[Paraview] RE : RE : RE : using with python - VTK multifiles animate

Mon Jul 20 14:40:58 EDT 2009

Jona,

I just tried your script. I am not sure why you are not using
AnimateReader()? I just used it and it saved 4 frames as I'd expect.
Here's my script. take a look at
ParaView/Utiltiies/VTKPythonWrapping/simple.py to see how
AnimateReader is implemented if you want to do it yourself.

from paraview.simple import *

reader_base = servermanager.sources.PVDReader()
reader_base.FileName = "/tmp/coupe.pvd"
reader_base.UpdatePipeline()

Show(reader_base)
Render()

reader_base.TimestepValues
#>>> [0.0, 5.0, 6.0, 10.0]

AnnotateTimeFilter()
Show()

Render()

# Render the animation AnimateReader(reader, view, filename=None)
AnimateReader(reader_base, filename="/tmp/foo.png")

On Tue, Jul 7, 2009 at 12:56 PM, BOUSSOIR Jonathan
167706<Jonathan.BOUSSOIR at cea.fr> wrote:
> Hi Utkarsh,
>
> Sorry, I forged to keep the paraview mailing list.
>
> Thank you for your answer.
> I had tried to make a file PVD and I had changed VTK file to VTU.
> I launched PVD file with xml-base (I think)
>
> I can see with TimestepValues are a same that I wrote in PVD file.
>
> reader_base.TimestepValues
> #>>> [0.0, 5.0, 6.0, 10.0]
>
> But when I create a movie, the timesteps are bad.
> I don't understand why? Perhaps I have a bug in my script?
> I have attached my script and PVD file in my mail.
>
> Thanks in advance for your kind help.
>
> Regards,
> Jona
>
> -------- Message d'origine--------
> De: Utkarsh Ayachit [mailto:utkarsh.ayachit at kitware.com]
> Date: mar. 07/07/2009 17:54
> À: BOUSSOIR Jonathan 167706
> Cc: ParaView
> Objet : Re: RE : RE : [Paraview] using with python - VTK multifiles animate
>
> Jona,
>
> Please keep the discussion to the mailing list so that others can
> participate as well.
>
> TimestepValues is a read-only property. With the legacy reader it's
> not possible to change the time values for legacy vtk files read as a
> file series. You can create a pvd file which is an xml file describing
> the time values for each file, however pvd doesn't support legacy VTK
> files, you need to write the new xml-based vtk files.
>
> Utkarsh
>
> On Tue, Jul 7, 2009 at 10:49 AM, BOUSSOIR Jonathan
> 167706<Jonathan.BOUSSOIR at cea.fr> wrote:
>> Hi Utkarsh,
>>
>> Thank you very much.
>>
>> With AnimateReader(reader, "coupe.avi"), I can save a movie.
>> Now, I would like to change the time sequence by real time.
>>
>> I had tried to change PlayMode = 1 (I suppose that 0 is for 'Sequence', 1 is for 'Real Time' and 2 is for 'Snap to TimeSteps')
>> scene.PlayMode = 1
>> and
>>
>> reader.TimestepValues.SetData((0,7,9,10))
>> or
>> reader.TimestepValues = (0,7,9,10)
>>
>> When I execute TimestepValues(), I have well [0.0, 7.0, 9.0, 10.0]
>> But when I excute my script and I see the movie, the VTK file sequence aren't be equivalent with the sequence I had fixed.
>> I don't understand why? Perhaps I have a bug in my script?
>>
>> I had seen that when I execute UpdatePipelineInformation() I have once again [0.0, 1.0, 2.0, 3.0]
>>
>> reader.TimestepValues = (0,7,9,10)
>> reader.UpdatePipelineInformation()
>> reader.TimestepValues
>>>>> [0.0, 1.0, 2.0, 3.0]
>>
>>
>> Can you help me how do I change the time value in the sources.LegacyVTKReader()
>>
>> Thanks in advance for your kind help.
>>
>> Regards,
>> Jona
>>
>> My script:
>>
>> from paraview.simple import *
>> Connect('localhost')
>>
>> files = ["/home/myrrha/test4/coupe01.vtk",
>> "/home/myrrha/test4/coupe02.vtk",
>> "/home/myrrha/test4/coupe03.vtk",
>> "/home/myrrha/test4/coupe04.vtk"]
>>
>> reader = servermanager.sources.LegacyVTKReader(FileNames=files)
>>
>> reader.TimestepValues.SetData((0,5,9,10))
>>
>> scene = servermanager.animation.AnimationScene()
>> scene.ViewModules = [GetRenderView()]
>> #reader.UpdatePipelineInformation()
>>
>> scene.StartTime = reader.TimestepValues.GetData()[0]
>> scene.EndTime = reader.TimestepValues.GetData()[-1]
>> #scene.NumberOfFrames = 10
