[vtkusers] Casting vtkPNGReader to vtkImageReader2

[John Eke]

Thanks Amy,

I am trying to find a way to successfully call SetInput and 
SetInputConnection on vtkPNGReader. I have a scenario where I am reading 
a PNG file and displaying it, but external classes need access to the 
image data, ie external processes need to be able to connect to the 
pipeline via SetInput and SetInputConnection.

Would you suggest I maybe save the image in some filter without any 
transformations? that way the input and output image data remain the 
same and I also have access to SetInput, SetInputConnection, GetOutput 
and GetOutputPort

Thanks

Amy Squillacote wrote:
> Hi John,
>
> What are you trying to do? vtkPNGReader is a direct subclass of 
> vtkImageReader2.
>
> - Amy
>
> John Eke wrote:
>> Hi,
>>
>> I have read an image using vtkPNGReader, I was wondering how I can 
>> safely transfer all that information into vtkImageReader2
>>
>> - John
>> _______________________________________________
>> 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
>>
>>
>