[vtkusers] Input type validity

[Marc Ferland]

Hi David,

Thanks for your advice. I'll definitely have a look at your proposition.

BTW, how do you guys do it in paraview? Is it a best effort method or is
the node compatibility hard-coded? By best-effort I mean testing the
input port information object against the output port information. If
both really have incompatible types then the link is impossible.

Regards,

Marc

David E DeMarle <dave.demarle at kitware.com> writes:

> A prettier way would be to make a new executive class that exists just
> to provide a public method that internally calls that one.
>
> But what happens when you promote that method to public? Does it
> compile without warnings? Does it work the way you want? Do any tests
> fail because of doing that? If not we can push the change through
> gerrit code review, and if the reviewers agree it will go into
> mainline vtk.
>
> David E DeMarle
> Kitware, Inc.
> R&D Engineer
> 21 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-881-4909
>
>
>
> On Fri, Feb 10, 2012 at 4:04 PM, Marc Ferland <ferlandm at sonatest.com> wrote:
>> Hi,
>>
>> I'm currently writing a small "pipeline editor" using VTK and I wanted
>> to know if there is any way to test if a SetInputConnection will fail
>> before actually sending data throught the pipe?
>>
>> I see that vtkDemandDrivenPipeline::InputTypeIsValid() implements this,
>> but since it is protected, I do not have access to it.
>>
>> Should I just copy/paste the algorithm described in InputTypeIsValid?
>>
>> Any suggestions appreciated!
>>
>> Regards,
>>
>> Marc
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