[Paraview] Extract Block not working properly?

[Utkarsh Ayachit]

Hi Takuya,

I've just committed a fix for this bug in the CVS. Feel free to give it 
a try and post back if you see some issues.

Thanks,
Utkarsh

Utkarsh Ayachit wrote:
> Hi Takuya,
> 
> That is a bug. However, the bug is not in the filter -- the code you 
> pointed out is there to pass the entire tree if the root node was indeed 
> the block that the user choose to extract. The problem is that the GUI 
> marks the root node as selected when a dataset under its only child node 
> is selected. I am looking into it. I will post something as soon as I 
> have a solution.
> 
> Thanks,
> Utkarsh
> 
> OSHIMA Takuya wrote:
>> Hi,
>>
>> The recent major changes in composite datasets for the CVS head looks
>> very intersting. However I have a problem: the Extract Block filter
>> for a single node with multiple datasets doesn't work as intended.
>>
>> That is, when I only have Node 0 under Root, even if I deselct some of
>> the datasets under the node I still see the complete detasets as
>> output. But if I have 2 nodes under Root and deselect some of the
>> datasets under Node 0, Extract Block works exactly as intended
>> (removes deselcted datasets).
>>
>> Further, I found by removing the following code at lines 109-114 of
>> ParaView3/VTK/Graphics/vtkExtractBlock.cxx the filter works as
>> intended for a single node composite dataset.
>>
>>   if (this->Indices->find(0) != this->Indices->end())
>>     {
>>     // trivial case.
>>     output->ShallowCopy(input);
>>     return 1;
>>     }
>>
>> I wonder what is the intension of this piece of code...?
>>
>> Regards,
>> Takuya
>> _______________________________________________
>> ParaView mailing list
>> ParaView at paraview.org
>> http://www.paraview.org/mailman/listinfo/paraview
>>
> 
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