[vtkusers] Writing a JPEG from vtkActor

[Dominik Szczerba]

Strange. I found vtkDataSetToImageFilter, but on a line:

vtkDataSetToImageFilter* imageFilter = vtkDataSetToImageFilter::New();

I get a compilation error:

error: cannot convert `vtkDataObject*' to `vtkDataSetToImageFilter*' in
initialization

what is wrong?
Dominik

Dominik Szczerba wrote:
> What is the error? I try to do the same with vtkPNGWriter ending up with:
> 
> vtkPNGWriter (0x8058948): PNGWriter only supports unsigned char and
> unsigned short inputs
> 
> Meanwhile I try to figure out how to do the appropriate convertion in vtk.
> --dsz
> 
> Marlos Fabris wrote:
> 
>>Hi,
>>
>>I'm trying to write a jpeg file (using vtkJPEGWriter) from a vtkActor
>>but I can't accomplish this. I have a vtk file with structured points
>>data and I wish to transform to vtkPolyData and color it with my
>>vtkLookupTable.
>>
>>Is there a way to convert only my vtkActor to a vtkImageData, without
>>the frameborders of vtkWindowToImageFilter?
>>
>>Or is there a way to trim my image?
>>
>>Thank you in advance,
>>
>>Marlos Fabris
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> 

-- 
Dominik Szczerba, Dr.
ETZ C110 CO-ME/BIWI CH-8092 Zurich
http://www.vision.ee.ethz.ch/~domi