def GetRandomHills():
uResolution = 51
vResolution = 51
surface = vtk.vtkParametricRandomHills()
surface.SetRandomSeed(1)
surface.SetNumberOfHills(30)
# If you want a plane
# surface.SetHillAmplitude(0)
source = vtk.vtkParametricFunctionSource()
source.SetUResolution(uResolution)
source.SetVResolution(vResolution)
source.SetParametricFunction(surface)
source.Update()
# Build the tcoords
pd = UVTcoords(uResolution, vResolution, source.GetOutput())
# Now the tangents
tangents = vtk.vtkPolyDataTangents()
tangents.SetInputData(pd)
tangents.Update()
transform = vtk.vtkTransform()
transform.RotateZ(180.0)
transform.RotateX(90.0)
transformFilter = vtk.vtkTransformPolyDataFilter()
transformFilter.SetInputConnection(tangents.GetOutputPort())
transformFilter.SetTransform(transform)
transformFilter.Update()
return transformFilter.GetOutput()
def MakeParametricHills():
"""
Make a parametric hills surface as the source.
:return: vtkPolyData with normal and scalar data.
"""
fn = vtk.vtkParametricRandomHills()
fn.AllowRandomGenerationOn()
fn.SetRandomSeed(1)
fn.SetNumberOfHills(30)
# Make the normals face out of the surface.
# Not needed with VTK 8.0 or later.
# if fn.GetClassName() == 'vtkParametricRandomHills':
# fn.ClockwiseOrderingOff()
source = vtk.vtkParametricFunctionSource()
source.SetParametricFunction(fn)
source.SetUResolution(50)
source.SetVResolution(50)
source.SetScalarModeToZ()
source.Update()
# Name the arrays (not needed in VTK 6.2+ for vtkParametricFunctionSource)
source.GetOutput().GetPointData().GetNormals().SetName('Normals')
# We have calculated the elevation, just rename the scalars.
source.GetOutput().GetPointData().GetScalars().SetName('Elevation')
return CalculateCurvatures(source.GetOutput())
def ParametricRandomHills():
randomHills = vtk.vtkParametricRandomHills()
# randomHills.AllowRandomGenerationOff()
randomHills.SetRandomSeed(1)
randomHills.SetNumberOfHills(30)
randomHillsSource = vtk.vtkParametricFunctionSource()
randomHillsSource.SetParametricFunction(randomHills)
randomHillsSource.SetScalarModeToZ()
randomHillsSource.SetUResolution(10)
randomHillsSource.SetVResolution(10)
return randomHillsSource
def CreateRandomHills():
randomHills = vtk.vtkParametricRandomHills()
randomHills.AllowRandomGenerationOff()
source = vtk.vtkParametricFunctionSource()
source.SetParametricFunction(randomHills)
source.Update()
polydata = source.GetOutput()
#polydata.Update()
return polydata
def MakeParametricSource():
'''
Make a parametric surface as the source.
:return: vtkPolyData with normal and scalar data.
'''
fn = vtk.vtkParametricRandomHills()
fn.AllowRandomGenerationOn()
fn.SetRandomSeed(1)
fn.SetNumberOfHills(30)
if fn.GetClassName() == 'vtkParametricRandomHills':
# Make the normals face out of the surface.
fn.ClockwiseOrderingOff()
source = vtk.vtkParametricFunctionSource()
source.SetParametricFunction(fn)
source.SetUResolution(50)
source.SetVResolution(50)
source.SetScalarModeToZ()
source.Update()
# Name the arrays (not needed in VTK 6.2+ for vtkParametricFunctionSource)
source.GetOutput().GetPointData().GetNormals().SetName('Normals')
source.GetOutput().GetPointData().GetScalars().SetName('Scalars')
return source.GetOutput()
def MakeParametricSource():
'''
Make a parametric surface as the source.
:return: vtkPolyData with normal and scalar data.
'''
fn = vtk.vtkParametricRandomHills()
fn.AllowRandomGenerationOn()
fn.SetRandomSeed(1)
fn.SetNumberOfHills(30)
if fn.GetClassName() == 'vtkParametricRandomHills':
# Make the normals face out of the surface.
fn.ClockwiseOrderingOff()
source = vtk.vtkParametricFunctionSource()
source.SetParametricFunction(fn)
source.SetUResolution(50)
source.SetVResolution(50)
source.SetScalarModeToZ()
source.Update()
# Name the arrays (not needed in VTK 6.2+ for vtkParametricFunctionSource)
source.GetOutput().GetPointData().GetNormals().SetName('Normals')
source.GetOutput().GetPointData().GetScalars().SetName('Scalars')
return source.GetOutput()
def main():
colors = vtk.vtkNamedColors()
colors.SetColor("BkgColor", [26, 51, 102, 255])
parametricObjects = list()
parametricObjects.append(vtk.vtkParametricBoy())
parametricObjects.append(vtk.vtkParametricConicSpiral())
parametricObjects.append(vtk.vtkParametricCrossCap())
parametricObjects.append(vtk.vtkParametricDini())
parametricObjects.append(vtk.vtkParametricEllipsoid())
parametricObjects[-1].SetXRadius(0.5)
parametricObjects[-1].SetYRadius(2.0)
parametricObjects.append(vtk.vtkParametricEnneper())
parametricObjects.append(vtk.vtkParametricFigure8Klein())
parametricObjects.append(vtk.vtkParametricKlein())
parametricObjects.append(vtk.vtkParametricMobius())
parametricObjects[-1].SetRadius(2)
parametricObjects[-1].SetMinimumV(-0.5)
parametricObjects[-1].SetMaximumV(0.5)
parametricObjects.append(vtk.vtkParametricRandomHills())
parametricObjects[-1].AllowRandomGenerationOff()
parametricObjects.append(vtk.vtkParametricRoman())
parametricObjects.append(vtk.vtkParametricSuperEllipsoid())
parametricObjects[-1].SetN1(0.5)
parametricObjects[-1].SetN2(0.1)
parametricObjects.append(vtk.vtkParametricSuperToroid())
parametricObjects[-1].SetN1(0.2)
parametricObjects[-1].SetN2(3.0)
parametricObjects.append(vtk.vtkParametricTorus())
parametricObjects.append(vtk.vtkParametricSpline())
