Re: [Paraview] particle tracking on top of unsteady flow solution
wow, thanks a lot for this! I am on a report deadline at the moment but will try it afterwards. I guess the easiest way is just to write integers (1, 2, 3 ...) as the timesteps to the cgns file which should make the mapping work without problems. In any case, I will fiddle around a bit with what you give me, should be able to make it work, if I have serous problems I might contact you again but think this is already all I need :) cheers, tom Berk Geveci berk.gev...@kitware.com schrieb am 20:35 Dienstag, 20.Mai 2014: OK try this. Apply a Programmable Filter to the csv file. Turn on advanced properties on that panel and use the following scripts: Script: oi = self.GetOutputInformation(0) ut = oi.Get(vtk.vtkStreamingDemandDrivenPipeline.UPDATE_TIME_STEP()) t = inputs[0].RowData['t'] output.RowData.append(numpy.transpose(inputs[0].RowData['x'][t==ut]), 'x') output.RowData.append(numpy.transpose(inputs[0].RowData['y'][t==ut]), 'y') output.RowData.append(numpy.transpose(inputs[0].RowData['z'][t==ut]), 'z') RequestInformation script: oi = self.GetOutputInformation(0) oi.Remove(vtk.vtkStreamingDemandDrivenPipeline().TIME_STEPS()) oi.Append(vtk.vtkStreamingDemandDrivenPipeline().TIME_STEPS(), 0) oi.Append(vtk.vtkStreamingDemandDrivenPipeline().TIME_STEPS(), 1) oi.Remove(vtk.vtkStreamingDemandDrivenPipeline().TIME_RANGE()) oi.Append(vtk.vtkStreamingDemandDrivenPipeline().TIME_RANGE(), 0) oi.Append(vtk.vtkStreamingDemandDrivenPipeline().TIME_RANGE(), 1) The csv file looks like: x,y,z,t 0, 0, 0, 0 1, 0, 0, 0 2, 0, 0, 0 1, 0, 0, 1 2, 0, 0, 1 3, 0, 0, 1 If the column names are different, you can adjust the Script code. After this filter, you can apply Table to Points and Glyph usual way. The heart of this is the inputs[0].RowData['x'][t==ut] bit. This selects elements from an array that fit a certain criteria. In this case t == ut where t is the time column value and ut is the time value requested from the filter by ParaView's animation engine. If you are running into an issue, make sure that the values in the csv file match exactly the values in the simulation file. If there are round off errors, you may have to implement a more complicated logic in the file to round the ut value to one that is closest in the table. Best, -berk On Mon, May 19, 2014 at 5:41 AM, Tom-Robin Teschner tomrobin.tesch...@yahoo.de wrote: Hi Berk, I think option two would be best as I don't use vtu (at least for my animations) + for the sake of animation I can reduce the csv file to contain only 1 particle per location so the csv file would be indeed small. If you could send me the python file I would be very thankful, could you also let me know how to put it into paraview as i have never used the python shell before (in paraview). Thanks, Tom Berk Geveci berk.gev...@kitware.com schrieb am 19:21 Freitag, 16.Mai 2014: Since you want to sync the two, you can't live without the time information, unless the simulation time values are simply an integer sequence of 0, 1, 2, 3 etc. The time value is what ParaView uses to sync sources. So unless you have this particular case, we need to do something to fix the issue. There are two ways I thought of: 1. Using a pvd file pointing to vtu files 2. Doing Python magic to extract particles from a single csv file 2 is very doable and fun under two conditions: a. the number of particles and the number of time steps are relatively small (otherwise the csv file will be too big) b. you add the time value as another column. If these hold, I can send you a script that does this. Otherwise, I can send you an example file collection of pvd/vtu files. -berk On Thu, May 15, 2014 at 5:48 PM, Tom-Robin Teschner tomrobin.tesch...@yahoo.de wrote: thanks berk, thanks for the reply. i can live without the time information, but would paraview automatically map the csv file to the flow solution that i would load before? the problem is that i have one cgns file containing all flow solutions so i wonder if paraview would know which csv file to use. i'll probably give it a try in the next days when i have some time, but thanks again for your reply. cheers, tom Berk Geveci berk.gev...