... I answer myself : I have to use the req_timestep variable, and do something like
> ModulePerso.ReadMultiBlockFromV3D(*'filename%s'%(req_timestep)*) If that could help other people, there is on the internet a presentation that explains quite well how time is managed in Paraview, especially slide 32. http://www.itk.org/Wiki/images/2/20/IEEE08_Time-In-ParaView.ppt Le 26 avril 2010 10:39, Aurélien Marsan <aur.mar...@gmail.com> a écrit : > Thank for this example. > > But I'm trying to apply this to my case, and have one question again ..... > :-| > > # TODO: Generate the data as you want. > > ---> That should be the DataSet at one timestep ? > How does the programmable source handle the change of the filename to read > ? > Should I use a command sort of "executive.GetActiveTimeStep()" when I > define the filename to read ? > > Le 23 avril 2010 20:48, Utkarsh Ayachit <utkarsh.ayac...@kitware.com> a > écrit : > >> I've added an example to the Wiki showing how to produce timesteps >> from programmable source. >> >> http://www.paraview.org/Wiki/Here_are_some_more_examples_of_simple_ParaView_3_python_filters.#Producing_Data_with_Timesteps_.28Source.29 >> >> There's one caveat currently. The GUI does not realize the timesteps >> being produced, so you will have to manually adjust the time ranges >> for the animation using the Animation View. >> >> Utkarsh >> >> 2010/4/23 Aurélien Marsan <aur.mar...@gmail.com>: >> > Yet I understand why it's not possible to work with TemporalDataSet in >> > Paraview. >> > The output of the PVDReader is a MultiBlockDataSet, and the PVDReader >> > redirect the reader based on the time value. >> > >> > ... Is it possible to create a programmable source that would be aware >> of >> > the timestep ? >> > Or do I have to abandon python and write a reader in the C++ source ? >> > >> > Le 23 avril 2010 17:15, Aurélien Marsan <aur.mar...@gmail.com> a écrit >> : >> >> >> >> ah.... >> >> >> >> So : I use file in format v3d. >> >> For a mesh that contains two blocks, they would be called called >> >> block1_timestep1.v3d, block2_timestep1.v3d, block1_timestep2.v3d, >> >> block2_timestep2.v3d, etc... >> >> >> >> Actually, I open these v3d_files with a python tool that I have >> >> writen, translate them as vtk.vtkStructuredGrid, and write several >> files on >> >> the disk as TimeStep1.vtm, TimeStep2.vtm and Simulation.pvd >> >> But this takes a lot a disk space, and reading/writing takes a lot of >> >> time. >> >> >> >> So I would like to open the v3d file directly in paraview. >> >> That's why I though to use a Programmable Source in order to read all >> v3d >> >> files and create a "Temporal Data Set". >> >> >> >> Le 23 avril 2010 16:35, Utkarsh Ayachit <utkarsh.ayac...@kitware.com> >> a >> >> écrit : >> >>> >> >>> Temporal DataSet! Filters shouldn't be producing temporal dataset >> >>> explicitly. Why do you need it? >> >>> >> >>> Utkarsh >> >>> >> >>> 2010/4/23 Aurélien Marsan <aur.mar...@gmail.com>: >> >>> > thanks ! >> >>> > And so, could you add "Temporal Data Set" to this commit ? >> >>> > Le 23 avril 2010 16:28, Utkarsh Ayachit < >> utkarsh.ayac...@kitware.com> a >> >>> > écrit : >> >>> > >> >>> >> I've just committed a change to ParaView to allow setting output >> type >> >>> >> to be a multiblock dataset. >> >>> >> >> >>> >> Commit id: c7472789ba86210e190f398a90eebc081a66d40c >> >>> >> >> >>> >> Utkarsh >> >>> >> >> >>> >> 2010/4/23 Aurélien Marsan <aur.mar...@gmail.com>: >> >>> >> > I found a solution to do what I wanted to do. Not really elegant, >> >>> >> > but it >> >>> >> > works. >> >>> >> > The best would be to encode the reader in the source code.... but >> I >> >>> >> > don't >> >>> >> > know how to do, and have no time for now. >> >>> >> > >> >>> >> > First, I use the tool Source -> Data Object Generator, and create >> a >> >>> >> > MultiBlockDataSet. >> >>> >> >> >> >>> >> >> MB{} >> >>> >> > >> >>> >> > >> >>> >> > Then, I use a Programmable Filter, and set the Output Data Type >> >>> >> > "Same as >> >>> >> > Input". >> >>> >> > So I can use this script. >> >>> >> > >> >>> >> >> >> >>> >> >> from Moduleperso import * >> >>> >> >> m = MultiBlocFromV3D(........) # This is a personnal >> reader >> >>> >> >> in >> >>> >> >> python, that returns a vtkMultiBlockDataSet >> >>> >> >> self.GetOutputDataObject(0).DeepCopy(m) >> >>> >> > >> >>> >> > >> >>> >> > Hope this will help some people who don't want to go in source >> >>> >> > code... >> >>> >> > >> >>> >> > Le 23 avril 2010 14:07, Aurélien Marsan <aur.mar...@gmail.com> a >> >>> >> > écrit : >> >>> >> >> >> >>> >> >> Maybe I have found a way to avoid the Programmable Source... >> >>> >> >> >> >>> >> >> But Is it possible to export an object created in the python >> shell >> >>> >> >> directly into the pipeline of the paraview interface ? >> >>> >> >> >> >>> >> >> Le 22 avril 2010 15:36, Aurélien Marsan <aur.mar...@gmail.com> >> a >> >>> >> >> écrit >> >>> >> >> : >> >>> >> >>> >> >>> >> >>> Hi, >> >>> >> >>> >> >>> >> >>> A new thing I don't know how to do with Paraview. >> >>> >> >>> I have written a personnal reader, that creates >> vtkStructuredGrid >> >>> >> >>> from >> >>> >> >>> files written in so called format "v3d". So I'm able to >> construct >> >>> >> >>> a >> >>> >> >>> MutliBlockDataSet, that is composed of all the Blocks I'm >> working >> >>> >> >>> with. >> >>> >> >>> >> >>> >> >>> I would like to use "Programmable Source", so we don't need to >> >>> >> >>> write >> >>> >> >>> the >> >>> >> >>> file on the disk before to open it with Paraview. >> >>> >> >>> Does "Programmable Source" work with MultiBlockDataSet ? I >> don't >> >>> >> >>> see >> >>> >> >>> this >> >>> >> >>> class in the Output Data Set Type that we can choose... >> >>> >> >>> >> >>> >> >>> And is it correct if I write in the Script of the Programmable >> >>> >> >>> Filter >> >>> >> >>> : >> >>> >> >>> >> >>> >> >>> from perso import * >> >>> >> >>> multiblock = MultiBlockDataSetFromV3D(.....) >> >>> >> >>> self.GetOutput().DeepCopy(multiblock) >> >>> >> >>> >> >>> >> >>> Thanks for help. >> >>> >> >>> >> >>> >> >>> A.MARSAN >> >>> >> > >> >>> >> > >> >>> >> > _______________________________________________ >> >>> >> > 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 >> >>> >> > >> >>> >> > >> >>> > >> >>> > >> >> >> > >> > >> > >
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