# Add some points to the parametric spline.
inputPoints = vtk.vtkPoints()
rng = vtk.vtkMinimalStandardRandomSequence()
rng.SetSeed(8775070)
for i in range(0, 10):
rng.Next()
x = rng.GetRangeValue(0.0, 1.0)
rng.Next()
y = rng.GetRangeValue(0.0, 1.0)
rng.Next()
z = rng.GetRangeValue(0.0, 1.0)
inputPoints.InsertNextPoint(x, y, z)
parametricObjects[-1].SetPoints(inputPoints)
parametricFunctionSources = list()
renderers = list()
mappers = list()
actors = list()
textmappers = list()
textactors = list()
# Create one text property for all
textProperty = vtk.vtkTextProperty()
textProperty.SetFontSize(12)
textProperty.SetJustificationToCentered()
backProperty = vtk.vtkProperty()
backProperty.SetColor(colors.GetColor3d("Tomato"))
# Create a parametric function source, renderer, mapper, and actor
# for each object
for i in range(0, len(parametricObjects)):
parametricFunctionSources.append(vtk.vtkParametricFunctionSource())
parametricFunctionSources[i].SetParametricFunction(parametricObjects[i])
parametricFunctionSources[i].SetUResolution(51)
parametricFunctionSources[i].SetVResolution(51)
parametricFunctionSources[i].SetWResolution(51)
parametricFunctionSources[i].Update()
mappers.append(vtk.vtkPolyDataMapper())
mappers[i].SetInputConnection(parametricFunctionSources[i].GetOutputPort())
actors.append(vtk.vtkActor())
actors[i].SetMapper(mappers[i])
actors[i].GetProperty().SetColor(colors.GetColor3d("Banana"))
actors[i].GetProperty().SetSpecular(.5)
actors[i].GetProperty().SetSpecularPower(20)
actors[i].SetBackfaceProperty(backProperty)
textmappers.append(vtk.vtkTextMapper())
textmappers[i].SetInput(parametricObjects[i].GetClassName())
textmappers[i].SetTextProperty(textProperty)
textactors.append(vtk.vtkActor2D())
textactors[i].SetMapper(textmappers[i])
textactors[i].SetPosition(100, 16)
renderers.append(vtk.vtkRenderer())
renderers[i].AddActor(actors[i])
renderers[i].AddActor(textactors[i])
renderers[i].SetBackground(colors.GetColor3d("BkgColor"))
# Setup the viewports
xGridDimensions = 4
yGridDimensions = 4
rendererSize = 200
renderWindow = vtk.vtkRenderWindow()
renderWindow.SetWindowName("Parametric Objects Demonstration")
renderWindow.SetSize(rendererSize * xGridDimensions, rendererSize * yGridDimensions)
for row in range(0, yGridDimensions):
for col in range(0, xGridDimensions):
index = row * xGridDimensions + col
# (xmin, ymin, xmax, ymax)
viewport = [float(col) / xGridDimensions,
float(yGridDimensions - (row + 1)) / yGridDimensions,
float(col + 1) / xGridDimensions,
float(yGridDimensions - row) / yGridDimensions]
if index > (len(actors) - 1):
# Add a renderer even if there is no actor.
# This makes the render window background all the same color.
ren = vtk.vtkRenderer()
ren.SetBackground(colors.GetColor3d("BkgColor"))
ren.SetViewport(viewport)
renderWindow.AddRenderer(ren)
continue
renderers[index].SetViewport(viewport)
renderers[index].ResetCamera()
renderers[index].GetActiveCamera().Azimuth(30)
renderers[index].GetActiveCamera().Elevation(-30)
renderers[index].GetActiveCamera().Zoom(0.9)
renderers[index].ResetCameraClippingRange()
renderWindow.AddRenderer(renderers[index])
interactor = vtk.vtkRenderWindowInteractor()
interactor.SetRenderWindow(renderWindow)
renderWindow.Render()
interactor.Start()
def ParametricObjects(self):
parametricObjects = list()
parametricObjects.append(vtk.vtkParametricBoy())
parametricObjects.append(vtk.vtkParametricConicSpiral())
parametricObjects.append(vtk.vtkParametricCrossCap())
parametricObjects.append(vtk.vtkParametricDini())
parametricObjects.append(vtk.vtkParametricEllipsoid())
parametricObjects[-1].SetXRadius(0.5)
parametricObjects[-1].SetYRadius(2.0)
parametricObjects.append(vtk.vtkParametricEnneper())
parametricObjects.append(vtk.vtkParametricFigure8Klein())
parametricObjects.append(vtk.vtkParametricKlein())
parametricObjects.append(vtk.vtkParametricMobius())
parametricObjects.append(vtk.vtkParametricRandomHills())
parametricObjects[-1].AllowRandomGenerationOff()
parametricObjects.append(vtk.vtkParametricRoman())
parametricObjects.append(vtk.vtkParametricSuperEllipsoid())
parametricObjects[-1].SetN1(0.5)
parametricObjects[-1].SetN2(0.1)
parametricObjects.append(vtk.vtkParametricSuperToroid())
parametricObjects[-1].SetN1(0.2)
parametricObjects[-1].SetN2(3.0)
parametricObjects.append(vtk.vtkParametricTorus())
parametricObjects.append(vtk.vtkParametricSpline())
# Add some points to the parametric spline.
# You can use vtkRandom instead of the python random methods.
inputPoints = vtk.vtkPoints()
random.seed(8775070)
for i in range(10):
x = random.uniform(0.0, 1.0)
y = random.uniform(0.0, 1.0)
z = random.uniform(0.0, 1.0)
inputPoints.InsertNextPoint(x, y, z)
parametricObjects[-1].SetPoints(inputPoints)
# There are only 15 objects.
#parametricObjects.append(vtk.??)
parametricFunctionSources = list()
renderers = list()
mappers = list()
actors = list()
textmappers = list()
textactors = list()
# Create a common text property.
textProperty = vtk.vtkTextProperty()
textProperty.SetFontSize(10)
textProperty.SetJustificationToCentered()
# Create a parametric function source, renderer, mapper
# and actor for each object.
for idx, item in enumerate(parametricObjects):
parametricFunctionSources.append(vtk.vtkParametricFunctionSource())
parametricFunctionSources[idx].SetParametricFunction(item)
parametricFunctionSources[idx].Update()
mappers.append(vtk.vtkPolyDataMapper())
mappers[idx].SetInputConnection(
parametricFunctionSources[idx].GetOutputPort())
actors.append(vtk.vtkActor())
actors[idx].SetMapper(mappers[idx])
textmappers.append(vtk.vtkTextMapper())
textmappers[idx].SetInput(item.GetClassName())
textmappers[idx].SetTextProperty(textProperty)
textactors.append(vtk.vtkActor2D())
textactors[idx].SetMapper(textmappers[idx])
textactors[idx].SetPosition(100, 16)
renderers.append(vtk.vtkRenderer())
gridDimensions = 4
for idx in range(len(parametricObjects)):
if idx < gridDimensions * gridDimensions:
renderers.append(vtk.vtkRenderer)
rendererSize = 200
# Create the RenderWindow
#
renderWindow = vtk.vtkRenderWindow()
renderWindow.SetSize(rendererSize * gridDimensions,
rendererSize * gridDimensions)
