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#!/usr/bin/env python
from vtkmodules.vtkCommonColor import vtkNamedColors
from vtkmodules.vtkFiltersGeneral import vtkImageMarchingCubes
from vtkmodules.vtkFiltersModeling import vtkOutlineFilter
from vtkmodules.vtkIOImage import vtkImageReader2
from vtkmodules.vtkRenderingCore import (
vtkActor,
vtkPolyDataMapper,
vtkRenderWindow,
vtkRenderWindowInteractor,
vtkRenderer,
)
import vtkmodules.vtkInteractionStyle
import vtkmodules.vtkRenderingFreeType
import vtkmodules.vtkRenderingOpenGL2
from math import cos, sin, pi
from vtkmodules.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()
def GetRGBColor(colorName):
'''
Return the red, green and blue components for a
color as doubles.
'''
rgb = [0.0, 0.0, 0.0] # black
vtkNamedColors().GetColorRGB(colorName, rgb)
return rgb
# Create the RenderWindow, Renderer and both Actors
#
ren1 = vtkRenderer()
renWin = vtkRenderWindow()
renWin.AddRenderer(ren1)
iren = vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
# create pipeline
#
angle = pi/2
direction = [
-1, 0, 0,
0, cos(angle), -sin(angle),
0, -sin(angle), -cos(angle)
]
reader = vtkImageReader2()
reader.SetDataScalarTypeToUnsignedShort()
reader.SetFilePrefix(VTK_DATA_ROOT + "/Data/headsq/quarter")
reader.SetDataExtent(0, 63, 0, 63, 1, 93)
reader.SetDataSpacing(3.2, 3.2, 1.5)
reader.SetDataOrigin(0.0, 0.0, 0.0)
reader.SetDataDirection(direction)
iso = vtkImageMarchingCubes()
iso.SetInputConnection(reader.GetOutputPort())
iso.SetValue(0, 1150)
iso.SetInputMemoryLimit(100)
isoMapper = vtkPolyDataMapper()
isoMapper.SetInputConnection(iso.GetOutputPort())
isoMapper.ScalarVisibilityOff()
isoActor = vtkActor()
isoActor.SetMapper(isoMapper)
isoActor.GetProperty().SetColor(GetRGBColor('antique_white'))
outline = vtkOutlineFilter()
outline.SetInputConnection(reader.GetOutputPort())
outlineMapper = vtkPolyDataMapper()
outlineMapper.SetInputConnection(outline.GetOutputPort())
outlineActor = vtkActor()
outlineActor.SetMapper(outlineMapper)
outlineActor.VisibilityOff()
# Add the actors to the renderer, set the background and size
#
ren1.AddActor(outlineActor)
ren1.AddActor(isoActor)
ren1.SetBackground(0.2, 0.3, 0.4)
renWin.SetSize(200, 200)
ren1.ResetCamera()
renWin.Render()
# render the image
#
iren.Initialize()
#iren.Start()
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