[Paraview] Saving png files of animation

Wed May 28 08:42:09 EDT 2008

Hi Ken,

Thanks. The saving to png works fine.

The offscreen rendering also worked - without crashing my system!

-Bryn

Moreland, Kenneth wrote:
> The ability to save png/jpeg/tiff animations is available on all the ParaView 3.2 builds as well.  You just have to choose a different filter in the file type combo box of the file chooser.
> 
> The crash is probably related to the offscreen rendering employed while writing animations.  The offscreen rendering is used to prevent the animation from capturing any windows on your desktop that might overlap your ParaView window.  Unfortunately, we've had trouble with some video drivers supporting the offscreen rendering extensions incorrectly.  If you are a little bit daring, you could try using the 3.3.0 snapshot available on the web, which has an option to turn off offscreen rendering for animations.  You could also try updating your video driver.
> 
> -Ken
> 
>> -----Original Message-----
>> From: paraview-bounces at paraview.org [mailto:paraview-bounces at paraview.org]
>> On Behalf Of Eric E. Monson
>> Sent: Wednesday, May 28, 2008 5:03 AM
>> To: blloyd at vision.ee.ethz.ch
>> Cc: paraview-users
>> Subject: Re: [Paraview] Saving png files of animation
>>
>> 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 In version 3 this has been replaced by the save animation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
>>> -------------------------------------------------
>>> _______________________________________________
>>> ParaView mailing list
>>> ParaView at paraview.org
>>> http://www.paraview.org/mailman/listinfo/paraview
>> _______________________________________________
>> 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
-------------------------------------------------