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#!/usr/bin/env python
import os
from vtkmodules.vtkCommonCore import (
vtkDoubleArray,
vtkStringArray,
)
from vtkmodules.vtkCommonTransforms import vtkTransform
from vtkmodules.vtkFiltersCore import vtkGlyph3D
from vtkmodules.vtkFiltersGeneral import vtkTransformFilter
from vtkmodules.vtkFiltersSources import (
vtkPointSource,
vtkSphereSource,
)
from vtkmodules.vtkIOMINC import (
vtkMNITagPointReader,
vtkMNITagPointWriter,
)
from vtkmodules.vtkRenderingCore import (
vtkActor,
vtkActor2D,
vtkDataSetMapper,
vtkRenderWindow,
vtkRenderWindowInteractor,
vtkRenderer,
vtkTextProperty,
)
from vtkmodules.vtkRenderingLabel import (
vtkLabelPlacementMapper,
vtkPointSetToLabelHierarchy,
)
import vtkmodules.vtkInteractionStyle
import vtkmodules.vtkRenderingFreeType
import vtkmodules.vtkRenderingOpenGL2
from vtkmodules.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()
# Test label reading from an MNI tag file
#
# The current directory must be writeable.
#
try:
fname = "mni-tagtest.tag"
channel = open(fname, "wb")
channel.close()
# create some random points in a sphere
#
sphere1 = vtkPointSource()
sphere1.SetNumberOfPoints(13)
xform = vtkTransform()
xform.RotateWXYZ(20, 1, 0, 0)
xformFilter = vtkTransformFilter()
xformFilter.SetTransform(xform)
xformFilter.SetInputConnection(sphere1.GetOutputPort())
labels = vtkStringArray()
labels.InsertNextValue("0")
labels.InsertNextValue("1")
labels.InsertNextValue("2")
labels.InsertNextValue("3")
labels.InsertNextValue("Halifax")
labels.InsertNextValue("Toronto")
labels.InsertNextValue("Vancouver")
labels.InsertNextValue("Larry")
labels.InsertNextValue("Bob")
labels.InsertNextValue("Jackie")
labels.InsertNextValue("10")
labels.InsertNextValue("11")
labels.InsertNextValue("12")
weights = vtkDoubleArray()
weights.InsertNextValue(1.0)
weights.InsertNextValue(1.1)
weights.InsertNextValue(1.2)
weights.InsertNextValue(1.3)
weights.InsertNextValue(1.4)
weights.InsertNextValue(1.5)
weights.InsertNextValue(1.6)
weights.InsertNextValue(1.7)
weights.InsertNextValue(1.8)
weights.InsertNextValue(1.9)
weights.InsertNextValue(0.9)
weights.InsertNextValue(0.8)
weights.InsertNextValue(0.7)
writer = vtkMNITagPointWriter()
writer.SetFileName(fname)
writer.SetInputConnection(sphere1.GetOutputPort())
writer.SetInputConnection(1, xformFilter.GetOutputPort())
writer.SetLabelText(labels)
writer.SetWeights(weights)
writer.SetComments("Volume 1: sphere points\nVolume 2: transformed points")
writer.Write()
reader = vtkMNITagPointReader()
reader.CanReadFile(fname)
reader.SetFileName(fname)
textProp = vtkTextProperty()
textProp.SetFontSize(12)
textProp.SetColor(1.0, 1.0, 0.5)
labelHier = vtkPointSetToLabelHierarchy()
labelHier.SetInputConnection(reader.GetOutputPort())
labelHier.SetTextProperty(textProp)
labelHier.SetLabelArrayName("LabelText")
labelHier.SetMaximumDepth(15)
labelHier.SetTargetLabelCount(12)
labelMapper = vtkLabelPlacementMapper()
labelMapper.SetInputConnection(labelHier.GetOutputPort())
labelMapper.UseDepthBufferOff()
labelMapper.SetShapeToRect()
labelMapper.SetStyleToOutline()
labelActor = vtkActor2D()
labelActor.SetMapper(labelMapper)
glyphSource = vtkSphereSource()
glyphSource.SetRadius(0.01)
glyph = vtkGlyph3D()
glyph.SetSourceConnection(glyphSource.GetOutputPort())
glyph.SetInputConnection(reader.GetOutputPort())
mapper = vtkDataSetMapper()
mapper.SetInputConnection(glyph.GetOutputPort())
actor = vtkActor()
actor.SetMapper(mapper)
# Create rendering stuff
ren1 = vtkRenderer()
renWin = vtkRenderWindow()
renWin.SetMultiSamples(0)
renWin.AddRenderer(ren1)
iren = vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
# Add the actors to the renderer, set the background and size
#
ren1.AddViewProp(actor)
ren1.AddViewProp(labelActor)
ren1.SetBackground(0, 0, 0)
renWin.SetSize(300, 300)
threshold = 0.06
renWin.Render()
try:
os.remove(fname)
except OSError:
pass
# render the image
#
# iren.Start()
except IOError:
print("Unable to test the writer/reader.")
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