[Paraview] ParticleTracer filter makes Paraview crash on 'play'

[Andy Bauer]

Hi,

My guess is that it has to do with OpenFOAM's way of saving out extra
fields for the initial time step. Several temporal filters assume that the
arrays are ordered the same for different time steps but the OpenFOAM
reader doesn't follow this convention.

Can you share a data set that reproduces the issue?

Andy

On Mon, Nov 23, 2015 at 8:23 AM, Per Adamsen <padamsen at grundfos.com> wrote:

> Hi,
>
>
>
> I have been trying to visualize flow using the particle tracers as
> described at
> http://openfoamwiki.net/index.php/HowTo_use_particle_tracer_in_paraFoam.
>
>
>
> It works when using it on the cavity tutorial but when I try to transfer
> the setup to one of my own 3D OpenFOAM cases of a pump volute with e.g. 20
> timesteps and 900,000 cells Paraview crashes with a segmentation fault when
> I hit the ‘Play’ button to step through the individual timesteps.
>
>
>
> The pipeline setup is exactly as described in the HowTo (linked above) and
> I have tried both with and without the Temporal Interpolator and on Linux
> and Windows platform – all with the same crash result.
>
>
>
> I have tried the following 64-bit version:
>
> 3.98.1 on Win7
>
> 4.4.0 on Win7
>
> 4.2.0 on Linux HPC cluster
>
>
>
> At first I thought the reason for the crash was due to the use of
> interfaces in the model but I have tried a model without interfaces at all
> and the result is the same.
>
>
>
> Are there any restriction to the data which can be used?
>
>
>
> The following is the trace right up to pressing ‘Play’:
>
> #### import the simple module from the paraview
>
> from paraview.simple import *
>
> #### disable automatic camera reset on 'Show'
>
> paraview.simple._DisableFirstRenderCameraReset()
>
>
>
> # get active source.
>
> q97_volutefoam = GetActiveSource()
>
>
>
> # Properties modified on q97_volutefoam
>
> q97_volutefoam.CaseType = 'Decomposed Case'
>
>
>
> # get active view
>
> renderView1 = GetActiveViewOrCreate('RenderView')
>
> # uncomment following to set a specific view size
>
> # renderView1.ViewSize = [1025, 773]
>
>
>
> # get color transfer function/color map for 'p'
>
> pLUT = GetColorTransferFunction('p')
>
>
>
> # show data in view
>
> q97_volutefoamDisplay = Show(q97_volutefoam, renderView1)
>
> # trace defaults for the display properties.
>
> q97_volutefoamDisplay.ColorArrayName = ['POINTS', 'p']
>
> q97_volutefoamDisplay.LookupTable = pLUT
>
> q97_volutefoamDisplay.ScalarOpacityUnitDistance = 0.01089979797382614
>
> q97_volutefoamDisplay.SelectInputVectors = ['POINTS', 'U']
>
> q97_volutefoamDisplay.WriteLog = ''
>
>
>
> # reset view to fit data
>
> renderView1.ResetCamera()
>
>
>
> # show color bar/color legend
>
> q97_volutefoamDisplay.SetScalarBarVisibility(renderView1, True)
>
>
>
> # get animation scene
>
> animationScene1 = GetAnimationScene()
>
>
>
> # update animation scene based on data timesteps
>
> animationScene1.UpdateAnimationUsingDataTimeSteps()
>
>
>
> # get opacity transfer function/opacity map for 'p'
>
> pPWF = GetOpacityTransferFunction('p')
>
>
>
> # create a new 'Plane'
>
> plane1 = Plane()
>
>
>
> # Properties modified on q97_volutefoam
>
> q97_volutefoam.CellArrays = ['U', 'k', 'nut', 'omega', 'p', 'gradP',
> 'myPtot', 'myYPlus', 'uPlus', 'y', 'yPlus']
>
>
>
> # Properties modified on plane1
>
> plane1.XResolution = 100
>
> plane1.YResolution = 100
>
>
>
> # show data in view
>
> plane1Display = Show(plane1, renderView1)
>
> # trace defaults for the display properties.
>
> plane1Display.ColorArrayName = [None, '']
>
> plane1Display.SelectInputVectors = ['POINTS', 'Normals']
>
> plane1Display.WriteLog = ''
>
>
>
> # create a new 'ParticleTracer'
>
> particleTracer1 = ParticleTracer(Input=q97_volutefoam,
>
>     SeedSource=plane1)
>
> particleTracer1.SelectInputVectors = ['POINTS', 'U']
>
>
>
> # Properties modified on particleTracer1
>
> particleTracer1.StaticSeeds = 1
>
> particleTracer1.StaticMesh = 1
>
>
>
> # show data in view
>
> particleTracer1Display = Show(particleTracer1, renderView1)
>
> # trace defaults for the display properties.
>
> particleTracer1Display.ColorArrayName = ['POINTS', 'p']
>
> particleTracer1Display.LookupTable = pLUT
>
> particleTracer1Display.SelectInputVectors = ['POINTS', 'U']
>
> particleTracer1Display.WriteLog = ''
>
>
>
> # hide data in view
>
> Hide(q97_volutefoam, renderView1)
>
>
>
> # hide data in view
>
> Hide(plane1, renderView1)
>
>
>
> # show color bar/color legend
>
> particleTracer1Display.SetScalarBarVisibility(renderView1, True)
>
>
>
> Regards,
>
> Per Adamsen
>
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