# Add and position the renders to the render window.
viewport = list()
for row in range(gridDimensions):
for col in range(gridDimensions):
idx = row * gridDimensions + col
viewport[:] = []
viewport.append(
float(col) * rendererSize /
(gridDimensions * rendererSize))
viewport.append(
float(gridDimensions - (row + 1)) * rendererSize /
(gridDimensions * rendererSize))
viewport.append(
float(col + 1) * rendererSize /
(gridDimensions * rendererSize))
viewport.append(
float(gridDimensions - row) * rendererSize /
(gridDimensions * rendererSize))
if idx > (len(parametricObjects) - 1):
continue
renderers[idx].SetViewport(viewport)
renderWindow.AddRenderer(renderers[idx])
renderers[idx].AddActor(actors[idx])
renderers[idx].AddActor(textactors[idx])
renderers[idx].SetBackground(0.2, 0.3, 0.4)
renderers[idx].ResetCamera()
renderers[idx].GetActiveCamera().Azimuth(30)
renderers[idx].GetActiveCamera().Elevation(-30)
renderers[idx].ResetCameraClippingRange()
interactor = vtk.vtkRenderWindowInteractor()
interactor.SetRenderWindow(renderWindow)
renderWindow.Render()
interactor.Start()
def __init__(self, parent = None):
super(VTKFrame, self).__init__(parent)
self.vtkWidget = QVTKRenderWindowInteractor(self)
self.iren = self.vtkWidget.GetRenderWindow().GetInteractor()
vl = QtGui.QVBoxLayout(self)
vl.addWidget(self.vtkWidget)
vl.setContentsMargins(0, 0, 0, 0)
# Create source
# We are going to handle two different sources.
# The first source is a superquadric source.
torus = vtk.vtkSuperquadricSource();
torus.SetCenter(0.0, 0.0, 0.0)
torus.SetScale(1.0, 1.0, 1.0)
torus.SetPhiResolution (64)
torus.SetThetaResolution(64)
torus.SetThetaRoundness (1)
torus.SetThickness (0.5)
torus.SetSize(0.5)
torus.SetToroidal(1)
# Rotate the torus towards the observer (around the x-axis)
torusT = vtk.vtkTransform()
torusT.RotateX(55)
torusTF = vtk.vtkTransformFilter()
torusTF.SetInputConnection(torus.GetOutputPort())
torusTF.SetTransform(torusT)
# The quadric is made of strips, so pass it through a triangle filter as
# the curvature filter only operates on polys
tri = vtk.vtkTriangleFilter()
tri.SetInputConnection(torusTF.GetOutputPort())
# The quadric has nasty discontinuities from the way the edges are generated
# so let's pass it though a CleanPolyDataFilter and merge any points which
# are coincident, or very close
cleaner = vtk.vtkCleanPolyData()
cleaner.SetInputConnection(tri.GetOutputPort())
cleaner.SetTolerance(0.005)
# The next source will be a parametric function
rh = vtk.vtkParametricRandomHills()
rhFnSrc = vtk.vtkParametricFunctionSource()
rhFnSrc.SetParametricFunction(rh)
# Now we have the sources, lets put them into a list.
sources = list()
sources.append(cleaner)
sources.append(cleaner)
sources.append(rhFnSrc)
sources.append(rhFnSrc)
# Colour transfer function.
ctf = vtk.vtkColorTransferFunction()
ctf.SetColorSpaceToDiverging()
ctf.AddRGBPoint(0.0, 0.230, 0.299, 0.754)
ctf.AddRGBPoint(1.0, 0.706, 0.016, 0.150)
cc = list()
for i in range(256):
cc.append(ctf.GetColor(float(i) / 255.0))
# Lookup table.
lut = list()
for idx in range(len(sources)):
lut.append(vtk.vtkLookupTable())
lut[idx].SetNumberOfColors(256)
for i, item in enumerate(cc):
lut[idx].SetTableValue(i, item[0], item[1], item[2], 1.0)
if idx == 0:
lut[idx].SetRange(-10, 10)
if idx == 1:
lut[idx].SetRange(0, 4)
if idx == 2:
lut[idx].SetRange(-1, 1)
if idx == 3:
lut[idx].SetRange(-1, 1)
lut[idx].Build()
curvatures = list()
for idx in range(len(sources)):
curvatures.append(vtk.vtkCurvatures())
if idx % 2 == 0:
curvatures[idx].SetCurvatureTypeToGaussian()
else:
curvatures[idx].SetCurvatureTypeToMean()
renderers = list()
mappers = list()
actors = list()
textmappers = list()
textactors = list()
# Create a common text property.
textProperty = vtk.vtkTextProperty()
textProperty.SetFontSize(10)
textProperty.SetJustificationToCentered()
names = ['Torus - Gaussian Curvature', 'Torus - Mean Curvature', 'Random Hills - Gaussian Curvature', 'Random Hills - Mean Curvature']
# Link the pipeline together.
for idx, item in enumerate(sources):
sources[idx].Update()
curvatures[idx].SetInputConnection(sources[idx].GetOutputPort())
mappers.append(vtk.vtkPolyDataMapper())
mappers[idx].SetInputConnection(curvatures[idx].GetOutputPort())
mappers[idx].SetLookupTable(lut[idx])
mappers[idx].SetUseLookupTableScalarRange(1)
actors.append(vtk.vtkActor())
actors[idx].SetMapper(mappers[idx])
textmappers.append(vtk.vtkTextMapper())
textmappers[idx].SetInput(names[idx])
textmappers[idx].SetTextProperty(textProperty)
textactors.append(vtk.vtkActor2D())
textactors[idx].SetMapper(textmappers[idx])
textactors[idx].SetPosition(150, 16)
renderers.append(vtk.vtkRenderer())
gridDimensions = 2
for idx in range(len(sources)):
if idx < gridDimensions * gridDimensions:
renderers.append(vtk.vtkRenderer)
rendererSize = 300
# Create the RenderWindow
self.vtkWidget.GetRenderWindow().SetSize(rendererSize * gridDimensions, rendererSize * gridDimensions)
