[Paraview] In Paraview 3.12 setting opacity below 1 triggers segmentation fault when saving animation

[Yarek]

Hi,

First of all, this concerns ParaFOAM edition and I am not sure if this 
is the right place to seek support. I am trying to use saved python 
state and code samples from paraview wiki to create a script that would 
read results, create two filters, set display properties and generate 
animation. The script works fine with "DataRepresentation1.Opacity" set 
to "1" (line 110 - the script attached below), but throws segmentation 
fault when I decrease it. Unfortunately, I need it at 0.1 to show the 
outline of the container during filling, so this is a serious problem. I 
do not get this error, regardless of opacity setting, when no images are 
saved (i.e. last line: "AnimateReader(results_OpenFOAM)").

This error should be easy to reproduce using the results of the "Dam 
Break" OpenFOAM tutorial. I did this by entering the tutorial directory, 
creating script.py and starting the post-processing with command 
"paraFoam --script=script.py" (with opacity set to less than 1).

As I am a beginner, any help would be appreciated.

Best regards,
Yarek

P.S. I have one question regarding the scripting itself: could someone 
explain to me how to set the image resolution and number of frames per 
time step for an animation which is defined like it is defined in my script?


The script:

Delete()

results_OpenFOAM = PV3FoamReader( guiName="results.OpenFOAM", 
UseVTKPolyhedron=0, LagrangianFields=[], VolumeFields=['alpha1'], 
UiRefresh=0, FileName='*.OpenFOAM', UpdateGUI=0, PointFields=[], 
MeshParts=['internalMesh'] )

RenderView1 = GetActiveCamera()
RenderView1.LightSpecularColor = [1.0, 1.0, 1.0]
RenderView1.InteractionMode = '3D'
RenderView1.UseTexturedBackground = 0
RenderView1.UseLight = 1
RenderView1.CameraPosition = [0.599999999627471, 0.47538539953529835, 
3.3687869950278144]
RenderView1.FillLightKFRatio = 3.0
RenderView1.Background2 = [0.0, 0.0, 0.16470588235294117]
RenderView1.FillLightAzimuth = -10.0
RenderView1.LODResolution = 50.0
RenderView1.BackgroundTexture = []
RenderView1.HeadPose = [1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 
0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0]
RenderView1.KeyLightAzimuth = 10.0
RenderView1.StencilCapable = 1
RenderView1.LightIntensity = 1.0
RenderView1.CameraFocalPoint = [0.599999999627471, 0.47538539953529835, 0.0]
RenderView1.ImageReductionFactor = 2
RenderView1.CameraViewAngle = 30.0
RenderView1.CameraParallelScale = 0.8719062332068892
RenderView1.EyeAngle = 2.0
RenderView1.HeadLightKHRatio = 3.0
RenderView1.StereoRender = 0
RenderView1.KeyLightIntensity = 0.75
RenderView1.BackLightAzimuth = 110.0
RenderView1.OrientationAxesInteractivity = 0
RenderView1.UseInteractiveRenderingForSceenshots = 0
RenderView1.UseOffscreenRendering = 0
RenderView1.Background = [0.0, 0.0, 0.0]
RenderView1.UseOffscreenRenderingForScreenshots = 1
RenderView1.NonInteractiveRenderDelay = 2
RenderView1.CenterOfRotation = [0.599999999627471, 0.47538539953529835, 0.0]
RenderView1.CameraParallelProjection = 1
RenderView1.CompressorConfig = 'vtkSquirtCompressor 0 3'
RenderView1.HeadLightWarmth = 0.5
RenderView1.MaximumNumberOfPeels = 4
RenderView1.LightDiffuseColor = [1.0, 1.0, 1.0]
RenderView1.StereoType = 'Red-Blue'
RenderView1.DepthPeeling = 1
RenderView1.BackLightKBRatio = 3.5
RenderView1.StereoCapableWindow = 1
RenderView1.CameraViewUp = [0.0, 1.0, 0.0]
RenderView1.LightType = 'HeadLight'
RenderView1.LightAmbientColor = [1.0, 1.0, 1.0]
RenderView1.WandPose = [1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 
0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0]
RenderView1.RemoteRenderThreshold = 3.0
RenderView1.KeyLightElevation = 50.0
RenderView1.CenterAxesVisibility = 0
RenderView1.MaintainLuminance = 0
RenderView1.StillRenderImageReductionFactor = 1
RenderView1.BackLightWarmth = 0.5
RenderView1.FillLightElevation = -75.0
RenderView1.MultiSamples = 0
RenderView1.FillLightWarmth = 0.4
RenderView1.AlphaBitPlanes = 1
RenderView1.LightSwitch = 0
RenderView1.OrientationAxesVisibility = 0
RenderView1.CameraClippingRange = [2.8375991250775363, 4.045568799953232]
RenderView1.BackLightElevation = 0.0
RenderView1.ViewTime = 0.5
RenderView1.OrientationAxesOutlineColor = [1.0, 1.0, 1.0]
RenderView1.LODThreshold = 5.0
RenderView1.CollectGeometryThreshold = 100.0
RenderView1.UseGradientBackground = 0
RenderView1.KeyLightWarmth = 0.6
RenderView1.OrientationAxesLabelColor = [1.0, 1.0, 1.0]