@kitware.com schrieb am 15:59 Dienstag, 13.Mai 2014: Hi Tom-Robin, ParaView does not support having a time series of particles within a single csv file. You can have a file series of csv files as described here: http://www.paraview.org/Wiki/ParaView/Users_Guide/Loading_Data Unfortunately, you will not be able to specify a time value in this case. ParaView will pick 0, 1, 2 etc. To be able to specify time values, you will have to use a format such as pvd or Xdmf. Of course, I just noticed that we have absolutely no documentation on the PVD format :-) We'll fix that. Here is some info: http://www.cacr.caltech.edu/~slombey/asci/vtk/ Xdmf is better documentation. Both of these formats support ASCII content. Xdmf supports having all of the data in one
Re: [Paraview] particle tracking on top of unsteady flow solution
OK try this. Apply a Programmable Filter to the csv file. Turn on advanced properties on that panel and use the following scripts: Script: oi = self.GetOutputInformation(0) ut = oi.Get(vtk.vtkStreamingDemandDrivenPipeline.UPDATE_TIME_STEP()) t = inputs[0].RowData['t'] output.RowData.append(numpy.transpose(inputs[0].RowData['x'][t==ut]), 'x') output.RowData.append(numpy.transpose(inputs[0].RowData['y'][t==ut]), 'y') output.RowData.append(numpy.transpose(inputs[0].RowData['z'][t==ut]), 'z') RequestInformation script: oi = self.GetOutputInformation(0) oi.Remove(vtk.vtkStreamingDemandDrivenPipeline().TIME_STEPS()) oi.Append(vtk.vtkStreamingDemandDrivenPipeline().TIME_STEPS(), 0) oi.Append(vtk.vtkStreamingDemandDrivenPipeline().TIME_STEPS(), 1) oi.Remove(vtk.vtkStreamingDemandDrivenPipeline().TIME_RANGE()) oi.Append(vtk.vtkStreamingDemandDrivenPipeline().TIME_RANGE(), 0) oi.Append(vtk.vtkStreamingDemandDrivenPipeline().TIME_RANGE(), 1) The csv file looks like: x,y,z,t 0, 0, 0, 0 1, 0, 0, 0 2, 0, 0, 0 1, 0, 0, 1 2, 0, 0, 1 3, 0, 0, 1 If the column names are different, you can adjust the Script code. After this filter, you can apply Table to Points and Glyph usual way. The heart of this is the inputs[0].RowData['x'][t==ut] bit. This selects elements from an array that fit a certain criteria. In this case t == ut where t is the time column value and ut is the time value requested from the filter by ParaView's animation engine. If you are running into an issue, make sure that the values in the csv file match exactly the values in the simulation file. If there are round off errors, you may have to implement a more complicated logic in the file to round the ut value to one that is closest in the table. Best, -berk On Mon, May 19, 2014 at 5:41 AM, Tom-Robin Teschner tomrobin.tesch...@yahoo.de wrote: Hi Berk, I think option two would be best as I don't use vtu (at least for my animations) + for the sake of animation I can reduce the csv file to contain only 1 particle per location so the csv file would be indeed small. If you could send me the python file I would be very thankful, could you also let me know how to put it into paraview as i have never used the python shell before (in paraview). Thanks, Tom Berk Geveci berk.gev...@kitware.com schrieb am 19:21 Freitag, 16.Mai 2014: Since you want to sync the two, you can't live without the time information, unless the simulation time values are simply an integer sequence of 0, 1, 2, 3 etc. The time value is what ParaView uses to sync sources. So unless you have this particular case, we need to do something to fix the issue. There are two ways I thought of: 1. Using a pvd file pointing to vtu files 2. Doing Python magic to extract particles from a single csv file 2 is very doable and fun under two conditions: a. the number of particles and the number of time steps are relatively small (otherwise the csv file will be too big) b. you add the time value as another column. If these hold, I can send you a script that does this. Otherwise, I can send you an example file collection of pvd/vtu files. -berk On Thu, May 15, 2014 at 5:48 PM, Tom-Robin Teschner tomrobin.tesch...