[Paraview] using user selected cells in the python shell

[Richardson CFD]

managed to achieve it using the following (python shell) code:

from paraview.simple import *

####extract
ExtractSelection()
Show()

####filter
trans_prog_filter = ProgrammableFilter()
RenameSource("Translate", trans_prog_filter)
trans_prog_filter.Script = """
pdi = self.GetInput()
pdo =  self.GetOutput()
newPoints = vtk.vtkPoints()
numPoints = pdi.GetNumberOfPoints()
for i in range(0, numPoints):
    coord = pdi.GetPoint(i)
    x, y, z = coord[:3]
    x = x - 1.0
    y = y + 0.0
    z = z + 0.0
    newPoints.InsertPoint(i, x, y, z)
pdo.SetPoints(newPoints)
"""
Show()

-- 
Richardson CFD
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