>>
>> scene.PlayMode = 1
>>
>> cue = servermanager.animation.TimeAnimationCue()
>> cue.AnimatedProxy = GetRenderView()
>> cue.AnimatedPropertyName = "ViewTime"
>> scene.Cues = [cue]
>>
>> writer = servermanager.vtkSMAnimationSceneImageWriter()
>> writer.SetFileName('az3.avi')
>> writer.SetFrameRate(1)
>> writer.SetAnimationScene(scene.SMProxy)
>> writer.Save()
>>
>>
>>
>>
>> -------- Message d'origine--------
>> De: Utkarsh Ayachit [mailto:utkarsh.ayachit at kitware.com]
>> Date: lun. 06/07/2009 14:39
>> À: BOUSSOIR Jonathan 167706
>> Cc: ParaView
>> Objet : Re: RE : [Paraview] using with python - VTK multifiles animate
>>
>> Oops, I should have looked at your original script more closely.
>> LegacyVTKReader can read multiple files on it's own, you don't have to
>> create separate readers for each file.
>> Try the following:
>>
>> from paraview.simple import *
>> Connect('localhost')
>>
>> files = ["/home/myrrha/test4/coupe01.vtk",
>> "/home/myrrha/test4/coupe02.vtk",
>> "/home/myrrha/test4/coupe03.vtk",
>> "/home/myrrha/test4/coupe04.vtk"]
>>
>> reader = servermanager.sources.LegacyVTKReader(FileNames=files)
>>
>> Show(reader)
>> Render()
>>
>> AnimateReader(reader)
>>
>> Utkarsh
>>
>> On Mon, Jul 6, 2009 at 4:35 AM, BOUSSOIR Jonathan
>> 167706<Jonathan.BOUSSOIR at cea.fr> wrote:
>>> Hi Utkarsh,
>>>
>>> Thank you for your answer.
>>> I had tried with AnimateReader but it didn't animate multifile.
>>> I don't seen how to do.
>>> Thanks in advance for your kind help.
>>>
>>> Regards,
>>> Jona
>>>
>>> my script:
>>>
>>> from paraview.simple import *
>>> Connect('localhost')
>>>
>>> files = ["/home/myrrha/test4/coupe01.vtk",
>>> "/home/myrrha/test4/coupe02.vtk",
>>> "/home/myrrha/test4/coupe03.vtk",
>>> "/home/myrrha/test4/coupe04.vtk"]
>>>
>>> readers = []
>>> for f in files:
>>>    reader = servermanager.sources.LegacyVTKReader(FileNames=f)
>>>    readers.append(reader)
>>>
>>> Show(readers[0])
>>> Render()
>>>
>>> AnimateReader(readers)
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> -------- Message d'origine--------
>>> De: Utkarsh Ayachit [mailto:utkarsh.ayachit at kitware.com]
>>> Date: ven. 03/07/2009 15:02
>>> À: BOUSSOIR Jonathan 167706
>>> Cc: paraview at paraview.org
>>> Objet : Re: [Paraview] using with python - VTK multifiles animate
>>>
>>> Doesn't the following work?
>>>
>>>> simple.AnimateReader(yourreader)
>>>
>>> If it does take a look at the implementation in
>>> ParaView3Source/Utilities/VTKPythonWrapping/paraview/simple.py
>>>
>>> Utkarsh
>>>
>>>
>>> On Thu, Jul 2, 2009 at 6:01 AM, BOUSSOIR Jonathan
>>> 167706<Jonathan.BOUSSOIR at cea.fr> wrote:
>>>>
>>>> Hi all,
>>>>
>>>> I am work with Paraview (3.7) and with linux.
>>>> I had done on Paraview to load VTK multifigure and clic a play button to see animation.
>>>> I would like to do a same on Pythyn with paraview and I don't know how to do the animation.
>>>>
>>>>
>>>> from paraview.simple import *
>>>> Connect('localhost')
>>>>
>>>> f = ["coupe01.vtk", "coupe02.vtk", "coupe03.vtk", "coupe04.vtk"]
>>>> readers = []
>>>> for f in files:
>>>>    reader = servermanager.sources.LegacyVTKReader(FileNames=f)
>>>>    readers.append(reader)
>>>>
>>>> Show(readers[0])
>>>> Render()
>>>>
>>>> # Create an animation scene
>>>> scene = servermanager.animation.AnimationScene()
>>>> # Add one view
>>>> scene.ViewModules = [GetActiveView()]
>>>>
>>>> # Create a cue to animate the StartTheta property
>>>> cue = servermanager.animation.KeyFrameAnimationCue()
>>>> cue.AnimatedProxy = GetActiveSource()
>>>>
>>>> # Add it to the scene's cues
>>>> scene.Cues = [cue]
>>>> ....
>>>>
>>>> After, I don't know how I would done ?
>>>> Do you have a small pyphon script to explain or if somebody can explained me how I can do.
>>>>
>>>> Thanks in advance for your kind help.
>>>>
>>>> Regards,
>>>> Jona
>>>>
>>>>
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>>>
>>>
>>
>>
>>
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