[Paraview] TemporalParticlesToPathlines filter missing scalar

[Berk Geveci]

You can always ask :-)

It's not my class though so I have no idea what those arrays are. Feel free
to dig into the code (VTK/Filters/General/vtkTemporalPathLineFilter.cxx) to
figure it out and contribute updated doc. Or you may want to go to the VTK
developers list. Or bug John Biddiscombe directly (the original author).

Best,
-berk


On Thu, Jul 3, 2014 at 1:44 PM, Bill Sherman <shermanw at indiana.edu> wrote:

> On 07/03/2014 12:57 PM, Berk Geveci wrote:
>
>> It was indeed a bug. Thanks for reporting it Bill. A fix is in the
>> pipeline. It will probably take until next week for it to make into
>> ParaView master.
>>
>
> Sounds good, thanks Berk.
>
> And if, while that's in the pipeline, can I also request an agumentation
> to the documentation -- what is the "TrailId" data that is added to
> the pathlines output?  And also, I noticed that the particles output
> also has an added data value ("GlyphVector") -- what does that do?
>
> (And there's a typo in the beginning of the documentation -- "much"
> should be "must".  Trivial, I know.)
>
>  Best,
>> -berk
>>
>
>         Bill
>
>
>>
>> On Wed, Jul 2, 2014 at 10:22 AM, Bill Sherman <shermanw at indiana.edu
>> <mailto:shermanw at indiana.edu>> wrote:
>>
>>     A followup to my question.
>>
>>     Presuming this is a bug, which means it might require some time to
>>     fix, I went ahead and figured out a work-around.
>>
>>     I just bring up a "Calculator" filter and duplicate the problematic
>>     field ("mass") as "massdup", and then put that through the
>>     TemporalParticlesToPathlines filter. And now I have access to
>>     the data of interest.
>>
>>     Curiously, it's the "massdup" field that is now replaced by "TrailId".
>>
>>     Bill
>>
>>
>>
>>     On 07/01/2014 12:54 PM, Bill Sherman wrote:
>>
>>         On 07/01/2014 10:46 AM, Berk Geveci wrote:
>>
>>             Sounds like a bug. Do you have data/pipeline to reproduce it?
>>
>>
>>         Sure. I put a tar file at:
>>         http://iq-station.org/__downloads/Part2Path_debug.tar.__gz
>>
>>         <http://iq-station.org/downloads/Part2Path_debug.tar.gz>
>>
>>         I included the first 9 steps of the data.
>>
>>             -berk
>>
>>
>>         Thanks,
>>         Bill
>>
>>
>>
>>             On Mon, Jun 30, 2014 at 11:48 PM, Bill Sherman
>>             <shermanw at indiana.edu <mailto:shermanw at indiana.edu>
>>             <mailto:shermanw at indiana.edu <mailto:shermanw at indiana.edu>>>
>>
>>             wrote:
>>
>>             Hello,
>>
>>             I am confused by something that the
>> TemporalParticlesToPathlines
>>             filter seems to be doing. It seems to be deleting or replacing
>>             one of the scalar fields in the "Pathlines" output.
>>
>>             I have a rather simple pipeline:
>>
>>             Data
>>             TemporalInterpolator
>>             TemporalParticlesToPathlines
>>             Pathlines
>>             Tube
>>             Particles
>>             Glyph
>>
>>             So the data has a handful of scalar values:
>>             * density
>>             * id
>>             * mass
>>             * type
>>             * velocity (okay, not a scalar)
>>             * vphi
>>
>>             And all the filters offer these as available to color the data
>>             by -- except! Except under the Pathlines (and Tube), the
>> "mass"
>>             data is replaced by "TrailId".
>>
>>             Of course, I'm trying to color the pathlines by the value of
>> the
>>             particle "mass", so this is a problem for me.
>>
>>             And I'm using the "id" field to make sure the particles are
>>             properly
>>             associated with their past selves in the
>>             "TemporalParticlesToPathlines"
>>             filter.
>>
>>             Any thoughts? Didn't find anything via Google (though I
>>             limited the
>>             search to the past year).
>>
>>             Oh, and I tried this both with ParaView versions 4.0.1 and
>>             4.1.0.
>>
>>             Thank you,
>>             Bill
>>
>>             --
>>             Bill Sherman
>>             Sr. Technology Advisor
>>             Advanced Visualization Lab
>>             Pervasive Technology Inst
>>             Indiana University
>>             shermanw at indiana.edu <mailto:shermanw at indiana.edu>
>>             <mailto:shermanw at indiana.edu <mailto:shermanw at indiana.edu>>
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