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import vtk
import pygslib


    

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# get polydata from dxf
wf = pygslib.vtktools.dxf2PolyData('mydxf.dxf')


    

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# get number of regions 
c = vtk.vtkConnectivityFilter()
c.SetInputData(wf)
c.Update()
n = c.GetNumberOfExtractedRegions()


    

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# save regions in separated files 
c.SetExtractionModeToSpecifiedRegions()
for i in range(n):
    c.InitializeSpecifiedRegionList()
    c.AddSpecifiedRegion(i)
    c.Modified()
    c.Update()
    pygslib.vtktools.SavePolydata(c.GetOutput(), 'mywf_region{}'.format(i))


    

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