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#!/usr/bin/env python
from vtkmodules.vtkFiltersGeneral import vtkOBBDicer
from vtkmodules.vtkFiltersSources import vtkOutlineCornerFilter
from vtkmodules.vtkIOGeometry import vtkSTLReader
from vtkmodules.vtkRenderingCore import (
vtkActor,
vtkDataSetMapper,
vtkPolyDataMapper,
vtkRenderWindow,
vtkRenderWindowInteractor,
vtkRenderer,
)
import vtkmodules.vtkInteractionStyle
import vtkmodules.vtkRenderingFreeType
import vtkmodules.vtkRenderingOpenGL2
from vtkmodules.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()
# Create the RenderWindow, Renderer and both Actors
#
ren1 = vtkRenderer()
renWin = vtkRenderWindow()
renWin.AddRenderer(ren1)
iren = vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
# create pipeline
#
reader = vtkSTLReader()
reader.SetFileName(VTK_DATA_ROOT + "/Data/42400-IDGH.stl")
dicer = vtkOBBDicer()
dicer.SetInputConnection(reader.GetOutputPort())
dicer.SetNumberOfPointsPerPiece(1000)
dicer.Update()
isoMapper = vtkDataSetMapper()
isoMapper.SetInputConnection(dicer.GetOutputPort())
isoMapper.SetScalarRange(0,dicer.GetNumberOfActualPieces())
isoActor = vtkActor()
isoActor.SetMapper(isoMapper)
isoActor.GetProperty().SetColor(0.7,0.3,0.3)
outline = vtkOutlineCornerFilter()
outline.SetInputConnection(reader.GetOutputPort())
outlineMapper = vtkPolyDataMapper()
outlineMapper.SetInputConnection(outline.GetOutputPort())
outlineActor = vtkActor()
outlineActor.SetMapper(outlineMapper)
outlineActor.GetProperty().SetColor(0,0,0)
# Add the actors to the renderer, set the background and size
#
ren1.AddActor(outlineActor)
ren1.AddActor(isoActor)
ren1.SetBackground(1,1,1)
renWin.SetSize(400,400)
ren1.SetBackground(0.5,0.5,0.6)
# render the image
#
renWin.Render()
# prevent the tk window from showing up then start the event loop
# --- end of script --
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