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[OpenFOAM] Paraview Pciture Generation

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Old   September 7, 2016, 05:19
Default Paraview Pciture Generation
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Aravind Krishnamoorthi
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Hi i am using Paraview 4.4.0 to generate pictures for the mixture formation in a engine.

I have many time steps form openFoam calculation eg. 384 383.1 383.2 383.3.......384.

Using trace option i generated a python script to generate the pictures.

But during picture generation i do not need pictures to be generated at all time steps but only for 383 and 384.

I am attaching the code here..

#### import the simple module from the paraview
from paraview.simple import *
#### disable automatic camera reset on 'Show'
paraview.simple._DisableFirstRenderCameraReset()

# create a new 'OpenFOAMReader'
casefoam = OpenFOAMReader(FileName='/usr2/tmp/Krishnamoorthi/case0383/case.foam')
casefoam.CaseType = 'Decomposed Case'
casefoam.MeshRegions = ['internalMesh', 'lagrangian/defaultCloud']
casefoam.CellArrays = ['CO', 'CO2', 'Chi', 'EqT', 'H', 'H2', 'H2O', 'N', 'N2', 'NO', 'O', 'O2', 'OH', 'RGA', 'RGA_inl', 'RGA_out', 'T', 'T_tmp', 'U', 'Ydefault', 'Ytf', 'Yto2', 'Z', 'Z2', 'alphat', 'cellMotionU', 'dRoHR', 'dropNum', 'dropVol', 'epsilon', 'fuel', 'k', 'liquidFrom0', 'liquidFrom1', 'liquidFrom2', 'liquidFrom3', 'liquidFrom4', 'meanDropMass', 'meanDropTemp', 'meanTheta', 'meanTheta0', 'meanURel', 'mut', 'omega', 'p', 'p_tmp', 'reactFuel', 'rho', 'voidFrac']
casefoam.LagrangianArrays = ['BY', 'T', 'Tboil', 'U', 'Uturb', 'Weber', 'ct', 'ctRT', 'd', 'd0', 'deltaD', 'dropletMass', 'fuel', 'fuels', 'injector', 'lifeTime', 'liquidCore', 'm', 'ms', 'n', 'origId', 'origProcId', 'peps', 'pk', 'rBubble', 'rBubbleDot', 'secondKHindex', 'tTurb', 'y', 'yDot']

# get animation scene
animationScene1 = GetAnimationScene()

# update animation scene based on data timesteps
animationScene1.UpdateAnimationUsingDataTimeSteps( )

# get active view
renderView1 = GetActiveViewOrCreate('RenderView')
# uncomment following to set a specific view size
# renderView1.ViewSize = [1499, 906]

# show data in view
casefoamDisplay = Show(casefoam, renderView1)
# trace defaults for the display properties.
casefoamDisplay.ColorArrayName = [None, '']

# reset view to fit data
renderView1.ResetCamera()

# set scalar coloring
ColorBy(casefoamDisplay, ('FIELD', 'vtkBlockColors'))

# show color bar/color legend
casefoamDisplay.SetScalarBarVisibility(renderView1 , True)

# get color transfer function/color map for 'vtkBlockColors'
vtkBlockColorsLUT = GetColorTransferFunction('vtkBlockColors')

# get opacity transfer function/opacity map for 'vtkBlockColors'
vtkBlockColorsPWF = GetOpacityTransferFunction('vtkBlockColors')

# create a new 'Slice'
slice1 = Slice(Input=casefoam)
slice1.SliceType = 'Plane'
slice1.SliceOffsetValues = [0.0]

# init the 'Plane' selected for 'SliceType'
slice1.SliceType.Origin = [0.0, -0.037722447887063026, 0.02939213067293167]

# toggle 3D widget visibility (only when running from the GUI)
Hide3DWidgets(proxy=slice1)

# get color transfer function/color map for 'p'
pLUT = GetColorTransferFunction('p')

# show data in view
slice1Display = Show(slice1, renderView1)
# trace defaults for the display properties.
slice1Display.ColorArrayName = ['POINTS', 'p']
slice1Display.LookupTable = pLUT

# hide data in view
Hide(casefoam, renderView1)

# show color bar/color legend
slice1Display.SetScalarBarVisibility(renderView1, True)

# get opacity transfer function/opacity map for 'p'
pPWF = GetOpacityTransferFunction('p')

# set scalar coloring
ColorBy(slice1Display, ('POINTS', 'RGA'))

# rescale color and/or opacity maps used to include current data range
slice1Display.RescaleTransferFunctionToDataRange(T rue)

# show color bar/color legend
slice1Display.SetScalarBarVisibility(renderView1, True)

# get color transfer function/color map for 'RGA'
rGALUT = GetColorTransferFunction('RGA')

# get opacity transfer function/opacity map for 'RGA'
rGAPWF = GetOpacityTransferFunction('RGA')

# current camera placement for renderView1
renderView1.CameraPosition = [0.3823356101683453, -0.037722447887063026, 0.02939213067293167]
renderView1.CameraFocalPoint = [0.0, -0.037722447887063026, 0.02939213067293167]
renderView1.CameraViewUp = [0.0, 0.0, 1.0]
renderView1.CameraParallelScale = 0.09895573753246074

# save screenshot
SaveScreenshot('/usr2/tmp/Krishnamoorthi/case0383/New/Test/4.png', magnification=1, quality=100, view=renderView1)

# current camera placement for renderView1
renderView1.CameraPosition = [0.3823356101683453, -0.037722447887063026, 0.02939213067293167]
renderView1.CameraFocalPoint = [0.0, -0.037722447887063026, 0.02939213067293167]
renderView1.CameraViewUp = [0.0, 0.0, 1.0]
renderView1.CameraParallelScale = 0.09895573753246074

# save screenshot
SaveScreenshot('/usr2/tmp/Krishnamoorthi/case0383/New/Test/4,1.png', magnification=1, quality=100, view=renderView1)

#### saving camera placements for all active views

# current camera placement for renderView1
renderView1.CameraPosition = [0.3823356101683453, -0.037722447887063026, 0.02939213067293167]
renderView1.CameraFocalPoint = [0.0, -0.037722447887063026, 0.02939213067293167]
renderView1.CameraViewUp = [0.0, 0.0, 1.0]
renderView1.CameraParallelScale = 0.09895573753246074

#### uncomment the following to render all views
# RenderAllViews()
# alternatively, if you want to write images, you can use SaveScreenshot(...).

Is it possible to generate pictures at certain time steps?
If yes can someone tell me where to insert the option in the code
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