[vtkusers] Direct access to the array of vtkImageData

[Michael Jackson]

vtkImageData* image = vtkImageData::New();
// Set the data type, allocate  all the data and stuff like that

double* data = (double*)(image->GetScalarPointer());

untested but should work.
_________________________________________________________
Mike Jackson                  mike.jackson at bluequartz.net
BlueQuartz Software                    www.bluequartz.net
Principal Software Engineer                  Dayton, Ohio



On Mar 11, 2009, at 11:23 AM, Dirk Kolb wrote:

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> Hello,
>
> I hope this is the right forum for my question. This is my first time
> with VTK.
>
> I need some hints for the following problem:
>
> I implemented a viewer for the presentation of spectral data.  
> Therefore
> I used the vtkImageViewer together with the vtkImageData. I get the
> spectral data in form of a double valued matrix (1000,4096). The  
> content
> of the matrix and also of the vtkImageData is time dependend. This  
> means
> the content of  e.g. the 100th line is in the next time step the  
> content
> of the 99th line and so on. The first line of the array is dropped  
> and a
> new line is pushed back.
>
> Is there a possibility for a fast implemtation? In my opinion I need  
> the
> direct access to the data array of a vtkImageData?
>
> Thanks in advance,
>
> Dirk
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