedata is.

>Thanks,
>Surajit Nundy
>
>
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