[vtkusers] Writing a JPEG from vtkActor

[Dominik Szczerba]

> 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.

could you pls post your code? i would be glad even with grayscale (get a
black image). Anyway, I have not been succesful with custom color tables
in vtk at all.

bye
--dsz

> 
> 
>>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
>>>_______________________________________________
>>>This is the private VTK discussion list.
>>>Please keep messages on-topic. Check the FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>>>Follow this link to subscribe/unsubscribe:
>>>http://www.vtk.org/mailman/listinfo/vtkusers
>>
>>--
>>Dominik Szczerba, Dr.
>>ETZ C110 CO-ME/BIWI CH-8092 Zurich
>>http://www.vision.ee.ethz.ch/~domi
>>_______________________________________________
>>This is the private VTK discussion list.
>>Please keep messages on-topic. Check the FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>>Follow this link to subscribe/unsubscribe:
>>http://www.vtk.org/mailman/listinfo/vtkusers
>>
> 
> _______________________________________________
> This is the private VTK discussion list. 
> Please keep messages on-topic. Check the FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers

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