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#!/usr/bin/env python
from vtkmodules.vtkFiltersCore import (
vtkCleanPolyData,
vtkExtractEdges,
vtkTriangleFilter,
vtkWindowedSincPolyDataFilter,
)
from vtkmodules.vtkIOGeometry import (
vtkBYUWriter,
vtkCGMWriter,
vtkIVWriter,
vtkMCubesWriter,
vtkSTLWriter,
)
from vtkmodules.vtkIOLegacy import (
vtkDataSetWriter,
vtkPolyDataReader,
vtkPolyDataWriter,
)
from vtkmodules.vtkRenderingCore import (
vtkActor,
vtkPolyDataMapper,
vtkRenderWindow,
vtkRenderWindowInteractor,
vtkRenderer,
)
import vtkmodules.vtkInteractionStyle
import vtkmodules.vtkRenderingFreeType
import vtkmodules.vtkRenderingOpenGL2
from vtkmodules.util.misc import vtkGetDataRoot
import os
VTK_DATA_ROOT = vtkGetDataRoot()
# seems should always be true
has_vtkIVWriter = True
# Create the RenderWindow, Renderer and both Actors
#
ren1 = vtkRenderer()
renWin = vtkRenderWindow()
renWin.AddRenderer(ren1)
iren = vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
# read data
#
input = vtkPolyDataReader()
input.SetFileName(VTK_DATA_ROOT + "/Data/brainImageSmooth.vtk")
#
# generate vectors
clean = vtkCleanPolyData()
clean.SetInputConnection(input.GetOutputPort())
smooth = vtkWindowedSincPolyDataFilter()
smooth.SetInputConnection(clean.GetOutputPort())
smooth.GenerateErrorVectorsOn()
smooth.GenerateErrorScalarsOn()
# Test with the Hamming window function, as vtkWindowedSincPolyDataFilter used for many years
smooth.SetWindowFunctionToHamming()
smooth.Update()
mapper = vtkPolyDataMapper()
mapper.SetInputConnection(smooth.GetOutputPort())
mapper.SetScalarRange(smooth.GetOutput().GetScalarRange())
brain = vtkActor()
brain.SetMapper(mapper)
# Add the actors to the renderer, set the background and size
#
ren1.AddActor(brain)
renWin.SetSize(320,240)
ren1.GetActiveCamera().SetPosition(149.653,-65.3464,96.0401)
ren1.GetActiveCamera().SetFocalPoint(146.003,22.3839,0.260541)
ren1.GetActiveCamera().SetViewAngle(30)
ren1.GetActiveCamera().SetViewUp(-0.255578,-0.717754,-0.647695)
ren1.GetActiveCamera().SetClippingRange(79.2526,194.052)
iren.Initialize()
renWin.Render()
# render the image
#
# prevent the tk window from showing up then start the event loop
#
# If the current directory is writable, then test the witers
#
if os.access(".", os.W_OK):
# test the writers
dsw = vtkDataSetWriter()
dsw.SetInputConnection(smooth.GetOutputPort())
dsw.SetFileName("brain.dsw")
dsw.Write()
os.remove("brain.dsw")
pdw = vtkPolyDataWriter()
pdw.SetInputConnection(smooth.GetOutputPort())
pdw.SetFileName("brain.pdw")
pdw.Write()
os.remove("brain.pdw")
if has_vtkIVWriter:
iv = vtkIVWriter()
iv.SetInputConnection(smooth.GetOutputPort())
iv.SetFileName("brain.iv")
iv.Write()
os.remove("brain.iv")
#
# the next writers only handle triangles
triangles = vtkTriangleFilter()
triangles.SetInputConnection(smooth.GetOutputPort())
if has_vtkIVWriter:
iv2 = vtkIVWriter()
iv2.SetInputConnection(triangles.GetOutputPort())
iv2.SetFileName("brain2.iv")
iv2.Write()
os.remove("brain2.iv")
if has_vtkIVWriter:
edges = vtkExtractEdges()
edges.SetInputConnection(triangles.GetOutputPort())
iv3 = vtkIVWriter()
iv3.SetInputConnection(edges.GetOutputPort())
iv3.SetFileName("brain3.iv")
iv3.Write()
os.remove("brain3.iv")
byu = vtkBYUWriter()
byu.SetGeometryFileName("brain.g")
byu.SetScalarFileName("brain.s")
byu.SetDisplacementFileName("brain.d")
byu.SetInputConnection(triangles.GetOutputPort())
byu.Write()
os.remove("brain.g")
os.remove("brain.s")
os.remove("brain.d")
mcubes = vtkMCubesWriter()
mcubes.SetInputConnection(triangles.GetOutputPort())
mcubes.SetFileName("brain.tri")
mcubes.SetLimitsFileName("brain.lim")
mcubes.Write()
os.remove("brain.lim")
os.remove("brain.tri")
stl = vtkSTLWriter()
stl.SetInputConnection(triangles.GetOutputPort())
stl.SetFileName("brain.stl")
stl.Write()
os.remove("brain.stl")
stlBinary = vtkSTLWriter()
stlBinary.SetInputConnection(triangles.GetOutputPort())
stlBinary.SetFileName("brainBinary.stl")
stlBinary.SetFileType(2)
stlBinary.Write()
os.remove("brainBinary.stl")
cgm = vtkCGMWriter()
cgm.SetInputConnection(triangles.GetOutputPort())
cgm.SetFileName("brain.cgm")
cgm.Write()
os.remove("brain.cgm")
# --- end of script --
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