AnnotateTimeFilter1 = AnnotateTimeFilter( guiName="AnnotateTimeFilter1", 
Shift=0.0, Scale=1.0, Format='%0.2f s' )

SetActiveSource(results_OpenFOAM)
IsoVolume1 = IsoVolume( guiName="IsoVolume1", ThresholdRange=[0.1, 1.1], 
InputScalars=['POINTS', 'alpha1'] )

SetActiveSource(results_OpenFOAM)
DataRepresentation1 = Show()
DataRepresentation1.CubeAxesZAxisVisibility = 1
DataRepresentation1.SelectionPointLabelColor = [0.5, 0.5, 0.5]
DataRepresentation1.SelectionPointFieldDataArrayName = 'vtkOriginalPointIds'
DataRepresentation1.SuppressLOD = 0
DataRepresentation1.CubeAxesXGridLines = 0
DataRepresentation1.CubeAxesYAxisTickVisibility = 1
DataRepresentation1.Position = [0.0, 0.0, 0.0]
DataRepresentation1.BackfaceRepresentation = 'Follow Frontface'
DataRepresentation1.SelectionOpacity = 1.0
DataRepresentation1.SelectionPointLabelShadow = 0
DataRepresentation1.CubeAxesYGridLines = 0
DataRepresentation1.OrientationMode = 'Direction'
DataRepresentation1.Source.TipResolution = 6
DataRepresentation1.ScaleMode = 'No Data Scaling Off'
DataRepresentation1.Diffuse = 1.0
DataRepresentation1.SelectionUseOutline = 0
DataRepresentation1.SelectionPointLabelFormat = ''
DataRepresentation1.CubeAxesZTitle = 'Z-Axis'
DataRepresentation1.Specular = 0.1
DataRepresentation1.SelectionVisibility = 1
DataRepresentation1.InterpolateScalarsBeforeMapping = 1
DataRepresentation1.CubeAxesZAxisTickVisibility = 1
DataRepresentation1.Origin = [0.0, 0.0, 0.0]
DataRepresentation1.CubeAxesVisibility = 0
DataRepresentation1.Scale = [1.0, 1.0, 1.0]
DataRepresentation1.SelectionCellLabelJustification = 'Left'
DataRepresentation1.DiffuseColor = [0.0, 0.0, 1.0]
DataRepresentation1.SelectionCellLabelOpacity = 1.0
DataRepresentation1.CubeAxesInertia = 1
DataRepresentation1.Source = "Arrow"
DataRepresentation1.Source.Invert = 0
DataRepresentation1.Masking = 0
DataRepresentation1.Opacity = 0.1
DataRepresentation1.LineWidth = 1.0
DataRepresentation1.MeshVisibility = 0
DataRepresentation1.Visibility = 1
DataRepresentation1.SelectionCellLabelFontSize = 18
DataRepresentation1.CubeAxesCornerOffset = 0.0
DataRepresentation1.SelectionPointLabelJustification = 'Left'
DataRepresentation1.SelectionPointLabelVisibility = 0
DataRepresentation1.SelectOrientationVectors = ''
DataRepresentation1.CubeAxesTickLocation = 'Inside'
DataRepresentation1.BackfaceDiffuseColor = [1.0, 1.0, 1.0]
DataRepresentation1.CubeAxesYAxisVisibility = 1
DataRepresentation1.SelectionPointLabelFontFamily = 'Arial'
DataRepresentation1.Source.ShaftResolution = 6
DataRepresentation1.CubeAxesFlyMode = 'Closest Triad'
DataRepresentation1.SelectScaleArray = ''
DataRepresentation1.CubeAxesYTitle = 'Y-Axis'
DataRepresentation1.ColorAttributeType = 'POINT_DATA'
