Hi John, the error messages about Multiblock Dataset is showing when I dont use a temporal cache on my input. I tried using just a line source for seed points and I dont get any errors about that. So the problem is: If I just use particletracer on my input and line soure I get error saying Dataset is Multiblock Dataset which is not required. If a use a temporal cache on my input and then make a line source as seed points and connecting the two using the particletracer, it gives error saying dataset is TemporalDataset which is not required. I dont have any idea have to come around this problem. Is there another way to follow 3d flow in a good manner? I've tried streamtracer but dont think you get a clear view.
ERROR: In /Users/kitware/Berk/ParaView3/VTK/Filtering/vtkDemandDrivenPipeline.cxx, line 822 vtkCompositeDataPipeline (0x1ff6cd60): Input for connection index 0 on input port index 1 for algorithm vtkTemporalStreamTracer(0x1ff6cdf0) is of type vtkTemporalDataSet, but a vtkDataSet is required. Cheers, Martin Uppman -------------------------------------------------------------------------- > Martin > > Looking at your earlier message it seems like you are setting the seed > points using a MultiBlock datastructure. I don't think I've enabled > support for multiblock seed points (I will do so after clicking send, but > you won't get it for some time). Please try converting your seed points > to a simple dataset and retry. The error message saying DataSet is > required is on port 1 (seeds) - not port 0 (vector field) - I didn't > notice this before. Sorry. Try unsing a line source to start and see if > everything works. then move on to more sophisticated stuff. > > JB > > Sorry, but this doesnt make any sense to me. I have a 3D dataset with > magnitude and velocity (X,Y,Z) for 13 time frames. And as you wrote, > paraview internally converts multiple vktDataSets into a > TemporalDataSet. But particle tracer requires multiple time steps, why > does it then give error that a vktDataSet is required? A vktDataSet, > according to what you wrote, is just a single timestep. Martin > Martin A single timestep is a vtkDataSet, > StremTracer generates streamline through a vector field for this data. > The ParticleTracer requires multiple time steps to advect particles > through the field over time. The particle tracer requests 2 time > steps per iteration from it's input, internally paraview converts > multiple vtkDataSets from the input into a TemporalDataSet. JB > 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 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 > _______________________________________________ Powered by > www.kitware.com Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html Please keep > messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView Follow this link to > subscribe/unsubscribe: > http://www.paraview.org/mailman/listinfo/paraview -- 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 > _______________________________________________ Powered by > www.kitware.com Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html Please keep > messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView Follow this link to > subscribe/unsubscribe: > http://www.paraview.org/mailman/listinfo/paraview > _______________________________________________ Powered by > www.kitware.com Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html Please keep > messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView Follow this link to > subscribe/unsubscribe: > http://www.paraview.org/mailman/listinfo/paraview -- 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 > _______________________________________________ Powered by > www.kitware.com Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html Please keep > messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView Follow this link to > subscribe/unsubscribe: > http://www.paraview.org/mailman/listinfo/paraview > > -- 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 _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
