[ITK-users] [ITK] Problem with itkImageToVTKImageFilter

[siavashk]

I do not think that removing the if statement is the right way. There is a
good reason why the null check is there in itkProcessObject. On the first
pass (before Update() is called), this->GetPrimaryOutput() is null. If you
remove the if-statement, the program terminates with a runtime memory error
when it tries to call
this->GetPrimaryOutput()->SetRequestedRegionToLargestPossibleRegion() on a
null pointer.

It seems that the right way is to call Update() first, so that
this->GetPrimaryOutput() is no longer null.

Is this the intended usage?

Siavash



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