[Paraview] Concept: A world without the Apply button

[David Thompson]

Hi Utkarsh,

I like the idea. One possible problem that comes to mind is filters  
that produce different output types based on the input. Will enough of  
the metadata be passed through the pipeline before Execute() is called  
for those filters to hint at their output type? Otherwise, you'll be  
forced to hit Execute before adding any more filters.

	David

On Jun 1, 2011, at 12:30 , Utkarsh Ayachit wrote:

> Folks,
>
> I have been investigating the ability to create pipelines in ParaView
> without having to hit Apply at every single stage in the pipeline.
> This would make it much easier to deal with really large data in a
> usage scenario where the scientist is fairly familiar with the
> visualization pipeline he's interested in setting up.
>
> Following the recent changes to the ParaView ServerManager, the
> ServerManager level requirement that filters need to be updated before
> connecting has disappeared. However, we still need to "Apply" to get
> updated information about arrays etc.
>
> After a couple on discussions with Berk and Dave, I've consolidated
> the thoughts on a Wiki page. If any one has any thoughts to share, it
> would be great.
>
> http://www.paraview.org/ParaView3/index.php/No-Apply_Mechanism_for_Creating_Pipelines
>
> Note that this is merely a concept. We have no plans of implementing
> it in near future (3.12/4.0).
>
> Utkarsh
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