@yahoo.de wrote: thanks berk, thanks for the reply. i can live without the time information, but would paraview automatically map the csv file to the flow solution that i would load before? the problem is that i have one cgns file containing all flow solutions so i wonder if paraview would know which csv file to use. i'll probably give it a try in the next days when i have some time, but thanks again for your reply. cheers, tom Berk Geveci berk.gev...@kitware.com schrieb am 15:59 Dienstag, 13.Mai 2014: Hi Tom-Robin, ParaView does not support having a time series of particles within a single csv file. You can have a file series of csv files as described here: http://www.paraview.org/Wiki/ParaView/Users_Guide/Loading_Data Unfortunately, you will not be able to specify a time value in this case. ParaView will pick 0, 1, 2 etc. To be able to specify time values, you will have to use a format such as pvd or Xdmf. Of course, I just noticed that we have absolutely no documentation on the PVD format :-) We'll fix that. Here is some info: http://www.cacr.caltech.edu/~slombey/asci/vtk/ Xdmf is better documentation. Both of these formats support ASCII content. Xdmf supports having all of the data in one file although if you have thousands of time steps, the file may get somewhat bulky. -berk On Thu, May 8, 2014 at 10:59 AM, Tom-Robin Teschner tomrobin.tesch...@yahoo.de wrote: Hi, I am doing particle tracking at the moment and I am visualise my results with paraview. I have a 3D Navier Stokes solver from which I get a CGNS file with the flow solution (for example velocity and vorticity in x, y and z) and I also get csv file where I store position of particles, which i track inside my code. Now
Re: [Paraview] particle tracking on top of unsteady flow solution
Hi Tom-Robin, ParaView does not support having a time series of particles within a single csv file. You can have a file series of csv files as described here: http://www.paraview.org/Wiki/ParaView/Users_Guide/Loading_Data Unfortunately, you will not be able to specify a time value in this case. ParaView will pick 0, 1, 2 etc. To be able to specify time values, you will have to use a format such as pvd or Xdmf. Of course, I just noticed that we have absolutely no documentation on the PVD format :-) We'll fix that. Here is some info: http://www.cacr.caltech.edu/~slombey/asci/vtk/ Xdmf is better documentation. Both of these formats support ASCII content. Xdmf supports having all of the data in one file although if you have thousands of time steps, the file may get somewhat bulky. -berk On Thu, May 8, 2014 at 10:59 AM, Tom-Robin Teschner tomrobin.tesch...@yahoo.de wrote: Hi, I am doing particle tracking at the moment and I am visualise my results with paraview. I have a 3D Navier Stokes solver from which I get a CGNS file with the flow solution (for example velocity and vorticity in x, y and z) and I also get csv file where I store position of particles, which i track inside my code. Now I want to bring them both together, i.e. have an animation of the flowfield (let's say of the x velocity) and on top I want to display the particles at each timestep (so how they move along the flow). the csv file looks something like this (shorten for visualisation): X , Y , Z 0.0068 , 0.52500 , 0.005 0.0593 , 0.52510 , 0.005 0.1171 , 0.52542 , 0.005 I have loaded the particles into paraview and then used tabletopoints from the filters but then I get all the particles displayed, instead of getting one particle per timestep. I have tried to use a fourth column for time but I was unable to map that to my animation. Does anyone have an idea how to solve this? Kind regards, Tom-Robin Teschner ___ 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
[Paraview] particle tracking on top of unsteady flow solution
Hi, I am doing particle tracking at the moment and I am visualise my results with paraview. I have a 3D Navier Stokes solver from which I get a CGNS file with the flow solution (for example velocity and vorticity in x, y and z) and I also get csv file where I store position of particles, which i track inside my code. Now I want to bring them both together, i.e. have an animation of the flowfield (let's say of the x velocity) and on top I want to display the particles at each timestep (so how they move along the flow). the csv file looks something like this (shorten for visualisation): X , Y , Z 0.0068 , 0.52500 , 0.005 0.0593 , 0.52510 , 0.005 0.1171 , 0.52542 , 0.005 I have loaded the particles into paraview and then used tabletopoints from the filters but then I get all the particles displayed, instead of getting one particle per timestep. I have tried to use a fourth column for time but I was unable to map that to my animation. Does anyone have an idea how to solve this? Kind regards, Tom-Robin Teschner___ 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
