[Paraview] particletracer

[John Biddiscombe]

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