DataRepresentation1.SpecularPower = 100.0
DataRepresentation1.Texture = []
DataRepresentation1.SelectionCellLabelShadow = 0
DataRepresentation1.AmbientColor = [1.0, 1.0, 1.0]
DataRepresentation1.MapScalars = 1
DataRepresentation1.PointSize = 2.0
DataRepresentation1.Source.TipLength = 0.35
DataRepresentation1.SelectionCellLabelFormat = ''
DataRepresentation1.Scaling = 0
DataRepresentation1.StaticMode = 0
DataRepresentation1.SelectionCellLabelColor = [0.0, 1.0, 0.0]
DataRepresentation1.Source.TipRadius = 0.1
DataRepresentation1.EdgeColor = [0.0, 0.0, 0.5019607843137255]
DataRepresentation1.CubeAxesXAxisTickVisibility = 1
DataRepresentation1.SelectionCellLabelVisibility = 0
DataRepresentation1.NonlinearSubdivisionLevel = 1
DataRepresentation1.CubeAxesColor = [1.0, 1.0, 1.0]
DataRepresentation1.Representation = 'Surface'
DataRepresentation1.CustomBounds = [0.0, 1.0, 0.0, 1.0, 0.0, 1.0]
DataRepresentation1.CubeAxesXAxisMinorTickVisibility = 1
DataRepresentation1.Orientation = [0.0, 0.0, 0.0]
DataRepresentation1.CubeAxesXTitle = 'X-Axis'
DataRepresentation1.ScalarOpacityUnitDistance = 0.024426686315073155
DataRepresentation1.BackfaceOpacity = 1.0
DataRepresentation1.SelectionCellFieldDataArrayName = 'vtkOriginalCellIds'
DataRepresentation1.SelectionColor = [1.0, 0.0, 1.0]
DataRepresentation1.Ambient = 0.0
DataRepresentation1.SelectionPointLabelFontSize = 18
DataRepresentation1.ScaleFactor = 1.0
DataRepresentation1.BackfaceAmbientColor = [1.0, 1.0, 1.0]
DataRepresentation1.Source.ShaftRadius = 0.03
DataRepresentation1.ScalarOpacityFunction = []
DataRepresentation1.SelectMaskArray = ''
DataRepresentation1.SelectionLineWidth = 2.0
DataRepresentation1.CubeAxesZAxisMinorTickVisibility = 1
DataRepresentation1.CubeAxesXAxisVisibility = 1
DataRepresentation1.Interpolation = 'Gouraud'
DataRepresentation1.SelectMapper = 'Projected tetra'
DataRepresentation1.SelectionCellLabelFontFamily = 'Arial'
DataRepresentation1.SelectionCellLabelItalic = 0
DataRepresentation1.CubeAxesYAxisMinorTickVisibility = 1
DataRepresentation1.CubeAxesZGridLines = 0
DataRepresentation1.ExtractedBlockIndex = 0
DataRepresentation1.SelectionPointLabelOpacity = 1.0
DataRepresentation1.Pickable = 1
DataRepresentation1.CustomBoundsActive = [0, 0, 0]
DataRepresentation1.SelectionRepresentation = 'Wireframe'
DataRepresentation1.SelectionPointLabelBold = 0
DataRepresentation1.ColorArrayName = ''
DataRepresentation1.SelectionPointLabelItalic = 0
DataRepresentation1.AllowSpecularHighlightingWithScalarColoring = 0
DataRepresentation1.SpecularColor = [1.0, 1.0, 1.0]
DataRepresentation1.LookupTable = []
DataRepresentation1.SelectionPointSize = 5.0
DataRepresentation1.SelectionCellLabelBold = 0
DataRepresentation1.Orient = 0

