[Paraview] [EXTERNAL] Re: visualise particle paths

[Timothy Charles Fagan]

Thanks Ken, applying the generate ids filter did the trick!

cheers


On 2 May 2014 03:49, Moreland, Kenneth <kmorel at sandia.gov> wrote:

>   It sounds like the particles you are extracting are different from one
> time step to the next. As you have probably guessed already, the Temporal
> Particles To Pathlines filter assumes that the particles are consistent
> from one time step to the next. If the number or order of particles
> changes, then the filter will draw lines between different points.
>
>  You need to make sure the particle pathlines filter can uniquely
> identify the particles from one step to the next. Try first running the
> Generate Ids filter *before* doing the extraction. Then in the properties
> for the particle pathlines filters, select the variable Ids for the Id
> Channel Array. That might do the trick.
>
>  -Ken
>
>   From: Timothy Charles Fagan <tcfag1 at student.monash.edu>
> Date: Thursday, May 1, 2014 8:41 AM
>
> To: ParaView Mailing List <paraview at paraview.org>
> Subject: Re: [Paraview] [EXTERNAL] Re: visualise particle paths
>
>   Thanks Ken! that is exactly what I'm looking for.
>
> I've been playing around with it and it works very well when I apply the
> filter directly to my data set. But when I try to extract a region and then
> apply it, the particles are jumping around causing the pathlines to be
> incoherent. I guess that it's reading the wrong particle at the next step.
> I've been using the threshold and extract selection filters to get to the
> region I need. Is there a better way to look at a section of particles
> without this happening? The input data doesn't have a particle key/ID or
> anything, which may be some of the problem.
>
>  cheers
>
>
> On 30 April 2014 02:46, Moreland, Kenneth <kmorel at sandia.gov> wrote:
>
>>   Try the Temporal Particles To Pathlines filter.
>>
>>  -Ken
>>
>>    From: Timothy Charles Fagan <tcfag1 at student.monash.edu>
>> Date: Tuesday, April 29, 2014 8:59 AM
>> To: ParaView Mailing List <paraview at paraview.org>
>> Subject: [EXTERNAL] Re: [Paraview] visualise particle paths
>>
>>   Yes animating them is no problem. What I would like to see is the path
>> that the particles take over time, visualized as a pathline. Visualizing
>> the location of a particle at one point in time is not what I'm after,
>> which is what I see with the animation...
>>
>>
>> On 30 April 2014 00:12, Berk Geveci <berk.geveci at kitware.com> wrote:
>>
>>> I am assuming you have a series of these files? Did you try naming them
>>> in a way that ParaView recognizes as file series and then animating them?
>>>
>>>  See this:
>>>
>>>  http://www.paraview.org/Wiki/ParaView/Users_Guide/Loading_Data
>>>
>>>  -berk
>>>
>>>
>>>  On Tue, Apr 29, 2014 at 8:43 AM, Timothy Charles Fagan <
>>> tcfag1 at student.monash.edu> wrote:
>>>
>>>>    Dear Paraview Community,
>>>>
>>>>  I am trying to visualise pathlines for my particle data. I have a vtk
>>>> file with point coordinates as input.
>>>>
>>>> As an example this is one input file for just three particles. With a
>>>> collection of these, is it possible to view the movement of these particles
>>>> over time?
>>>>
>>>> # vtk DataFile Version 4.2
>>>> Particle data from file output.0 at time 0 ms
>>>> ASCII
>>>> DATASET POLYDATA
>>>> POINTS 3 double
>>>> 0 0 1
>>>> 2 0 0
>>>> 1 1 2
>>>>
>>>>
>>>>
>>>>  There's a few temporal filters, and I've had a play with them but they
>>>> currently produce errors for me, resulting in nothing shown or paraview
>>>> crashing. I have looked through the archives, and it seems there might have
>>>> been a way to do this in an old version, but not right now?
>>>>
>>>>  Thanks
>>>> Tim
>>>>
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>>>
>>
>
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