[Paraview] Writing Images at certian time Steps using pvpython

[Burlen Loring]

if you haven't yet it worth while to print the time values reported by 
the reader. make sure it's not changing them on you. after that try to 
get a stack trace showing where the crash occurs.

On 08/22/2013 02:16 AM, Hedieh Ebrahimi wrote:
> Hi Burlen,
>
> Thanks for your reply. Actually when I mentioned final time step at  
> 10000 to get the image; by 10000 I actually was referring to the the 
> time. ( The time step related to this time (10000) is time step 40)
>
> I see what time is relating to what time step by using the 
> "AnnotateTimeFilter" and seeing the times interactively.
>
> Considering that I know the correct time, still pvpython crashes when 
> I try to get the image at a different time by changing the following 
> to time=10000 or any other time that exist in my simulation result.
>
> RenderView1.ViewTime = 10000.0
> RenderView1.CacheKey = 10000.0
> RenderView1.UseCache = 0
> AnimationScene1 = GetAnimationScene()
> AnimationScene1.AnimationTime = 10000.0
> WriteImage('myImage.jpg')
>
> Render()
>
> Any ideas on what I could be doing wrong and how to get the image at a 
> different time using pvpython ?
>
> I´d appreciate any help
> Thanks
>
>
> On 21 August 2013 18:27, Burlen Loring <bloring at lbl.gov 
> <mailto:bloring at lbl.gov>> wrote:
>
>     time is not always the same as time-step. Here's an example of how
>     you could query the reader for time values and then use them
>
>     ... nSteps = 0
>     steps = reader.TimestepValues
>
>     try:
>     nSteps = len(steps)
>
>     except:
>     nSteps = 1
>
>     steps = [steps] ...
>
>     anim = GetAnimationScene()
>     anim.PlayMode = 'Snap To TimeSteps'
>
>     anim.AnimationTime = steps[step]
>
>     view = GetRenderView()
>     view.ViewTime = steps[step] ... Render()
>
>
>
>     On 08/21/2013 03:04 AM, Hedieh Ebrahimi wrote:
>>     Hello,
>>
>>     My Data is of type h5 that I open using PFlotran HDF5 reader in
>>     ParaView  which are result of PFlotran simulation.
>>
>>     What I am trying to do is to write an image at a certain time
>>     step and then finally write a batch job that writes an image for
>>     each time step of the simulation result.
>>
>>     If I try to interactively go to a certain time step and then save
>>     an image, everything works fine.
>>
>>     The problem is I have 40 time steps and I want to do the same
>>     procedure often. So I saved my state file as a python script and
>>     then set these few lines at the end of script just before Render().
>>
>>     RenderView1.ViewTime = 0.0
>>     RenderView1.CacheKey = 0.0
>>     RenderView1.UseCache = 0
>>     AnimationScene1 = GetAnimationScene()
>>     AnimationScene1.AnimationTime = 0.0
>>     WriteImage('myImage.jpg')
>>
>>     Render()
>>
>>
>>     My timeSeries start at 0 and the python script works just fine for 0.
>>
>>     If I change the following lines to 10000 (my final time step) or
>>     any other time step, then pvpython crashes, that is the following
>>     change to the script makes the pvpython crash:
>>
>>     RenderView1.ViewTime = 10000.0
>>     RenderView1.CacheKey = 10000.0
>>     RenderView1.UseCache = 0
>>     AnimationScene1 = GetAnimationScene()
>>     AnimationScene1.AnimationTime = 10000.0
>>     WriteImage('myImage.jpg')
>>
>>     Render()
>>
>>     I used the trace to see what values I need to change to save an
>>     screen shot for any time step and I ended up with ViewTime and
>>     AnimationTime.
>>
>>     I have attached my script with this email. I would be grateful if
>>     you could please tell me if I need to change more in my script or
>>     add any additional lines to be able to get an screenshot of any
>>     timestep rather than 0.
>>
>>     Thanks in Advance.
>>
>>     Hedie
>>
>>
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>

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