# Add and position the renders to the render window.
viewport = list()
for row in range(gridDimensions):
for col in range(gridDimensions):
idx = row * gridDimensions + col
viewport[:] = []
viewport.append(float(col) * rendererSize / (gridDimensions * rendererSize))
viewport.append(float(gridDimensions - (row+1)) * rendererSize / (gridDimensions * rendererSize))
viewport.append(float(col+1)*rendererSize / (gridDimensions * rendererSize))
viewport.append(float(gridDimensions - row) * rendererSize / (gridDimensions * rendererSize))
if idx > (len(sources) - 1):
continue
renderers[idx].SetViewport(viewport)
self.vtkWidget.GetRenderWindow().AddRenderer(renderers[idx])
renderers[idx].AddActor(actors[idx])
renderers[idx].AddActor(textactors[idx])
renderers[idx].SetBackground(0.4,0.3,0.2)
self._initialized = False
def testParametricFunctions(self):
# ------------------------------------------------------------
# Get a texture
# ------------------------------------------------------------
textureReader = vtk.vtkJPEGReader()
textureReader.SetFileName(VTK_DATA_ROOT + "/Data/beach.jpg")
texture = vtk.vtkTexture()
texture.SetInputConnection(textureReader.GetOutputPort())
# ------------------------------------------------------------
# For each parametric surface:
# 1) Create it
# 2) Assign mappers and actors
# 3) Position the object
# 5) Add a label
# ------------------------------------------------------------
# ------------------------------------------------------------
# Create a torus
# ------------------------------------------------------------
torus = vtk.vtkParametricTorus()
torusSource = vtk.vtkParametricFunctionSource()
torusSource.SetParametricFunction(torus)
torusSource.SetScalarModeToPhase()
torusMapper = vtk.vtkPolyDataMapper()
torusMapper.SetInputConnection(torusSource.GetOutputPort())
torusMapper.SetScalarRange(0, 360)
torusActor = vtk.vtkActor()
torusActor.SetMapper(torusMapper)
torusActor.SetPosition(0, 12, 0)
torusTextMapper = vtk.vtkTextMapper()
torusTextMapper.SetInput("Torus")
torusTextMapper.GetTextProperty().SetJustificationToCentered()
torusTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
torusTextMapper.GetTextProperty().SetColor(1, 0, 0)
torusTextMapper.GetTextProperty().SetFontSize(14)
torusTextActor = vtk.vtkActor2D()
torusTextActor.SetMapper(torusTextMapper)
torusTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
torusTextActor.GetPositionCoordinate().SetValue(0, 9.5, 0)
# ------------------------------------------------------------
# Create a Klein bottle
# ------------------------------------------------------------
klein = vtk.vtkParametricKlein()
kleinSource = vtk.vtkParametricFunctionSource()
kleinSource.SetParametricFunction(klein)
kleinSource.SetScalarModeToU0V0()
kleinMapper = vtk.vtkPolyDataMapper()
kleinMapper.SetInputConnection(kleinSource.GetOutputPort())
kleinMapper.SetScalarRange(0, 3)
kleinActor = vtk.vtkActor()
kleinActor.SetMapper(kleinMapper)
kleinActor.SetPosition(8, 10.5, 0)
kleinTextMapper = vtk.vtkTextMapper()
kleinTextMapper.SetInput("Klein")
kleinTextMapper.GetTextProperty().SetJustificationToCentered()
kleinTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
kleinTextMapper.GetTextProperty().SetColor(1, 0, 0)
kleinTextMapper.GetTextProperty().SetFontSize(14)
kleinTextActor = vtk.vtkActor2D()
kleinTextActor.SetMapper(kleinTextMapper)
kleinTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
kleinTextActor.GetPositionCoordinate().SetValue(8, 9.5, 0)
# ------------------------------------------------------------
# Create a Figure-8 Klein
# ------------------------------------------------------------
klein2 = vtk.vtkParametricFigure8Klein()
klein2Source = vtk.vtkParametricFunctionSource()
klein2Source.SetParametricFunction(klein2)
klein2Source.GenerateTextureCoordinatesOn()
klein2Mapper = vtk.vtkPolyDataMapper()
klein2Mapper.SetInputConnection(klein2Source.GetOutputPort())
klein2Mapper.SetScalarRange(0, 3)
klein2Actor = vtk.vtkActor()
klein2Actor.SetMapper(klein2Mapper)
klein2Actor.SetPosition(16, 12, 0)
klein2Actor.SetTexture(texture)
fig8KleinTextMapper = vtk.vtkTextMapper()
fig8KleinTextMapper.SetInput("Fig-8.Klein")
fig8KleinTextMapper.GetTextProperty().SetJustificationToCentered()
fig8KleinTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
fig8KleinTextMapper.GetTextProperty().SetColor(1, 0, 0)
fig8KleinTextMapper.GetTextProperty().SetFontSize(14)
fig8KleinTextActor = vtk.vtkActor2D()
fig8KleinTextActor.SetMapper(fig8KleinTextMapper)
fig8KleinTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
fig8KleinTextActor.GetPositionCoordinate().SetValue(16, 9.5, 0)
# ------------------------------------------------------------
# Create a Mobius strip
# ------------------------------------------------------------
mobius = vtk.vtkParametricMobius()
mobiusSource = vtk.vtkParametricFunctionSource()
mobiusSource.SetParametricFunction(mobius)
mobiusSource.GenerateTextureCoordinatesOn()
mobiusMapper = vtk.vtkPolyDataMapper()
mobiusMapper.SetInputConnection(mobiusSource.GetOutputPort())
mobiusActor = vtk.vtkActor()
mobiusActor.SetMapper(mobiusMapper)
mobiusActor.RotateX(45)
mobiusActor.SetPosition(24, 12, 0)
mobiusActor.SetTexture(texture)
mobiusTextMapper = vtk.vtkTextMapper()
mobiusTextMapper.SetInput("Mobius")
mobiusTextMapper.GetTextProperty().SetJustificationToCentered()
mobiusTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
mobiusTextMapper.GetTextProperty().SetColor(1, 0, 0)
mobiusTextMapper.GetTextProperty().SetFontSize(14)
mobiusTextActor = vtk.vtkActor2D()
mobiusTextActor.SetMapper(mobiusTextMapper)
mobiusTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
mobiusTextActor.GetPositionCoordinate().SetValue(24, 9.5, 0)
# ------------------------------------------------------------
# Create a super toroid
# ------------------------------------------------------------
toroid = vtk.vtkParametricSuperToroid()
toroid.SetN1(2)
toroid.SetN2(3)
toroidSource = vtk.vtkParametricFunctionSource()
toroidSource.SetParametricFunction(toroid)
toroidSource.SetScalarModeToU()
toroidMapper = vtk.vtkPolyDataMapper()
toroidMapper.SetInputConnection(toroidSource.GetOutputPort())
toroidMapper.SetScalarRange(0, 6.28)
toroidActor = vtk.vtkActor()
toroidActor.SetMapper(toroidMapper)
toroidActor.SetPosition(0, 4, 0)
superToroidTextMapper = vtk.vtkTextMapper()
superToroidTextMapper.SetInput("Super.Toroid")
superToroidTextMapper.GetTextProperty().SetJustificationToCentered()
superToroidTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
superToroidTextMapper.GetTextProperty().SetColor(1, 0, 0)
superToroidTextMapper.GetTextProperty().SetFontSize(14)
superToroidTextActor = vtk.vtkActor2D()
superToroidTextActor.SetMapper(superToroidTextMapper)
superToroidTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
superToroidTextActor.GetPositionCoordinate().SetValue(0, 1.5, 0)
# ------------------------------------------------------------
# Create a super ellipsoid
# ------------------------------------------------------------
superEllipsoid = vtk.vtkParametricSuperEllipsoid()
superEllipsoid.SetXRadius(1.25)
superEllipsoid.SetYRadius(1.5)
superEllipsoid.SetZRadius(1.0)
superEllipsoid.SetN1(1.1)
superEllipsoid.SetN2(1.75)
superEllipsoidSource = vtk.vtkParametricFunctionSource()
superEllipsoidSource.SetParametricFunction(superEllipsoid)
superEllipsoidSource.SetScalarModeToV()
superEllipsoidMapper = vtk.vtkPolyDataMapper()
superEllipsoidMapper.SetInputConnection(superEllipsoidSource.GetOutputPort())
superEllipsoidMapper.SetScalarRange(0, 3.14)
superEllipsoidActor = vtk.vtkActor()
superEllipsoidActor.SetMapper(superEllipsoidMapper)
superEllipsoidActor.SetPosition(8, 4, 0)
superEllipsoidTextMapper = vtk.vtkTextMapper()
superEllipsoidTextMapper.SetInput("Super.Ellipsoid")
superEllipsoidTextMapper.GetTextProperty().SetJustificationToCentered()
superEllipsoidTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
superEllipsoidTextMapper.GetTextProperty().SetColor(1, 0, 0)
superEllipsoidTextMapper.GetTextProperty().SetFontSize(14)
superEllipsoidTextActor = vtk.vtkActor2D()
superEllipsoidTextActor.SetMapper(superEllipsoidTextMapper)
superEllipsoidTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
superEllipsoidTextActor.GetPositionCoordinate().SetValue(8, 1.5, 0)
# ------------------------------------------------------------
# Create an open 1D spline
# ------------------------------------------------------------
splinePoints = [
[0.50380158308139134, -0.60679315105396936, -0.37248976406291578],
[-0.4354646054261665, -0.85362339758017258, -0.84844312996065385],
[0.2163147512899315, -0.39797507012168643, -0.76700353518454523],
[0.97158415334838644, -0.58513467367046257, -0.35846037946569753],
[-0.64359767997804918, -0.94620739107309249, -0.90762176546623086],
[-0.39901219094126117, -0.1978931497772658, 0.0098316934936828471],
[-0.75872745167404765, 0.067719714281950116, 0.165237936733867],
[-0.84599731389712418, -0.67685466896596114, 0.10357868909071133],
[0.84702754758625654, -0.0080077177882230677, -0.58571286666473044],
[-0.076150034124101484, 0.14637647622561856, 0.1494359239700418] ]
inputPoints = vtk.vtkPoints()
for i in range(0, 10):
inputPoints.InsertPoint(i, splinePoints[i])
spline = vtk.vtkParametricSpline()
spline.SetPoints(inputPoints)
spline.ClosedOff()
splineSource = vtk.vtkParametricFunctionSource()
splineSource.SetParametricFunction(spline)
splineMapper = vtk.vtkPolyDataMapper()
splineMapper.SetInputConnection(splineSource.GetOutputPort())
splineActor = vtk.vtkActor()
splineActor.SetMapper(splineMapper)
splineActor.SetPosition(16, 4, 0)
splineActor.GetProperty().SetColor(0, 0, 0)
splineTextMapper = vtk.vtkTextMapper()
splineTextMapper.SetInput("Open.Spline")
splineTextMapper.GetTextProperty().SetJustificationToCentered()
splineTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
splineTextMapper.GetTextProperty().SetColor(1, 0, 0)
splineTextMapper.GetTextProperty().SetFontSize(14)
splineTextActor = vtk.vtkActor2D()
splineTextActor.SetMapper(splineTextMapper)
splineTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
splineTextActor.GetPositionCoordinate().SetValue(16, 1.5, 0)
# ------------------------------------------------------------
# Create a closed 1D spline
# ------------------------------------------------------------
spline2 = vtk.vtkParametricSpline()
spline2.SetPoints(inputPoints)
spline2.ClosedOn()
spline2Source = vtk.vtkParametricFunctionSource()
spline2Source.SetParametricFunction(spline2)
spline2Mapper = vtk.vtkPolyDataMapper()
spline2Mapper.SetInputConnection(spline2Source.GetOutputPort())
spline2Actor = vtk.vtkActor()
spline2Actor.SetMapper(spline2Mapper)
spline2Actor.SetPosition(24, 4, 0)
spline2Actor.GetProperty().SetColor(0, 0, 0)
spline2TextMapper = vtk.vtkTextMapper()
spline2TextMapper.SetInput("Closed.Spline")
spline2TextMapper.GetTextProperty().SetJustificationToCentered()
spline2TextMapper.GetTextProperty().SetVerticalJustificationToCentered()
spline2TextMapper.GetTextProperty().SetColor(1, 0, 0)
spline2TextMapper.GetTextProperty().SetFontSize(14)
spline2TextActor = vtk.vtkActor2D()
spline2TextActor.SetMapper(spline2TextMapper)
spline2TextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
spline2TextActor.GetPositionCoordinate().SetValue(24, 1.5, 0)
# ------------------------------------------------------------
# Create a spiral conic
# ------------------------------------------------------------
sconic = vtk.vtkParametricConicSpiral()
sconic.SetA(0.8)
sconic.SetB(2.5)
sconic.SetC(0.4)
sconicSource = vtk.vtkParametricFunctionSource()
sconicSource.SetParametricFunction(sconic)
sconicSource.SetScalarModeToDistance()
sconicMapper = vtk.vtkPolyDataMapper()
sconicMapper.SetInputConnection(sconicSource.GetOutputPort())
sconicActor = vtk.vtkActor()
sconicActor.SetMapper(sconicMapper)
sconicMapper.SetScalarRange(0, 9)
sconicActor.SetPosition(0, -4, 0)
sconicActor.SetScale(1.2, 1.2, 1.2)
sconicTextMapper = vtk.vtkTextMapper()
sconicTextMapper.SetInput("Spiral.Conic")
sconicTextMapper.GetTextProperty().SetJustificationToCentered()
sconicTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
sconicTextMapper.GetTextProperty().SetColor(1, 0, 0)
sconicTextMapper.GetTextProperty().SetFontSize(14)
sconicTextActor = vtk.vtkActor2D()
sconicTextActor.SetMapper(sconicTextMapper)
sconicTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
sconicTextActor.GetPositionCoordinate().SetValue(0, -6.5, 0)
# ------------------------------------------------------------
# Create Boy's surface
# ------------------------------------------------------------
boy = vtk.vtkParametricBoy()
boySource = vtk.vtkParametricFunctionSource()
boySource.SetParametricFunction(boy)
boySource.SetScalarModeToModulus()
boyMapper = vtk.vtkPolyDataMapper()
boyMapper.SetInputConnection(boySource.GetOutputPort())
boyMapper.SetScalarRange(0, 2)