Re: [Paraview] particle tracking
Marcelo, Is this using OSMesa for offscreen rendering? There was a memory leak in 3.10.0 that has been subsequently fixed when saving animations with OS Mesa and offscreen rendering enabled. Utkarsh On Mon, Feb 20, 2012 at 6:23 AM, Marcelo Emmel marc...@emmel.eng.br wrote: Jean Favre jfavre at cscs.ch writes: Berk Geveci wrote: To animate particles in a steady-state flow field, I'd think that you would generate streamlines and then somehow animate particles along those. this is exactly the technique I use. Generate streamlines. Then iso-contour the streamline object with the scalar field IntegrationTime. Use a single threshold. Then animate the threshold value. Use Mode=Sequence, get a ramp between minimum time and maximun time. Use Glyphs (small spheres or arrows) attached to the iso-valued contours and they will animate their position along the streamlines. Jean Swiss national Supercomputing Center Dear Jean Favre, Thanks a lot, you showed me the way after a long search time! I am facing a new problem now: when making animations, Paraview uses all available memory then crashes (I am using Paraview 3.12.0 64bit). I just can make about 400 frames before crashing. After producing the animation, I do not know how to flush memory, since it remains busy. Thanks a lot and congratulations for your job. Best regards, Marcelo Emmel Mechanical Engineer, MSc www.emmel.eng.br ___ 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
Re: [Paraview] particle tracking
Hi, Utkarsh, sorry I forgot to replay to the list. I wrote Marcelo yesterday "Dear Marcelo, try Edit-Settings-Render View and disable "Use Offscreenrendering for Screenshots". The animation will take more time, but the memory ussage is constant low. We have the same problem when proccessing a large number of timesteps in PV 3.12. Best wishes, Christian " And he said now it's working fine. But in fact, this does not solve the real problem. I have a GTX580 GPU with NVIDIA 290.10 64bit proprietr driver and the same memory leak when proccessing a large number of files (200 by fileseriesreader-vtkreader or my own liggghts plugin reader). Can you please tell me how to check if OSMesa is used or not and how to track down where the memory leak comes from (it is not the reader) ? Thanks, Christian Am 21.02.2012 16:19, schrieb Utkarsh Ayachit: Marcelo, Is this using OSMesa for offscreen rendering? There was a memory leak in 3.10.0 that has been subsequently fixed when saving animations with OS Mesa and offscreen rendering enabled. Utkarsh On Mon, Feb 20, 2012 at 6:23 AM, Marcelo Emmel marc...@emmel.eng.br wrote: Jean Favre jfavre at cscs.ch writes: Berk Geveci wrote: To animate particles in a steady-state flow field, I'd think that you would generate streamlines and then somehow animate particles along those. this is exactly the technique I use. Generate streamlines. Then iso-contour the streamline object with the scalar field "IntegrationTime". Use a single threshold. Then animate the threshold value. Use Mode=Sequence, get a ramp between minimum time and maximun time. Use Glyphs (small spheres or arrows) attached to the iso-valued contours and they will "animate" their position along the streamlines. Jean Swiss national Supercomputing Center Dear Jean Favre, Thanks a lot, you showed me the way after a long search time! I am facing a new problem now: when making animations, Paraview uses all available memory then crashes (I am using Paraview 3.12.0 64bit). I just can make about 400 frames before crashing. After producing the animation, I do not know how to "flush" memory, since it remains busy. Thanks a lot and congratulations for your job. Best regards, Marcelo Emmel Mechanical Engineer, MSc www.emmel.eng.br ___ 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 -- Dipl.