[vtk-developers] No api for vtkAlgorithm::SetInputData()

[Robert Michael O'Bara]

I guess you can always make a trivial producer and set its input to aDataCopy.  This is exactly what SetInputDataInternal does.  But if it is always ok to build a trivial producer then it seems it should be ok to make this method public but probably it should then be made virtual as well as it can be overridden.

Just my 2 cents :)

Bob

Robert M. O'Bara, MEng.
Technical Leader

Kitware Inc.
28 Corporate Drive
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Phone: (518) 881- 4931

On Apr 12, 2012, at 7:32 PM, Bill Lorensen wrote:

> I agree that this is a problem...
> 
> On Thu, Apr 12, 2012 at 6:29 PM, Pat Marion <pat.marion at kitware.com> wrote:
>> Here is a example, which may not be very common, but I had it in my code...
>> 
>> void foo(vtkAlgorithm* aFilter, vtkDataObject* aData)
>> {
>>   vtkDataObject* aDataCopy = copyData(aData);
>>   aFilter->SetInputConnection(aDataCopy->GetProducerPort());
>>   ...
>> }
>> 
>> In VTK 6, I can't find a generic way to connect a data object to an
>> algorithm.
>> I have to create a trivial producer (reimplement
>> vtkAlgorithm::SetInputDataInternal)
>> 
>> I'm curious if there is a reason not to change protected
>> SetInputDataInternal to public SetInputData?
>> 
>> Most subclasses define SetInputData as:
>> 
>> void vtkPolyDataAlgorithm::SetInputData(int index, vtkDataObject* input)
>> {
>>   this->SetInputDataInternal(index, input);
>> }
>> 
>> 
>> Pat
>> 
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> 
> 
> 
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