SetActiveSource(AnnotateTimeFilter1)
DataRepresentation2 = Show()
DataRepresentation2.Interactivity = 1
DataRepresentation2.Opacity = 1.0
DataRepresentation2.Justification = 'Left'
DataRepresentation2.Bold = 0
DataRepresentation2.Resizable = 0
DataRepresentation2.Color = [1.0, 1.0, 1.0]
DataRepresentation2.WindowLocation = 'AnyLocation'
DataRepresentation2.TextScaleMode = 2
DataRepresentation2.Visibility = 1
DataRepresentation2.FontFamily = 'Arial'
DataRepresentation2.FontSize = 18
DataRepresentation2.Italic = 0
DataRepresentation2.Position = [0.05, 0.05]
DataRepresentation2.Shadow = 0
DataRepresentation2.Position2 = [0.1, 0.1]
DataRepresentation2.Orientation = 0.0

SetActiveSource(IsoVolume1)
DataRepresentation3 = Show()
DataRepresentation3.CubeAxesZAxisVisibility = 1
DataRepresentation3.SelectionPointLabelColor = [0.5, 0.5, 0.5]
DataRepresentation3.SelectionPointFieldDataArrayName = 'vtkOriginalPointIds'
DataRepresentation3.SuppressLOD = 0
DataRepresentation3.CubeAxesXGridLines = 0
DataRepresentation3.CubeAxesYAxisTickVisibility = 1
DataRepresentation3.Position = [0.0, 0.0, 0.0]
DataRepresentation3.BackfaceRepresentation = 'Follow Frontface'
DataRepresentation3.SelectionOpacity = 1.0
DataRepresentation3.SelectionPointLabelShadow = 0
DataRepresentation3.CubeAxesYGridLines = 0
DataRepresentation3.OrientationMode = 'Direction'
DataRepresentation3.Source.TipResolution = 6
DataRepresentation3.ScaleMode = 'No Data Scaling Off'
DataRepresentation3.Diffuse = 1.0
DataRepresentation3.SelectionUseOutline = 0
DataRepresentation3.SelectionPointLabelFormat = ''
DataRepresentation3.CubeAxesZTitle = 'Z-Axis'
DataRepresentation3.Specular = 0.1
DataRepresentation3.SelectionVisibility = 1
DataRepresentation3.InterpolateScalarsBeforeMapping = 1
DataRepresentation3.CubeAxesZAxisTickVisibility = 1
DataRepresentation3.Origin = [0.0, 0.0, 0.0]
DataRepresentation3.CubeAxesVisibility = 0
DataRepresentation3.Scale = [1.0, 1.0, 1.0]
DataRepresentation3.SelectionCellLabelJustification = 'Left'
DataRepresentation3.DiffuseColor = [1.0, 1.0, 1.0]
DataRepresentation3.SelectionCellLabelOpacity = 1.0
DataRepresentation3.CubeAxesInertia = 1
DataRepresentation3.Source = "Arrow"
DataRepresentation3.Source.Invert = 0
DataRepresentation3.Masking = 0
DataRepresentation3.Opacity = 1.0
DataRepresentation3.LineWidth = 1.0
DataRepresentation3.MeshVisibility = 0
DataRepresentation3.Visibility = 1
DataRepresentation3.SelectionCellLabelFontSize = 18
DataRepresentation3.CubeAxesCornerOffset = 0.0
DataRepresentation3.SelectionPointLabelJustification = 'Left'
DataRepresentation3.SelectionPointLabelVisibility = 0
DataRepresentation3.SelectOrientationVectors = ''
DataRepresentation3.CubeAxesTickLocation = 'Inside'
DataRepresentation3.BackfaceDiffuseColor = [1.0, 1.0, 1.0]
DataRepresentation3.CubeAxesYAxisVisibility = 1
DataRepresentation3.SelectionPointLabelFontFamily = 'Arial'
DataRepresentation3.Source.ShaftResolution = 6
DataRepresentation3.CubeAxesFlyMode = 'Closest Triad'
DataRepresentation3.SelectScaleArray = ''
