[Paraview] Getting Blocks Selection

[Rafael March]

Hi Utkarsh,

thanks for the tip. I'm trying now to use the vtkExtractSelection filter, but it requires two inputs: a vtkSelection object, and the Model, whose block will be extracted, according to the selection. The question now is: how to get the vtkSelection object which corresponds to my current selection made in Paraview ? I can only manage to get a pqSelectionManager object in my filter.

Thanks again for the help.

Regards,
Rafael.

--- On Mon, 6/15/09, Utkarsh Ayachit <utkarsh.ayachit at kitware.com> wrote:

From: Utkarsh Ayachit <utkarsh.ayachit at kitware.com>
Subject: Re: [Paraview] Getting Blocks Selection
To: "Rafael March" <rafaelmarch3 at yahoo.com>
Cc: paraview at paraview.org
Date: Monday, June 15, 2009, 3:13 PM

Currently there's no direct way of converting from block to id-based selection. vtkConvertSelection does not handle the case where the input is a block-based selection.  Feel free to add a feature request to the bug tracker..

 
A possible alternative would be to apply the ExtractSelection filter and then fetch the resulting dataset to the client. That will have the ids for the extracted block.

Utkarsh


On Mon, Jun 15, 2009 at 10:53 AM, Rafael March <rafaelmarch3 at yahoo.com> wrote:


Hi,

I want to get the global Ids of the nodes selected through
selection inspector, using a "Block Selection" to choose a part of the
model. 

I thought I would be able to retrieve the ids of the
cells (or points) with the method pqSelectionManager::getIndices() or
pqSelectionManager::getGlobalIds(), but none of them retrieve any Ids
when I make the selection of a block.

Which is the right way to get this information ?

Regards,
Rafael.


      
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