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 <[email protected]> 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 <[email protected]>: > > 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 <[email protected]> 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 <[email protected]> a > >> écrit : > >>> > >>> Temporal DataSet! Filters shouldn't be producing temporal dataset > >>> explicitly. Why do you need it? > >>> > >>> Utkarsh > >>> > >>> 2010/4/23 Aurélien Marsan <[email protected]>: > >>> > thanks ! > >>> > And so, could you add "Temporal Data Set" to this commit ? > >>> > Le 23 avril 2010 16:28, Utkarsh Ayachit <[email protected]> > 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 <[email protected]>: > >>> >> > 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 <[email protected]> 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 <[email protected]> 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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