[vtkusers] Re: Writing a JPEG from vtkActor

[Dominik Szczerba]

Could you please post the relevant lines of code (including the lookup 
table creation)? I never managed to get it working.
thanks
Dominik

Marlos Fabris wrote:
> I found a solution. For example, using the code provided by Dominik
> Szczerba, I simply used vtkImageMapToColors and assign my
> vtkLookupTable, just before writing the file. So, I think this is the
> answer for my own question.
> 
> Regards,
> 
> Marlos Fabris
> 
> On 12/20/05, Marlos Fabris <marlos.fabris at gmail.com> wrote:
> 
>>Trying to figure out the problem from another perspective.
>>
>>What I would like to do is read a vtkStructuredPoints file and create
>>an image from it (my data is only 2d) with the vtkLookupTable
>>configured by me. And after this, create a 2d image without the
>>background borders from using vtkWindowToImageFilter. After this, I
>>will take the image and apply as a texture in another software. Is
>>there a way to do this? As I said, I was trying to use some filter,
>>but I couldn't convert vtkActor to vtkImageData.
>>
>>Thank you,
>>
>>Marlos Fabris
>>
>>On 12/20/05, Marlos Fabris <marlos.fabris at gmail.com> 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.
Computer Vision Lab CH-8092 Zurich
http://www.vision.ee.ethz.ch/~domi