[Paraview] particle traces from point data

Alex Barrie abarrie at gmail.com
Fri Dec 1 16:04:02 EST 2017


That got it, thanks!
Alex


On Fri, Dec 1, 2017 at 3:59 PM, Joachim Pouderoux <
joachim.pouderoux at kitware.com> wrote:

> Alex,
>
> The problem appears because the output of this Visit-based reader is a
> multiblock.
>
> Here is a workaround: apply a *Merge Block* filter on your input data,
> then apply the *Temporal Particles To Pathline* filter.
>
> Best,
>
> *Joachim Pouderoux*, PhD
>
> *Technical Expert - Scientific Computing Team*
> *Kitware SAS <http://www.kitware.fr>*
>
>
> 2017-12-01 14:58 GMT-04:00 Alex Barrie <abarrie at gmail.com>:
>
>> I am attaching the first input file here. Each file has an incremented
>> number in the filename and then I load them all at once using the Point3D
>> reader. I just go to open and select the group, I don't do anything special
>> to load them. Paraview detects them all as part of the same group, and I
>> can play the animation just fine with the VCR controls. Is there a
>> different way to load them specifically as a series?
>>
>> On Fri, Dec 1, 2017 at 1:39 PM, Joachim Pouderoux <
>> joachim.pouderoux at kitware.com> wrote:
>>
>>> Alex,
>>>
>>> Again, could you specify how you are loading your files?
>>> If you open them as a file series, then your data should be considered
>>> as temporal and the filter should work.
>>> See https://www.paraview.org/Wiki/Animating_legacy_VTK_file_series
>>>
>>> Best,
>>>
>>> *Joachim Pouderoux*, PhD
>>>
>>> *Technical Expert - Scientific Computing Team*
>>> *Kitware SAS <http://www.kitware.fr>*
>>>
>>>
>>> 2017-12-01 14:11 GMT-04:00 Alex Barrie <abarrie at gmail.com>:
>>>
>>>> I was able to find this thread that mentions that maybe the input data
>>>> set needs to have a DATA_TIME_STEPS key, but I am not sure how to specify
>>>> this with the point3d data.
>>>> https://public.kitware.com/pipermail/paraview/2016-February/036211.html
>>>>
>>>> Is there a way just to use whatever mechanism the animate functionality
>>>> uses?
>>>>
>>>> On Thu, Nov 30, 2017 at 9:26 AM, Alex Barrie <abarrie at gmail.com> wrote:
>>>>
>>>>> Yes, I have one file per timestep and each file is a list of points,
>>>>> X, Y, Z, C with one point per line. I am loading it with the 'Point3D'
>>>>> input.
>>>>> Thanks!
>>>>> Alex
>>>>>
>>>>>
>>>>> On Thu, Nov 30, 2017 at 9:18 AM, Joachim Pouderoux <
>>>>> joachim.pouderoux at kitware.com> wrote:
>>>>>
>>>>>> Alex,
>>>>>>
>>>>>> Could you specify how is your data split over time? Do you have one
>>>>>> file per timestep? How do you load your data with ParaView?
>>>>>>
>>>>>> Joachim
>>>>>>
>>>>>> *Joachim Pouderoux*, PhD
>>>>>>
>>>>>> *Technical Expert - Scientific Computing Team*
>>>>>> *Kitware SAS <http://www.kitware.fr>*
>>>>>>
>>>>>>
>>>>>> 2017-11-30 9:55 GMT-04:00 Alex Barrie <abarrie at gmail.com>:
>>>>>>
>>>>>>> Thanks, I see it now - I missed it because it wasn't in the
>>>>>>> "Temporal" tab.
>>>>>>>
>>>>>>> When I apply this filter, however, I get an error about a missing
>>>>>>> DATA_TIME_STEPS information key. Is this something I can specify or does it
>>>>>>> have to be in the raw data somehow?
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Alex
>>>>>>>
>>>>>>>
>>>>>>> On Wed, Nov 29, 2017 at 3:13 PM, Joachim Pouderoux <
>>>>>>> joachim.pouderoux at kitware.com> wrote:
>>>>>>>
>>>>>>>> Alex,
>>>>>>>>
>>>>>>>> I think here the filter "Temporal Particles to Pathlines" should do
>>>>>>>> the trick.
>>>>>>>>
>>>>>>>> Best,
>>>>>>>> Joachim
>>>>>>>>
>>>>>>>> *Joachim Pouderoux*, PhD
>>>>>>>>
>>>>>>>> *Technical Expert - Scientific Computing Team*
>>>>>>>> *Kitware SAS <http://www.kitware.fr>*
>>>>>>>>
>>>>>>>>
>>>>>>>> 2017-11-29 14:33 GMT-04:00 Alex Barrie <abarrie at gmail.com>:
>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> I have animated particles which are imported from point data
>>>>>>>>> (x,y,z). I want to add a particle trace, but I am not sure what to put for
>>>>>>>>> the 'seed'. I am not using a vector field, but rather just a list of
>>>>>>>>> particle positions that updates over time. How can I just add a trace to
>>>>>>>>> each particle in the list?
>>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>> Alex
>>>>>>>>>
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>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
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