[Paraview] Saving png files of animation

[Eric E. Monson]

Hey Bryn,

In my 3.3 build (with VTK_USE_FFMPEG_ENCODER: OFF, OS X) after going  
to Save Animation, then entering the animation parameters info, the  
next dialog asking for the file name has a File Type combo box at the  
bottom which lets me pick PNG, JPEG or TIFF. This dumps a series of  
frames for the animation. I'm not sure whether the AVI option excludes  
the PNG frames, but at least I know that the individual frames as  
images is possible.

-Eric

------------------------------------------------------
Eric E Monson
Duke Visualization Technology Group


On May 28, 2008, at 5:51 AM, Bryn Lloyd wrote:

> Hi Berk, hi users
>
>
> In version 2 of pv, there was a way to write png files of an  
> animation. In version 3 this has been replaced by the save animation  
> (to avi) option.
>
> Unfortunately this crashes on my system (Debian Sarge). I sometimes  
> am even logged out after the crash and loose everything that was  
> open/unsaved.
>
> Is there another way in pv3 to save an animation, e.g. individual  
> frames as .png images or similar?
>
> If I had access to the render window in the programmable filter, I  
> could maybe use a vtkWindowToImageFilter and a vtkPNGWriter. But as  
> you recently explained these are not available. But it would be  
> nice... :)
>
>
> Thanks for any hints/help.
>
> Cheers
> Bryn
>
>
>
>
>
> Berk Geveci wrote:
>> Only a subset of VTK classes are accessible through ParaView's
>> programmable filter. These are mostly classes in Common and  
>> Filtering.
>> We have plans to change this. Having said that, you will never be  
>> able
>> to create rendering object from the programmable filter. It is for
>> filtering only. You have to use the python interface to the server
>> manager (through the Python shell under the Tools menu) to create
>> rendering objects. There is an introduction to this interface here:
>> http://paraview.org/Wiki/images/f/f9/Servermanager2.pdf
>> I am afraid this API is different than pure VTK API and more limited
>> because of the client/server support (i.e. you don't have direct
>> access to VTK objects, only to proxies). You'll probably end up
>> creating a vtkSMDataLabelRepresentationProxy in some way.
>> By the way, ParaView already supports labels but limits them to
>> selections. Once you select a set of cells/points, you go to the
>> selection inspector and turn on labels. The reason labels are limited
>> to selections is due to poor rendering performance when a large  
>> number
>> of labels are displayed. We have in the works a new labeling scheme
>> that changes the number of labels based on the zoom level to give
>> interactive performance.
>> -berk
>> On Mon, May 26, 2008 at 2:39 AM, Bryn Lloyd  
>> <blloyd at vision.ee.ethz.ch> wrote:
>>> Hi users
>>>
>>>
>>> I wanted to a vtkIdFilter and a vtkLabeledDataMapper in the python
>>> programmable filter (in order to visualize point ids in pv3.3).
>>>
>>> Unfortunately, neither of these classes were located by the  
>>> programmable
>>> filter. I get following error message:
>>>
>>> AttributeError: 'module' object has no attribute  
>>> vtkLabeledDataMapper'
>>>
>>>
>>>
>>> This simple python code fails:
>>>
>>> ------------
>>>
>>> from paraview import vtk
>>> ldm = vtk.vtkLabeledDataMapper()
>>>
>>> ------------
>>>
>>>
>>> Does anybody know what I am doing wrong, or why this does not  
>>> work? I
>>> checked if the vtk filters are in the paraview source directory:  
>>> They are!
>>>
>>>
>>> Thanks for any hints/help
>>>
>>>
>>> Cheers, Bryn
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> --
>>> -------------------------------------------------
>>> Bryn Lloyd
>>> Computer Vision Laboratory
>>> ETH Zürich, Sternwartstrasse 7
>>> CH - 8092 Zürich, Switzerland
>>> Tel: +41 44 63 27690
>>> Fax: +41 44 63 21199
>>> -------------------------------------------------
>>>
>>> _______________________________________________
>>> ParaView mailing list
>>> ParaView at paraview.org
>>> http://www.paraview.org/mailman/listinfo/paraview
>>>
>
>
> -- 
> -------------------------------------------------
> Bryn Lloyd
> Computer Vision Laboratory
> ETH Zürich, Sternwartstrasse 7
> CH - 8092 Zürich, Switzerland
> Tel: +41 44 63 27690
> Fax: +41 44 63 21199
> -------------------------------------------------
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> ParaView mailing list
> ParaView at paraview.org
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