-Ing. Christian Richter Lehrstuhl fr Materialflusstechnik Institut fr Logistik und Materialflusstechnik (ILM) Fakultt fr Maschinenbau (FMB) Otto-von-Guericke-Universitt Magdeburg Universittsplatz 2 D-39106 Magdeburg Gebude 10, Raum 213 University Magdeburg Otto-von-Guericke Department of Material Handling Institute of Logistics and Material Handling Systems (ILM) Faculty for Mechanical Engineering (FMB) E-Mail: christian.rich...@ovgu.de Tel.: +49 (0)391/67-12690 NEU Fax: +49 (0)391/67-12646 URL: http://www.ilm.ovgu.de Der Inhalt dieser E-Mail ist vertraulich und ausschlielich fr den bezeichneten Adressaten bestimmt. Wenn Sie nicht der vorgesehene Adressat dieser E-Mail oder dessen Vertreter sein sollten, so beachten Sie bitte, dass jede Form der Kenntnisnahme, Verffentlichung, Vervielfltigung oder Weitergabe des Inhalts dieser E-Mail unzulssig ist. Wir bitten Sie, sich in diesem Fall mit dem Absender der E-Mail in Verbindung zu setzen. ___ 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
Re: [Paraview] particle tracking
Jean Favre jfavre at cscs.ch writes: Berk Geveci wrote: To animate particles in a steady-state flow field, I'd think that you would generate streamlines and then somehow animate particles along those. this is exactly the technique I use. Generate streamlines. Then iso-contour the streamline object with the scalar field IntegrationTime. Use a single threshold. Then animate the threshold value. Use Mode=Sequence, get a ramp between minimum time and maximun time. Use Glyphs (small spheres or arrows) attached to the iso-valued contours and they will animate their position along the streamlines. Jean Swiss national Supercomputing Center Dear Jean Favre, Thanks a lot, you showed me the way after a long search time! I am facing a new problem now: when making animations, Paraview uses all available memory then crashes (I am using Paraview 3.12.0 64bit). I just can make about 400 frames before crashing. After producing the animation, I do not know how to flush memory, since it remains busy. Thanks a lot and congratulations for your job. Best regards, Marcelo Emmel Mechanical Engineer, MSc www.emmel.eng.br ___ 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
[Paraview] particle tracking
I am wondering what the state of this is? I am very interested in this feature. Up to new I used Johns workaround but iso-clipping the streamlines makes my Paraview 3.6.1 crash without any further comment. Regards BastiL I don't think this answers Pei's question. To my knowledge the temporal stream tracer (i.e. particle tracker) works only for time-dependent data. Am I wrong? To animate particles in a steady-state flow field, I'd think that you would generate streamlines and then somehow animate particles along those. I can't think of anything that would do this out-of-box but writing a filter that does this would be pretty easy. Is this something more than a few users would want? -berk On Thu, Feb 12, 2009 at 12:22 AM, David E DeMarle dave.demarle at kitware.com http://www.paraview.org/mailman/listinfo/paraview wrote: / Hi Pei-Ying,/ /// You may want to try ParaView Meshless/ / (https://twiki.cscs.ch/twiki/bin/view/ParaViewMeshless). It is a/ / version of ParaView with the cutting edge of John Biddiscombe's/ / particle tracking work in it. Some of those features will be/have been/ / integrated into the main paraview code, but I can not vouch for when/ / that will happen./ /// cheers,/ / Dave DeMarle/ // /// 2008/12/25 Pei-Ying Hsieh phsieh2005 at yahoo.com http://www.paraview.org/mailman/listinfo/paraview:/ / Dear PVers:/ /// I have a steady state flow field. I am wondering if PV can do particle/ / tracking animation./ /// what I am looking for is similar to pathlines, but, instead of showing the/ / lines, I would like to do an animation of seed particles flowing through/ / the flow field. Is this possible?/ /// Thanks! and wish everyone here a Happy New Year!/ // /// Pei/ // /// ___/ / ParaView mailing list/ / ParaView at paraview.org http://www.paraview.org/mailman/listinfo/paraview/ /// http://www.paraview.org/mailman/listinfo/paraview/ // // // // // /// --/ / David E DeMarle/ / Kitware, Inc./ / RD Engineer/ / 28 Corporate Drive/ / Clifton Park, NY 12065-8662/ / Phone: 518-371-3971 x109/ ___ 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
