[Paraview] particletracer

[Martin Uppman]

Thanks you, I can now conenct the two sources. I tried on Windows and
found this alternative if I want to use "input" or "source" in the
particle tracer. When choosing "source" I could select both dataset and
seed source. Problem on my Mac was that the dialog box was to small so I
didnt find this option.

Btw what is the difference between vtkTemporalDataSet and vktDataSet?
ParticleTracer requires vktDataSet which I dont have, is it possible to
convert the dataset somehow.
I can use filter StreamTracer on my dataset and because StreamTracer and
ParticleTracer is based on the same physics, I should be able to visualize
particles.


ERROR: In
/Users/kitware/Berk/ParaView3/VTK/Filtering/vtkDemandDrivenPipeline.cxx,
line 822
vtkCompositeDataPipeline (0x225e2020): Input for connection index 0 on
input port index 1 for algorithm vtkTemporalStreamTracer(0x225e20b0) is of
type vtkMultiBlockDataSet, but a vtkDataSet is required.


Cheers,

Martin Uppman




> Can you tell us exactly (detailed, step-by-step) what you are doing?
> That dialog works fine for me (running OS X 10.5).
>
> -berk
>
> On Tue, Feb 10, 2009 at 4:10 AM, Martin Uppman <f04mu at student.lth.se>
> wrote:
>> Hi again,
>>
>> thank you for fast answer John! I'm aware of the problem that my
>> particle
>> tracer doesnt have any seed source, but I have been working for quite
>> awhile sloving this problem. I did as you said, created temporalcache
>> and
>> seed (point seed) but I cant connect the 2 with my particle tracer. I
>> found your (John's) great powerpoint presentation on the web explaining
>> everything there is to explain. Though I cant make it work!!! In one of
>> the pictures in the presentation there are some boxes where you can
>> choose
>> which sources to use in the particle tracer (in object inspector ->
>> properties -> source). I dont have that option in my program. Does
>> someone
>> know why (using v3.4.0 on a Mac)?
>> About v3.4.0, isnt it the lastest version? Cant fint anything newer on
>> paraview.org.
>>
>> Cheers,
>>
>> Martin Uppman
>>
>>
>>
>>
>>
>>> Martin
>>>
>>>
>>>> ERROR: In
>>>> /Users/kitware/Berk/ParaView3/VTK/Filtering/vtkDemandDrivenPipeline.cxx,
>>>> line 722
>>>> vtkCompositeDataPipeline (0x217c7fb0): Input port 1 of algorithm
>>>> vtkTemporalStreamTracer(0x1e345e00) has 0 connections but is not
>>>> optional.
>>>>
>>> Input 0 should be a time dependent dataset. It is best to use a
>>> TemporalCache before the particle tracer to stop multiple updates for
>>> the same time step. Input 1 should be some seed points.
>>>
>>> Ensight -> TemporalCache      ->
>>>                                  ParticleTracer
>>> Some Other data eg.line/plane ->
>>>
>>> the ignore pipeline time option is provided to get around some
>>> animation
>>> issues that used to plague paraview. You should not need it, but the
>>> correct way to use it, is set  IgnorePipelineTime to true, then set an
>>> animation keyframe to animate TimeStep from 0->N - the particle tracer
>>> will then use the timestep to generate update times for the Ensight
>>> input, instead of usigin the GUI generated time.
>>>
>>> If you are using the particle tracer from prior to 3.4 then you should
>>> switch to a newer one as it is contiunually being improved. I will soon
>>> (months, not days) be checking in a lot of changes which enable it to
>>> handle dynamic meshes better.
>>>
>>> JB
>>>
>>>> I've been looking for information on this and a found a thread which I
>>>> think concerns the same problem. In that thread Berk made a patch to
>>>> fix
>>>> this problem.
>>>> I also tried to ignore pipeline time, but this doent work. I'm working
>>>> with .case files and I want to animate the blood flow in a human heart
>>>> using particle tracers. I'm using a Mac with ParaView version 3.4.0.
>>>>
>>>> Thanks for looking into this.
>>>>
>>>> Cheers,
>>>>
>>>> Martin Uppman
>>>>
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>>>
>>>
>>> --
>>> John Biddiscombe,                            email:biddisco @ cscs.ch
>>> http://www.cscs.ch/
>>> CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.07
>>> Via Cantonale, 6928 Manno, Switzerland      | Fax:  +41 (91) 610.82.82
>>>
>>>
>>>
>>
>>
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>