Copy output of nested filter to output of outer filter

1

Hello,

i want to copy the output of a nested filter to outer filter. The outer filter has the OutputImagePointer set (w.r. t. region, size, etc.) and I want to replace the output with the result from the nested filter. The images have the same size and PixelType. This looks similar to following code:

inside OuterFilter::GenerateData()
{
[…]
OutputImagePointer output = this->GetOutput();

[... other filter is running, m_OtherFilter is a member variable, it doesnt need to be in a pipeline]

this->m_OtherFilter->Update();
Output = this->m_OtherFilter->GetOutput(); // Now Output is the output from OtherFilter->GetOutput()
}

If I call OuterFilter->GetOutput() later on it will return the OutputImagePointer that was set before the OuterFilter::GenerateData() call.

How do I get the output from the outer filter to be replaced by the output from the inner filter?
If more informations needed please ask. Thank you in advance.

Sincerly,
Gordian

Edit: Moved topic to Uncategorized because no explicit Algorithm is discussed.

2

Found a possible way to resolve this.
If you set the output in the superclass then it will work:

{
[…]
Output = this->m_OtherFilter->GetOutput(); // Now Output is the output from OtherFilter->GetOutput()
this->Superclass::SetPrimaryOutput(Output);
}

i am not sure if this will fix it but at least the image from the nested filter is the output of the outer filter.

3

I am not sure what you are doing. I need a large example to under stand better to help. I’d recommend creating a small example to share what you are trying to do and the problem you have encountered.

4

The method you might be looking for is Graft. You can search for examples of how to use it.

5

It was the Graft() method I was looking for.
Thank you.
The example for the minipipeline was very helpful.

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