[Paraview] Multiblock Dataset: Extract Block in Python

[Bastil2001 at yahoo.de]

Fabian,

I don't know but I don't mind either. I use my workaround mentioned
below without any problems so far. The only limitation it has is it is
only woking with multi-block datasets of dimension one (Ensight-Reader,
some_wall_name) but not with the parallel OpenFOAM reader (Dimension
two: Patches -> some_wall_name). I have no solution for this so far.

Regards Bastian

Am 06.03.2011 20:57, schrieb Fabian Braennstroem:
> Hi,
>
> I wonder, if this works now in the current 3.10 release!?
>
> Best Regards!
> Fabian
>
> On 01/19/2010 10:25 PM, Bastil2001 at yahoo.de wrote:
>> Thanks Utkarsh, Berk:
>>
>> I found a similar posting:
>>
>> http://www.mail-archive.com/paraview@paraview.org/msg02936.html. Is
>> there o bug for it so far?
>>
>> My current workaround is to extract BLocks (from EnsightReader) and
>> numbering them using Python functinality:
>>
>> dict ={}
>> source = GetActiveSource()
>> if not source:
>>      raise RuntimeError, "This macro needs an active pipeline object"
>> source.UpdatePipeline()
>> cdi = source.GetDataInformation().GetCompositeDataInformation()
>> blocks = cdi.GetNumberOfChildren()
>> for i in range(blocks):
>>      dict.update(cdi.GetDataInformation(i) : i+1)
>>
>>
>> Afterwards dictionary dict contains name of the block and its according
>> index. However it only works if:
>>
>>     * Blocks are numbered starting from one without spaces
>>
>> This was the case for all my tests so far. Is this always right?
>>
>> Regards.
>>
>>
>> Am 19.01.2010 16:37, schrieb Utkarsh Ayachit:
>>> Currently there no easy way of extract blocks given there names.
>>> Please feel free to add a feature request to the bug tracker.
>>>
>>> http://paraview.org/Bug/
>>>
>>> Utkarsh
>>>
>>> On Fri, Jan 15, 2010 at 5:29 PM, BastiL2001<bastil2001 at yahoo.de> 
>>> wrote:
>>>
>>>> Dear all,
>>>>
>>>> I want to extract certain zones (using name filtering) from an
>>>> Ensight MultiBlock Reader.
>>>> Currently I have the names of the zones to extract in a Python
>>>> list. I do not know how to proceed. I guess I need to get the IDs
>>>> of these zones? How to do that? How to extract the zones?
>>>> I am working with Paraview 3.6.2 and the Trace did not help me much
>>>> for this. Where do I get some more documentation than in the wiki?
>>>> Thanks.
>>>>
>>>> Regards BastiL
>>>>
>>>>
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>>>
>>
>>
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>