Re: [Paraview] particle tracking
Hi Berk, Jean, Is this something more than a few users would want? Yes I would b e very interested, Jeans workaround only works for streamlines calculated either forwards or backwards but not both Jean, how do you exactly do please? -Then iso-contour the streamline object with the scalar field IntegrationTime. Use a single threshold. (Contour filter?) -Then animate the threshold value. Use Mode=Sequence, get a ramp between minimum time and maximun time. (How?) -Use Glyphs (small spheres or arrows) attached to the iso-valued contours and they will animate their position along the streamlines. (How?) Thanks BastiL ___ 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
Re: [Paraview] particle tracking
That's great! I've been wondering how to animate streamlines. Regards, Paul 2009/2/12 Jean Favre jfa...@cscs.ch Berk Geveci wrote: To animate particles in a steady-state flow field, I'd think that you would generate streamlines and then somehow animate particles along those. this is exactly the technique I use. Generate streamlines. Then iso-contour the streamline object with the scalar field IntegrationTime. Use a single threshold. Then animate the threshold value. Use Mode=Sequence, get a ramp between minimum time and maximun time. Use Glyphs (small spheres or arrows) attached to the iso-valued contours and they will animate their position along the streamlines. Jean Swiss national Supercomputing Center ___ 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
Re: [Paraview] particle tracking
Berk Oops. I didn't notice that it was a "steady state" flow field. The TemporalStremTRacer expects unsteady flows, however it would be quite simple to modify it to use a single step. (I think easier than taking streamlines and animating particles along them - though thinking about it, the streamtracer code does have all that conversion of cell units to time which would be useful). One could subclass the temporaltreamtracer, suppress the time requests and interpolate over a single step, then output time dependent data where the particles animate along the path (- how many steps would one want?) - clicking the play button would just advect them along. (Just thinking out loud). JB I don't think this answers Pei's question. To my knowledge the temporal stream tracer (i.e. particle tracker) works only for time-dependent data. Am I wrong? To animate particles in a steady-state flow field, I'd think that you would generate streamlines and then somehow animate particles along those. I can't think of anything that would do this out-of-box but writing a filter that does this would be pretty easy. Is this something more than a few users would want? -berk On Thu, Feb 12, 2009 at 12:22 AM, David E DeMarle dave.dema...@kitware.com wrote: Hi Pei-Ying, You may want to try ParaView Meshless (https://twiki.cscs.ch/twiki/bin/view/ParaViewMeshless). It is a version of ParaView with the cutting edge of John Biddiscombe's particle tracking work in it. Some of those features will be/have been integrated into the main paraview code, but I can not vouch for when that will happen. cheers, Dave DeMarle 2008/12/25 Pei-Ying Hsieh phsieh2...@yahoo.com: Dear PVers: I have a steady state flow field. I am wondering if PV can do particle tracking animation. what I am looking for is similar to pathlines, but, instead of showing the lines, I would like to do an animation of seed particles "flowing" through the flow field. Is this possible? Thanks! and wish everyone here a Happy New Year! Pei ___ ParaView mailing list ParaView@paraview.org http://www.paraview.org/mailman/listinfo/paraview -- David E DeMarle Kitware, Inc. RD Engineer 28 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-371-3971 x109 ___ 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
Re: [Paraview] particle tracking
