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#!/usr/bin/env python
# -*- coding: utf-8 -*-
from vtkmodules.vtkIOImage import vtkTIFFReader
from vtkmodules.vtkImagingCore import vtkImageShrink3D
from vtkmodules.vtkImagingMath import vtkImageMaskBits
from vtkmodules.vtkRenderingCore import (
vtkActor2D,
vtkImageMapper,
vtkRenderWindow,
vtkRenderWindowInteractor,
vtkRenderer,
)
import vtkmodules.vtkInteractionStyle
import vtkmodules.vtkRenderingFreeType
import vtkmodules.vtkRenderingOpenGL2
import vtkmodules.test.Testing
from vtkmodules.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()
class TestAllMaskBits(vtkmodules.test.Testing.vtkTest):
def testAllMaskBits(self):
# This script calculates the luminance of an image
renWin = vtkRenderWindow()
# Image pipeline
image1 = vtkTIFFReader()
image1.SetFileName(VTK_DATA_ROOT + "/Data/beach.tif")
# "beach.tif" image contains ORIENTATION tag which is
# ORIENTATION_TOPLEFT (row 0 top, col 0 lhs) type. The TIFF
# reader parses this tag and sets the internal TIFF image
# orientation accordingly. To overwrite this orientation with a vtk
# convention of ORIENTATION_BOTLEFT (row 0 bottom, col 0 lhs ), invoke
# SetOrientationType method with parameter value of 4.
image1.SetOrientationType(4)
shrink = vtkImageShrink3D()
shrink.SetInputConnection(image1.GetOutputPort())
shrink.SetShrinkFactors(2, 2, 1)
operators = ["ByPass", "And", "Nand", "Xor", "Or", "Nor"]
operator = dict()
mapper = dict()
actor = dict()
imager = dict()
for idx, op in enumerate(operators):
if op != "ByPass":
operator.update({idx: vtkImageMaskBits()})
operator[idx].SetInputConnection(shrink.GetOutputPort())
eval('operator[' + str(idx) + '].SetOperationTo' + op + '()')
operator[idx].SetMasks(255, 255, 0)
mapper.update({idx: vtkImageMapper()})
if op != "ByPass":
mapper[idx].SetInputConnection(operator[idx].GetOutputPort())
else:
mapper[idx].SetInputConnection(shrink.GetOutputPort())
mapper[idx].SetColorWindow(255)
mapper[idx].SetColorLevel(127.5)
actor.update({idx: vtkActor2D()})
actor[idx].SetMapper(mapper[idx])
imager.update({idx: vtkRenderer()})
imager[idx].AddViewProp(actor[idx])
renWin.AddRenderer(imager[idx])
column = 0
row = 0
deltaX = 1.0 / 3.0
deltaY = 1.0 / 2.0
for idx in range(len(operators)):
imager[idx].SetViewport(column * deltaX, row * deltaY, (column + 1) * deltaX, (row + 1) * deltaY)
column += 1
if column > 2:
column = 0
row += 1
renWin.SetSize(384, 256)
# render and interact with data
iRen = vtkRenderWindowInteractor()
iRen.SetRenderWindow(renWin);
renWin.Render()
img_file = "TestAllMaskBits.png"
vtkmodules.test.Testing.compareImage(iRen.GetRenderWindow(), vtkmodules.test.Testing.getAbsImagePath(img_file))
vtkmodules.test.Testing.interact()
if __name__ == "__main__":
vtkmodules.test.Testing.main([(TestAllMaskBits, 'test')])
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