[Paraview] pvpython WriteImage output corrupted

[Masquelet, Matthieu (GE Global Research)]

That does not seem to help. On the other hand, I've personally had success by adding a pause (time.sleep(0.5)) in my loop after each Delete(view). Does that help you pinpoint the issue? Note that I use on-screen rendering regardless as I cannot build paraview with OpenMesa on my system at this point.

Thanks in advance,

Matthieu

-----Original Message-----
From: Utkarsh Ayachit [mailto:utkarsh.ayachit at kitware.com] 
Sent: Friday, April 12, 2013 6:38 PM
To: Masquelet, Matthieu (GE Global Research)
Cc: Taylor, Erin M.; ParaView
Subject: Re: [Paraview] pvpython WriteImage output corrupted

I wonder if has something to do with the offscreen rendering. Try the following before Writeimage():

view.UseOffscreenRenderingForScreenshots = 0

Does that help?

Utkarsh


On Thu, Apr 11, 2013 at 2:37 PM, Masquelet, Matthieu (GE Global
Research) <masquelet at ge.com> wrote:
> I have experienced similar issues to a lesser level. Say if I'm looping over 20 files to generate snapshots for a movie, sometimes, 1 or 2 of these will be corrupted in a fashion similar to what is reported here. Also using 3.98.1 on Linux 64-bit, writing png files.
>
> Hope this helps,
>
> Matthieu
>
> -----Original Message-----
> From: paraview-bounces at paraview.org [mailto:paraview-bounces at paraview.org] On Behalf Of Taylor, Erin M.
> Sent: Thursday, April 11, 2013 11:11 AM
> To: Taylor, Erin M.; ParaView
> Subject: Re: [Paraview] pvpython WriteImage output corrupted
>
> I should also add that I can output images from the ParaView GUI in the linux machine with no problems.  It's just pvpython WriteImage output that is corrupted.
>
>
>
> On 4/11/13 11:08 AM, "Taylor, Erin M." <Erin.Taylor at jhuapl.edu> wrote:
>
>>Hi all,
>>
>>I have a pvpython script that I've been developing and running 
>>successfully on Mac OSX 10.6.8.  It renders a csv data set as points, then
>>saves an image to file.    It basically boils down to this:
>>
>>cr = CSVReader()
>>cr.FileName = filename
>>cr.UpdatePipeline()
>>tp = TableToPoints(cr)
>>tp.XColumn = 'x'
>>tp.YColumn = 'y'
>>tp.ZColumn = 'z'
>>tp.UpdatePipeline()
>>
>>Render()
>>view = GetRenderView()
>>WriteImage(image_path, view, Magnification = 2)
>>
>>
>>This works on the mac using pvpython.  However when I try to run the 
>>same script on a 64 bit linux machine (same version of paraview, 
>>3.98.1), the image that is output from WriteImage is corrupted.  By 
>>that I mean the image is a mess of black and white noise.  Sometimes 
>>the images have a portion of the script output rendered correctly in a 
>>tile of the image.  I should note that the image is rendered properly 
>>in the view window on this linux machine, it is just the saved output 
>>that is corrupted.  I have tried .png and .jpg image output with the same result.
>>
>>I appreciate any ideas anyone might have on the cause of this!
>>
>>Many thanks,
>>
>>Erin
>>
>>
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