boyActor = vtk.vtkActor()
boyActor.SetMapper(boyMapper)
boyActor.SetPosition(8, -4, 0)
boyActor.SetScale(1.5, 1.5, 1.5)
boyTextMapper = vtk.vtkTextMapper()
boyTextMapper.SetInput("Boy")
boyTextMapper.GetTextProperty().SetJustificationToCentered()
boyTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
boyTextMapper.GetTextProperty().SetColor(1, 0, 0)
boyTextMapper.GetTextProperty().SetFontSize(14)
boyTextActor = vtk.vtkActor2D()
boyTextActor.SetMapper(boyTextMapper)
boyTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
boyTextActor.GetPositionCoordinate().SetValue(8, -6.5, 0)
# ------------------------------------------------------------
# Create a cross cap
# ------------------------------------------------------------
crossCap = vtk.vtkParametricCrossCap()
crossCapSource = vtk.vtkParametricFunctionSource()
crossCapSource.SetParametricFunction(crossCap)
crossCapSource.SetScalarModeToY()
crossCapMapper = vtk.vtkPolyDataMapper()
crossCapMapper.SetInputConnection(crossCapSource.GetOutputPort())
crossCapActor = vtk.vtkActor()
crossCapActor.SetMapper(crossCapMapper)
crossCapActor.RotateX(65)
crossCapActor.SetPosition(16, -4, 0)
crossCapActor.SetScale(1.5, 1.5, 1.5)
crossCapTextMapper = vtk.vtkTextMapper()
crossCapTextMapper.SetInput("Cross.Cap")
crossCapTextMapper.GetTextProperty().SetJustificationToCentered()
crossCapTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
crossCapTextMapper.GetTextProperty().SetColor(1, 0, 0)
crossCapTextMapper.GetTextProperty().SetFontSize(14)
crossCapTextActor = vtk.vtkActor2D()
crossCapTextActor.SetMapper(crossCapTextMapper)
crossCapTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
crossCapTextActor.GetPositionCoordinate().SetValue(16, -6.5, 0)
# ------------------------------------------------------------
# Create Dini's surface
# ------------------------------------------------------------
dini = vtk.vtkParametricDini()
diniSource = vtk.vtkParametricFunctionSource()
diniSource.SetScalarModeToDistance()
diniSource.SetParametricFunction(dini)
diniMapper = vtk.vtkPolyDataMapper()
diniMapper.SetInputConnection(diniSource.GetOutputPort())
diniActor = vtk.vtkActor()
diniActor.SetMapper(diniMapper)
diniActor.RotateX(-90)
diniActor.SetPosition(24, -3, 0)
diniActor.SetScale(1.5, 1.5, 0.5)
diniTextMapper = vtk.vtkTextMapper()
diniTextMapper.SetInput("Dini")
diniTextMapper.GetTextProperty().SetJustificationToCentered()
diniTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
diniTextMapper.GetTextProperty().SetColor(1, 0, 0)
diniTextMapper.GetTextProperty().SetFontSize(14)
diniTextActor = vtk.vtkActor2D()
diniTextActor.SetMapper(diniTextMapper)
diniTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
diniTextActor.GetPositionCoordinate().SetValue(24, -6.5, 0)
# ------------------------------------------------------------
# Create Enneper's surface
# ------------------------------------------------------------
enneper = vtk.vtkParametricEnneper()
enneperSource = vtk.vtkParametricFunctionSource()
enneperSource.SetParametricFunction(enneper)
enneperSource.SetScalarModeToQuadrant()
enneperMapper = vtk.vtkPolyDataMapper()
enneperMapper.SetInputConnection(enneperSource.GetOutputPort())
enneperMapper.SetScalarRange(1, 4)
enneperActor = vtk.vtkActor()
enneperActor.SetMapper(enneperMapper)
enneperActor.SetPosition(0, -12, 0)
enneperActor.SetScale(0.25, 0.25, 0.25)
enneperTextMapper = vtk.vtkTextMapper()
enneperTextMapper.SetInput("Enneper")
enneperTextMapper.GetTextProperty().SetJustificationToCentered()
enneperTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
enneperTextMapper.GetTextProperty().SetColor(1, 0, 0)
enneperTextMapper.GetTextProperty().SetFontSize(14)
enneperTextActor = vtk.vtkActor2D()
enneperTextActor.SetMapper(enneperTextMapper)
enneperTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
enneperTextActor.GetPositionCoordinate().SetValue(0, -14.5, 0)
# ------------------------------------------------------------
# Create an ellipsoidal surface
# ------------------------------------------------------------
ellipsoid = vtk.vtkParametricEllipsoid()
ellipsoid.SetXRadius(1)
ellipsoid.SetYRadius(0.75)
ellipsoid.SetZRadius(0.5)
ellipsoidSource = vtk.vtkParametricFunctionSource()
ellipsoidSource.SetParametricFunction(ellipsoid)
ellipsoidSource.SetScalarModeToZ()
ellipsoidMapper = vtk.vtkPolyDataMapper()
ellipsoidMapper.SetInputConnection(ellipsoidSource.GetOutputPort())
ellipsoidMapper.SetScalarRange(-0.5, 0.5)
ellipsoidActor = vtk.vtkActor()
ellipsoidActor.SetMapper(ellipsoidMapper)
ellipsoidActor.SetPosition(8, -12, 0)
ellipsoidActor.SetScale(1.5, 1.5, 1.5)
ellipsoidTextMapper = vtk.vtkTextMapper()
ellipsoidTextMapper.SetInput("Ellipsoid")
ellipsoidTextMapper.GetTextProperty().SetJustificationToCentered()
ellipsoidTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
ellipsoidTextMapper.GetTextProperty().SetColor(1, 0, 0)
ellipsoidTextMapper.GetTextProperty().SetFontSize(14)
ellipsoidTextActor = vtk.vtkActor2D()
ellipsoidTextActor.SetMapper(ellipsoidTextMapper)
ellipsoidTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
ellipsoidTextActor.GetPositionCoordinate().SetValue(8, -14.5, 0)
# ------------------------------------------------------------
# Create a surface with random hills on it.
# ------------------------------------------------------------
randomHills = vtk.vtkParametricRandomHills()
randomHills.AllowRandomGenerationOn()
randomHillsSource = vtk.vtkParametricFunctionSource()
randomHillsSource.SetParametricFunction(randomHills)
randomHillsSource.GenerateTextureCoordinatesOn()
randomHillsMapper = vtk.vtkPolyDataMapper()
randomHillsMapper.SetInputConnection(randomHillsSource.GetOutputPort())
randomHillsActor = vtk.vtkActor()
randomHillsActor.SetMapper(randomHillsMapper)
randomHillsActor.SetPosition(16, -14, 0)
randomHillsActor.SetScale(0.2, 0.2, 0.2)
randomHillsActor.SetTexture(texture)
randomHillsTextMapper = vtk.vtkTextMapper()
randomHillsTextMapper.SetInput("Random.Hills")
randomHillsTextMapper.GetTextProperty().SetJustificationToCentered()
randomHillsTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
randomHillsTextMapper.GetTextProperty().SetColor(1, 0, 0)
randomHillsTextMapper.GetTextProperty().SetFontSize(14)
randomHillsTextActor = vtk.vtkActor2D()
randomHillsTextActor.SetMapper(randomHillsTextMapper)
randomHillsTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
randomHillsTextActor.GetPositionCoordinate().SetValue(16, -14.5, 0)
