[vtkusers] Writing a JPEG from vtkActor

[Marlos Fabris]

> What is the error?
I got an error in compilation. I can't figure out how to make the
conversion, because if I'm going to write directly the
vtkStructuredPoints data to the file, I'm going to get only a
grayscale image.

> I try to do the same with vtkPNGWriter (...)
When I used directly the vtkJPEGWriter, I needed to use the
vtkImageShiftScale class to compile, but I got a black image.

Marlos Fabris
IT Analyst
Institute of Technology for Development
Curitiba - Paraná - Brazil

On 12/20/05, 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
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