[vtkusers] Screenshot Error

[Wenlong Wang]

Yes, It is saved in jpeg format as I expected. However, the camera zoom in
to right top of the original display, I have to reset the camera to fix it.

Wenlong

2011/10/12 Jothy <jothybasu at gmail.com>

> Can you check the output of your imgFilter is as expected?
>
> Jothy
>
>
> On Wed, Oct 12, 2011 at 11:21 AM, Wenlong Wang <scc.wwl at gmail.com> wrote:
>
>> What do you mean by fill image data?
>>
>> Here is my code,
>>
>>     imageFilter->SetInput(renWin);
>>     renWin->Finalize();
>>     imageFilter->Update();
>>
>>     vtkJPEGWriter* jw = vtkJPEGWriter::New();
>>     imageFilter->SetMagnification(
>>  2);
>>     imageFilter->SetInputBufferTypeToRGBA();
>>     imageFilter->Update();
>>     jw->SetFileName("testpicture.jpg");
>>     jw->SetInput(imageFilter->GetOutput());
>>     jw->Write();
>>
>>
>> Thank you very much.
>>
>> Wenlong
>>
>>
>> 2011/10/12 Jothy <jothybasu at gmail.com>
>>
>>> Have you filled your imaeg data first?
>>>
>>> Jothy
>>>
>>>   On Wed, Oct 12, 2011 at 11:15 AM, Wenlong Wang <scc.wwl at gmail.com>wrote:
>>>
>>>>  Dear all,
>>>>
>>>> As I try to catch a screen shot of my model, there is a window pops out
>>>> and shows the following error information.
>>>>
>>>> 'ERROR: In ..\..\VTK\Filtering\vtkImageData.cxx, line 1467
>>>> vtkImageData (02468790): GetScalarPointer: Pixel (0, 0, 0) not in
>>>> memory.
>>>>  Current extent= (0, -1, 0, -1, 0, 0)'
>>>>
>>>> According to this, it says the pixel at (0, 0, 0) doesn't exist. But it
>>>> obviously appear in the screen.
>>>>
>>>> Can anyone tell me how to resolve this? Thank you very much.
>>>>
>>>> Wenlong
>>>>
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>>>
>>>
>>> --
>>> Jothybasu K Selvaraj
>>> PhD Student
>>> University of Liverpool
>>> Liverpool,UK
>>>
>>>
>>
>
>
> --
> Jothybasu K Selvaraj
> PhD Student
> University of Liverpool
> Liverpool,UK
>
>
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