# ------------------------------------------------------------
# Create Steiner's Roman Surface.
# ------------------------------------------------------------
roman = vtk.vtkParametricRoman()
roman.SetRadius(1.5)
romanSource = vtk.vtkParametricFunctionSource()
romanSource.SetParametricFunction(roman)
romanSource.SetScalarModeToX()
romanMapper = vtk.vtkPolyDataMapper()
romanMapper.SetInputConnection(romanSource.GetOutputPort())
romanActor = vtk.vtkActor()
romanActor.SetMapper(romanMapper)
romanActor.SetPosition(24, -12, 0)
romanTextMapper = vtk.vtkTextMapper()
romanTextMapper.SetInput("Roman")
romanTextMapper.GetTextProperty().SetJustificationToCentered()
romanTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
romanTextMapper.GetTextProperty().SetColor(1, 0, 0)
romanTextMapper.GetTextProperty().SetFontSize(14)
romanTextActor = vtk.vtkActor2D()
romanTextActor.SetMapper(romanTextMapper)
romanTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
romanTextActor.GetPositionCoordinate().SetValue(24, -14.5, 0)
# ------------------------------------------------------------
# Create the RenderWindow, Renderer and both Actors
# ------------------------------------------------------------
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
# add actors
ren.AddViewProp(torusActor)
ren.AddViewProp(kleinActor)
ren.AddViewProp(klein2Actor)
ren.AddViewProp(toroidActor)
ren.AddViewProp(superEllipsoidActor)
ren.AddViewProp(mobiusActor)
ren.AddViewProp(splineActor)
ren.AddViewProp(spline2Actor)
ren.AddViewProp(sconicActor)
ren.AddViewProp(boyActor)
ren.AddViewProp(crossCapActor)
ren.AddViewProp(diniActor)
ren.AddViewProp(enneperActor)
ren.AddViewProp(ellipsoidActor)
ren.AddViewProp(randomHillsActor)
ren.AddViewProp(romanActor)
#add text actors
ren.AddViewProp(torusTextActor)
ren.AddViewProp(kleinTextActor)
ren.AddViewProp(fig8KleinTextActor)
ren.AddViewProp(mobiusTextActor)
ren.AddViewProp(superToroidTextActor)
ren.AddViewProp(superEllipsoidTextActor)
ren.AddViewProp(splineTextActor)
ren.AddViewProp(spline2TextActor)
ren.AddViewProp(sconicTextActor)
ren.AddViewProp(boyTextActor)
ren.AddViewProp(crossCapTextActor)
ren.AddViewProp(diniTextActor)
ren.AddViewProp(enneperTextActor)
ren.AddViewProp(ellipsoidTextActor)
ren.AddViewProp(randomHillsTextActor)
ren.AddViewProp(romanTextActor)
ren.SetBackground(0.7, 0.8, 1)
renWin.SetSize(500, 500)
ren.ResetCamera()
ren.GetActiveCamera().Zoom(1.3)
iren.Initialize()
renWin.Render()
img_file = "TestParametricFunctions.png"
# NOTE: this test has a companion .tcl test. The threshold set
# here should be the same as the threshold in the .tcl
# test. Both tests should produce exactly the same results.
vtk.test.Testing.compareImage(iren.GetRenderWindow(), vtk.test.Testing.getAbsImagePath(img_file), threshold=10)
vtk.test.Testing.interact()
ellipsoidTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
ellipsoidTextMapper.GetTextProperty().SetColor(1,0,0)
ellipsoidTextMapper.GetTextProperty().SetFontSize(14)
ellipsoidTextActor = vtk.vtkActor2D()
ellipsoidTextActor.SetMapper(ellipsoidTextMapper)
ellipsoidTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
ellipsoidTextActor.GetPositionCoordinate().SetValue(8,-14.5,0)
# ------------------------------------------------------------
# Create an surface with random hills on it.
# Note that for testing, we will disable the
# random generation of the surfaces. This is
# because random number generators do not
# return the same result on different operating
# systems.
# ------------------------------------------------------------
randomHills = vtk.vtkParametricRandomHills()
randomHills.AllowRandomGenerationOff()
randomHills.GenerateTheHills()
randomHillsSource = vtk.vtkParametricFunctionSource()
randomHillsSource.SetParametricFunction(randomHills)
randomHillsSource.GenerateTextureCoordinatesOn()
randomHillsMapper = vtk.vtkPolyDataMapper()
randomHillsMapper.SetInputConnection(randomHillsSource.GetOutputPort())
randomHillsActor = vtk.vtkActor()
randomHillsActor.SetMapper(randomHillsMapper)
randomHillsActor.SetPosition(16,-14,0)
randomHillsActor.SetScale(0.2,0.2,0.2)
randomHillsActor.SetTexture(texture)
randomHillsTextMapper = vtk.vtkTextMapper()
randomHillsTextMapper.SetInput("Random Hills")
randomHillsTextMapper.GetTextProperty().SetJustificationToCentered()
def testParametricFunctions(self):
# ------------------------------------------------------------
# Get a texture
# ------------------------------------------------------------
textureReader = vtk.vtkJPEGReader()
textureReader.SetFileName(VTK_DATA_ROOT + "/Data/beach.jpg")
texture = vtk.vtkTexture()
texture.SetInputConnection(textureReader.GetOutputPort())
# ------------------------------------------------------------
# For each parametric surface:
# 1) Create it
# 2) Assign mappers and actors
# 3) Position this object
# 5) Add a label
# ------------------------------------------------------------
# ------------------------------------------------------------
# Create a torus
# ------------------------------------------------------------
torus = vtk.vtkParametricTorus()
torusSource = vtk.vtkParametricFunctionSource()
torusSource.SetParametricFunction(torus)
torusSource.SetScalarModeToPhase()
torusMapper = vtk.vtkPolyDataMapper()
torusMapper.SetInputConnection(torusSource.GetOutputPort())
torusMapper.SetScalarRange(0, 360)
torusActor = vtk.vtkActor()
torusActor.SetMapper(torusMapper)
torusActor.SetPosition(0, 12, 0)
torusTextMapper = vtk.vtkTextMapper()
torusTextMapper.SetInput("Torus")
torusTextMapper.GetTextProperty().SetJustificationToCentered()
torusTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
torusTextMapper.GetTextProperty().SetColor(1, 0, 0)
torusTextMapper.GetTextProperty().SetFontSize(14)
torusTextActor = vtk.vtkActor2D()
torusTextActor.SetMapper(torusTextMapper)
torusTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
torusTextActor.GetPositionCoordinate().SetValue(0, 9.5, 0)