DataRepresentation3.CubeAxesYTitle = 'Y-Axis'
DataRepresentation3.ColorAttributeType = 'POINT_DATA'
DataRepresentation3.SpecularPower = 100.0
DataRepresentation3.Texture = []
DataRepresentation3.SelectionCellLabelShadow = 0
DataRepresentation3.AmbientColor = [1.0, 1.0, 1.0]
DataRepresentation3.MapScalars = 1
DataRepresentation3.PointSize = 2.0
DataRepresentation3.Source.TipLength = 0.35
DataRepresentation3.SelectionCellLabelFormat = ''
DataRepresentation3.Scaling = 0
DataRepresentation3.StaticMode = 0
DataRepresentation3.SelectionCellLabelColor = [0.0, 1.0, 0.0]
DataRepresentation3.Source.TipRadius = 0.1
DataRepresentation3.EdgeColor = [0.0, 0.0, 0.5000076295109483]
DataRepresentation3.CubeAxesXAxisTickVisibility = 1
DataRepresentation3.SelectionCellLabelVisibility = 0
DataRepresentation3.NonlinearSubdivisionLevel = 1
DataRepresentation3.CubeAxesColor = [1.0, 1.0, 1.0]
DataRepresentation3.Representation = 'Surface'
DataRepresentation3.CustomBounds = [0.0, 1.0, 0.0, 1.0, 0.0, 1.0]
DataRepresentation3.CubeAxesXAxisMinorTickVisibility = 1
DataRepresentation3.Orientation = [0.0, 0.0, 0.0]
DataRepresentation3.CubeAxesXTitle = 'X-Axis'
DataRepresentation3.ScalarOpacityUnitDistance = 0.017319894955591157
DataRepresentation3.BackfaceOpacity = 1.0
DataRepresentation3.SelectionCellFieldDataArrayName = 'vtkOriginalCellIds'
DataRepresentation3.SelectionColor = [1.0, 0.0, 1.0]
DataRepresentation3.Ambient = 0.0
DataRepresentation3.SelectionPointLabelFontSize = 18
DataRepresentation3.ScaleFactor = 1.0
DataRepresentation3.BackfaceAmbientColor = [1.0, 1.0, 1.0]
DataRepresentation3.Source.ShaftRadius = 0.03
DataRepresentation3.ScalarOpacityFunction = []
DataRepresentation3.SelectMaskArray = ''
DataRepresentation3.SelectionLineWidth = 2.0
DataRepresentation3.CubeAxesZAxisMinorTickVisibility = 1
DataRepresentation3.CubeAxesXAxisVisibility = 1
DataRepresentation3.Interpolation = 'Gouraud'
DataRepresentation3.SelectMapper = 'Projected tetra'
DataRepresentation3.SelectionCellLabelFontFamily = 'Arial'
DataRepresentation3.SelectionCellLabelItalic = 0
DataRepresentation3.CubeAxesYAxisMinorTickVisibility = 1
DataRepresentation3.CubeAxesZGridLines = 0
DataRepresentation3.ExtractedBlockIndex = 0
DataRepresentation3.SelectionPointLabelOpacity = 1.0
DataRepresentation3.Pickable = 1
DataRepresentation3.CustomBoundsActive = [0, 0, 0]
DataRepresentation3.SelectionRepresentation = 'Wireframe'
DataRepresentation3.SelectionPointLabelBold = 0
DataRepresentation3.ColorArrayName = ''
DataRepresentation3.SelectionPointLabelItalic = 0
DataRepresentation3.AllowSpecularHighlightingWithScalarColoring = 0
DataRepresentation3.SpecularColor = [1.0, 1.0, 1.0]
DataRepresentation3.LookupTable = []
DataRepresentation3.SelectionPointSize = 5.0
DataRepresentation3.SelectionCellLabelBold = 0
DataRepresentation3.Orient = 0

Render()

view = GetActiveView()
view.CameraPosition = [0, 0, 0]
view.CameraFocalPoint = [0, 0, -1]
ResetCamera()

AnimateReader(results_OpenFOAM, filename="user/results/tmp/tmp.jpg")

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