[Paraview] Wrong fetched data

Cory Quammen cory.quammen at kitware.com
Sun Jul 12 23:33:58 EDT 2015


Interesting. Is is possible for you to share the data file(s)?

Thanks,
Cory

On Mon, Jul 6, 2015 at 10:23 AM, deq11009 <deq11009 at fe.up.pt> wrote:

> Hi,
>
> Thank you for your reply.
>
> No, the mistake is not there. In the meantime I did realize what is
> exactly happening.
>
> I have, say, 200 timesteps.
> From 0 to 6, data obtained from my code matches the data when I just use
> the GUI.
> Starting in timestep 7 (always) till the end, data (for all timesteps) is
> the data from the last timestep.
> So, when in python shell I go to timestep 6, I see timestep 6. But when I
> go to timestep 7, or 100, or 133, I see timestep 199. At the same time, if
> I go to the GUI, everything is ok.
>
> By coincidence, the ".case" time step data is organized in seven columns.
> Is this related to the problem?
>
> Thank you
> Filipe Direito
>
>
> On 03.07.2015 15:05, Cory Quammen wrote:
>
>> Hi Filipe,
>>
>> Perhaps the array at index 7 is not the array you are expecting? Could
>> you access the array by name instead, .e.g.,
>>
>> dAxis.GetPointData().GetArray(variable_name).GetValue(150)
>>
>> and see if that works better?
>>
>> Thanks,
>> Cory
>>
>> On Wed, Jul 1, 2015 at 1:44 PM, deq11009 <deq11009 at fe.up.pt [6]>
>> wrote:
>>
>>  Hi,
>>>
>>> I am currently using Paraview 4.2, 64, in Windows. (but tried 4.3
>>> and same problem happened)
>>>
>>> My case is Ensight transient. Cylinder with 3.6 million cells,
>>> two-phase flow.
>>>
>>> I created a python code, which I run from the shell in the GUI.
>>>
>>> The main parts of the code are:
>>>
>>> enscase = EnSightReader(CaseFileName = direcp + ensfinal.case)
>>> ...
>>> axis = Line()
>>> ...
>>> rAxis = ResampleWithDataset(Input = enscase , Source = axis)
>>> ...
>>> rAxis.SMProxy.UpdatePipeline(7) # enscase.SMProxy yields same
>>> problem
>>> rAxis.UpdatePipelineInformation()
>>> dAxis = servermanager.Fetch(rAxis)
>>>
>>> Now, for example:
>>> print dAxis.GetPointData().GetArray(7).GetValue(150)
>>> which gives me the value 150 of the phase array.
>>>
>>> This data is wrong. On the other hand, if I go to the GUI Pipeline
>>> and create a Spreadsheet, the values are the real ones (confirmed in
>>> Fluent).
>>>
>>> So, the fetched data in the python shell is, for some reason,
>>> wrong.
>>> What is my mistake?
>>>
>>> Thanks
>>> Filipe Direito
>>>
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>
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>
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-- 
Cory Quammen
R&D Engineer
Kitware, Inc.
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