Berk Geveci wrote: To animate particles in a steady-state flow field, I'd think that you would generate streamlines and then somehow animate particles along those. this is exactly the technique I use. Generate streamlines. Then iso-contour the streamline object with the scalar field IntegrationTime. Use a single threshold. Then animate the threshold value. Use Mode=Sequence, get a ramp between minimum time and maximun time. Use Glyphs (small spheres or arrows) attached to the iso-valued contours and they will animate their position along the streamlines. Jean Swiss national Supercomputing Center ___ 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
Re: [Paraview] particle tracking
Interesting. I guess the biggest challenge of doing this in our pipeline would be finding the time range. Ideally, the integration should continue until all particles leave the domain or get stuck in a stagnant region. That would require integrating them first and then looking at the largest integration time. While I was writing this, Jean's response showed up. It is pretty ingenious :-) This is why I love ParaView. It allows you to do things in ways developers did not foresee. -berk On Thu, Feb 12, 2009 at 8:42 AM, John Biddiscombe biddi...@cscs.ch wrote: Berk Oops. I didn't notice that it was a steady state flow field. The TemporalStremTRacer expects unsteady flows, however it would be quite simple to modify it to use a single step. (I think easier than taking streamlines and animating particles along them - though thinking about it, the streamtracer code does have all that conversion of cell units to time which would be useful). One could subclass the temporaltreamtracer, suppress the time requests and interpolate over a single step, then output time dependent data where the particles animate along the path (- how many steps would one want?) - clicking the play button would just advect them along. (Just thinking out loud). JB I don't think this answers Pei's question. To my knowledge the temporal stream tracer (i.e. particle tracker) works only for time-dependent data. Am I wrong? To animate particles in a steady-state flow field, I'd think that you would generate streamlines and then somehow animate particles along those. I can't think of anything that would do this out-of-box but writing a filter that does this would be pretty easy. Is this something more than a few users would want? -berk On Thu, Feb 12, 2009 at 12:22 AM, David E DeMarle dave.dema...@kitware.com wrote: Hi Pei-Ying, You may want to try ParaView Meshless (https://twiki.cscs.ch/twiki/bin/view/ParaViewMeshless). It is a version of ParaView with the cutting edge of John Biddiscombe's particle tracking work in it. Some of those features will be/have been integrated into the main paraview code, but I can not vouch for when that will happen. cheers, Dave DeMarle 2008/12/25 Pei-Ying Hsieh phsieh2...@yahoo.com: Dear PVers: I have a steady state flow field. I am wondering if PV can do particle tracking animation. what I am looking for is similar to pathlines, but, instead of showing the lines, I would like to do an animation of seed particles flowing through the flow field. Is this possible? Thanks! and wish everyone here a Happy New Year! Pei ___ ParaView mailing list ParaView@paraview.org http://www.paraview.org/mailman/listinfo/paraview -- David E DeMarle Kitware, Inc. RD Engineer 28 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-371-3971 x109 ___ 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
Re: [Paraview] particle tracking
That's a really cool solution. Bravo Jean.
-Ken
On 2/12/09 6:58 AM, Jean Favre jfa...@cscs.ch wrote:
Berk Geveci wrote:
To animate particles in a
steady-state flow field, I'd think that you would generate streamlines
and then somehow animate particles along those.
this is exactly the technique I use. Generate streamlines. Then
iso-contour the streamline object with the scalar field
IntegrationTime. Use a single threshold. Then animate the threshold
value. Use Mode=Sequence, get a ramp between minimum time and maximun time.
Use Glyphs (small spheres or arrows) attached to the iso-valued contours
and they will animate their position along the streamlines.
