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[OpenFOAM] Saving screenshot in Paraview Catalyst

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Old   July 29, 2018, 18:51
Default Saving screenshot in Paraview Catalyst
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I am working with Paraview Catalyst on a cluster to capture images for a simple dambreak case of openfoam. what I get is a blank white screen with axis. Can someone help?

def CreateCoProcessor():
  def _CreatePipeline(coprocessor, datadescription):
    class Pipeline:

      input1 = coprocessor.CreateProducer(datadescription, "region")

      slice2 = Slice(Input=input1, guiName="Slice2", Crinkleslice=0, SliceOffsetValues=[0.0], Triangulatetheslice=1, SliceType="Plane")
      slice2.SliceType.Offset = 0.0
      slice2.SliceType.Origin = [0.5, 0.5, 0.5]
      slice2.SliceType.Normal = [0, 1, 0]

      sliceWriter = servermanager.writers.XMLPPolyDataWriter(Input=slice2)
      coprocessor.RegisterWriter(sliceWriter, filename='slice_%t.pvtp', freq=10)

      imageDataWriter1 = servermanager.writers.XMLPImageDataWriter(Input=input1)
      coprocessor.RegisterWriter(imageDataWriter1, filename='images_%t.pvti', freq=10)


      # Create a new 'Render View'
      renderView0.ViewSize = [1920, 1080]
      renderView0.AnnotationColor=[0.0, 0.0, 0.0]
      renderView0.CameraPosition = [0.0, 0.0, 66.92130429902464]
      renderView0.CameraParallelScale = 17.320508075688775
      renderView0.Background = [1, 1, 1]

#      coprocessor.RegisterView(renderView0, filename='image_%t.png', freq=10, fittoscreen=0, magnification=1, width=868, height=781,
#                                cinema={})
#      renderView0.ViewTime = datadescription.GetTime()    
#      SetActiveView(renderView0)

# The code till above prints only blank images , with nothing in it. I've been trying to #pass data with Show(renderView0) or something similar, but was not able to make it #work.

      a1_alpha_PVLookupTable=GetLookupTableForArray("alpha.water",1,RGBPoints=[0.0,0.0,0.5,0.0,0.635,1.0,0.5,0.0], VectorMode='Magnitude',
NanColor=[0.498039,0.498039,0.498039], ColorSpace='RGB',ScalarRangeInitialized=1.0,LockScalarRange=1)

      a1_alpha_PiecewiseFunction = CreatePiecewiseFunction(Points=[0.0,0.0,0.5,0.0,0.635,1.0,0.5,0.0])

      Datarepresentation1 = Show()
      Datarepresentation1.EdgeColor=[0.0, 0.0, 0.5]

      Datarepresentation1.ColorArrayName = ('CELL_DATA','alpha.water')
      Datarepresentation1.LookupTable = a1_alpha_PVLookupTable
      Datarepresentation1.ScalarOpacityUnitDistance = 0.004

      coprocessor.RegisterView(Datarepresentation1, filename='image_%t.png', freq=10, fittoscreen=0, magnification=1, width=868, height=781, cinema={})
      renderView0.ViewTime = datadescription.GetTime()

   return Pipeline()
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paraview 5.5, paraview catalyst

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