Jean
Swiss national Supercomputing Center
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Re: [Paraview] particle tracking
This conversation has basically become academic, but it would also be pretty
easy to create a filter that reported a bunch of time steps and just passed the
same data every time. The particle tracer would thing it was a time varying
data even though it was not.
Jean's solution is still easier (and more clever), though.
-Ken
On 2/12/09 7:00 AM, Berk Geveci berk.gev...@kitware.com wrote:
Interesting. I guess the biggest challenge of doing this in our
pipeline would be finding the time range. Ideally, the integration
should continue until all particles leave the domain or get stuck in a
stagnant region. That would require integrating them first and then
looking at the largest integration time.
While I was writing this, Jean's response showed up. It is pretty
ingenious :-) This is why I love ParaView. It allows you to do things
in ways developers did not foresee.
-berk
On Thu, Feb 12, 2009 at 8:42 AM, John Biddiscombe biddi...@cscs.ch wrote:
Berk
Oops. I didn't notice that it was a steady state flow field. The
TemporalStremTRacer expects unsteady flows, however it would be quite simple
to modify it to use a single step. (I think easier than taking streamlines
and animating particles along them - though thinking about it, the
streamtracer code does have all that conversion of cell units to time which
would be useful).
One could subclass the temporaltreamtracer, suppress the time requests and
interpolate over a single step, then output time dependent data where the
particles animate along the path (- how many steps would one want?) -
clicking the play button would just advect them along.
(Just thinking out loud).
JB
I don't think this answers Pei's question. To my knowledge the
temporal stream tracer (i.e. particle tracker) works only for
time-dependent data. Am I wrong? To animate particles in a
steady-state flow field, I'd think that you would generate streamlines
and then somehow animate particles along those. I can't think of
anything that would do this out-of-box but writing a filter that does
this would be pretty easy. Is this something more than a few users
would want?
-berk
On Thu, Feb 12, 2009 at 12:22 AM, David E DeMarle
dave.dema...@kitware.com wrote:
Hi Pei-Ying,
You may want to try ParaView Meshless
(https://twiki.cscs.ch/twiki/bin/view/ParaViewMeshless). It is a
version of ParaView with the cutting edge of John Biddiscombe's
particle tracking work in it. Some of those features will be/have been
integrated into the main paraview code, but I can not vouch for when
that will happen.
cheers,
Dave DeMarle
2008/12/25 Pei-Ying Hsieh phsieh2...@yahoo.com:
Dear PVers:
I have a steady state flow field. I am wondering if PV can do particle
tracking animation.
what I am looking for is similar to pathlines, but, instead of showing the
lines, I would like to do an animation of seed particles flowing through
the flow field. Is this possible?
Thanks! and wish everyone here a Happy New Year!
Pei
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Phone: 518-371-3971 x109
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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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*** Sandia National Laboratories
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*** web: http://www.cs.unm.edu/~kmorel
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Re: [Paraview] particle tracking
Hi Pei-Ying, You may want to try ParaView Meshless (https://twiki.cscs.ch/twiki/bin/view/ParaViewMeshless). It is a version of ParaView with the cutting edge of John Biddiscombe's particle tracking work in it. Some of those features will be/have been integrated into the main paraview code, but I can not vouch for when that will happen. cheers, Dave DeMarle 2008/12/25 Pei-Ying Hsieh phsieh2...@yahoo.com: Dear PVers: I have a steady state flow field. I am wondering if PV can do particle tracking animation. what I am looking for is similar to pathlines, but, instead of showing the lines, I would like to do an animation of seed particles flowing through the flow field. Is this possible? Thanks! and wish everyone here a Happy New Year! Pei ___ ParaView mailing list ParaView@paraview.org http://www.paraview.org/mailman/listinfo/paraview -- David E DeMarle Kitware, Inc. RD Engineer 28 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-371-3971 x109 ___ 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