# ------------------------------------------------------------
# Create a klein bottle
# ------------------------------------------------------------
klein = vtk.vtkParametricKlein()
kleinSource = vtk.vtkParametricFunctionSource()
kleinSource.SetParametricFunction(klein)
kleinSource.SetScalarModeToU0V0()
kleinMapper = vtk.vtkPolyDataMapper()
kleinMapper.SetInputConnection(kleinSource.GetOutputPort())
kleinMapper.SetScalarRange(0, 3)
kleinActor = vtk.vtkActor()
kleinActor.SetMapper(kleinMapper)
kleinActor.SetPosition(8, 10.5, 0)
kleinTextMapper = vtk.vtkTextMapper()
kleinTextMapper.SetInput("Klein")
kleinTextMapper.GetTextProperty().SetJustificationToCentered()
kleinTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
kleinTextMapper.GetTextProperty().SetColor(1, 0, 0)
kleinTextMapper.GetTextProperty().SetFontSize(14)
kleinTextActor = vtk.vtkActor2D()
kleinTextActor.SetMapper(kleinTextMapper)
kleinTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
kleinTextActor.GetPositionCoordinate().SetValue(8, 9.5, 0)
# ------------------------------------------------------------
# Create a Figure-8 Klein
# ------------------------------------------------------------
klein2 = vtk.vtkParametricFigure8Klein()
klein2Source = vtk.vtkParametricFunctionSource()
klein2Source.SetParametricFunction(klein2)
klein2Source.GenerateTextureCoordinatesOn()
klein2Mapper = vtk.vtkPolyDataMapper()
klein2Mapper.SetInputConnection(klein2Source.GetOutputPort())
klein2Mapper.SetScalarRange(0, 3)
klein2Actor = vtk.vtkActor()
klein2Actor.SetMapper(klein2Mapper)
klein2Actor.SetPosition(16, 12, 0)
klein2Actor.SetTexture(texture)
fig8KleinTextMapper = vtk.vtkTextMapper()
fig8KleinTextMapper.SetInput("Fig-8.Klein")
fig8KleinTextMapper.GetTextProperty().SetJustificationToCentered()
fig8KleinTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
fig8KleinTextMapper.GetTextProperty().SetColor(1, 0, 0)
fig8KleinTextMapper.GetTextProperty().SetFontSize(14)
fig8KleinTextActor = vtk.vtkActor2D()
fig8KleinTextActor.SetMapper(fig8KleinTextMapper)
fig8KleinTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
fig8KleinTextActor.GetPositionCoordinate().SetValue(16, 9.5, 0)
# ------------------------------------------------------------
# Create a mobius strip
# ------------------------------------------------------------
mobius = vtk.vtkParametricMobius()
mobiusSource = vtk.vtkParametricFunctionSource()
mobiusSource.SetParametricFunction(mobius)
mobiusSource.GenerateTextureCoordinatesOn()
mobiusMapper = vtk.vtkPolyDataMapper()
mobiusMapper.SetInputConnection(mobiusSource.GetOutputPort())
mobiusActor = vtk.vtkActor()
mobiusActor.SetMapper(mobiusMapper)
mobiusActor.RotateX(45)
mobiusActor.SetPosition(24, 12, 0)
mobiusActor.SetTexture(texture)
mobiusTextMapper = vtk.vtkTextMapper()
mobiusTextMapper.SetInput("Mobius")
mobiusTextMapper.GetTextProperty().SetJustificationToCentered()
mobiusTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
mobiusTextMapper.GetTextProperty().SetColor(1, 0, 0)
mobiusTextMapper.GetTextProperty().SetFontSize(14)
mobiusTextActor = vtk.vtkActor2D()
mobiusTextActor.SetMapper(mobiusTextMapper)
mobiusTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
mobiusTextActor.GetPositionCoordinate().SetValue(24, 9.5, 0)
# ------------------------------------------------------------
# Create a super toroid
# ------------------------------------------------------------
toroid = vtk.vtkParametricSuperToroid()
toroid.SetN1(2)
toroid.SetN2(3)
toroidSource = vtk.vtkParametricFunctionSource()
toroidSource.SetParametricFunction(toroid)
toroidSource.SetScalarModeToU()
toroidMapper = vtk.vtkPolyDataMapper()
toroidMapper.SetInputConnection(toroidSource.GetOutputPort())
toroidMapper.SetScalarRange(0, 6.28)
toroidActor = vtk.vtkActor()
toroidActor.SetMapper(toroidMapper)
toroidActor.SetPosition(0, 4, 0)
superToroidTextMapper = vtk.vtkTextMapper()
superToroidTextMapper.SetInput("Super.Toroid")
superToroidTextMapper.GetTextProperty().SetJustificationToCentered()
superToroidTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
superToroidTextMapper.GetTextProperty().SetColor(1, 0, 0)
superToroidTextMapper.GetTextProperty().SetFontSize(14)
superToroidTextActor = vtk.vtkActor2D()
superToroidTextActor.SetMapper(superToroidTextMapper)
superToroidTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
superToroidTextActor.GetPositionCoordinate().SetValue(0, 1.5, 0)
# ------------------------------------------------------------
# Create a super ellipsoid
# ------------------------------------------------------------
superEllipsoid = vtk.vtkParametricSuperEllipsoid()
superEllipsoid.SetXRadius(1.25)
superEllipsoid.SetYRadius(1.5)
superEllipsoid.SetZRadius(1.0)
superEllipsoid.SetN1(1.1)
superEllipsoid.SetN2(1.75)
superEllipsoidSource = vtk.vtkParametricFunctionSource()
superEllipsoidSource.SetParametricFunction(superEllipsoid)
superEllipsoidSource.SetScalarModeToV()
superEllipsoidMapper = vtk.vtkPolyDataMapper()
superEllipsoidMapper.SetInputConnection(superEllipsoidSource.GetOutputPort())
superEllipsoidMapper.SetScalarRange(0, 3.14)
superEllipsoidActor = vtk.vtkActor()
superEllipsoidActor.SetMapper(superEllipsoidMapper)
superEllipsoidActor.SetPosition(8, 4, 0)
superEllipsoidTextMapper = vtk.vtkTextMapper()
superEllipsoidTextMapper.SetInput("Super.Ellipsoid")
superEllipsoidTextMapper.GetTextProperty().SetJustificationToCentered()
superEllipsoidTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
superEllipsoidTextMapper.GetTextProperty().SetColor(1, 0, 0)
superEllipsoidTextMapper.GetTextProperty().SetFontSize(14)
superEllipsoidTextActor = vtk.vtkActor2D()
superEllipsoidTextActor.SetMapper(superEllipsoidTextMapper)
superEllipsoidTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
superEllipsoidTextActor.GetPositionCoordinate().SetValue(8, 1.5, 0)
# ------------------------------------------------------------
# Create an open 1D spline
# ------------------------------------------------------------
math = vtk.vtkMath()
inputPoints = vtk.vtkPoints()
for i in range(0, 10):
x = math.Random(-1, 1)
y = math.Random(-1, 1)
z = math.Random(-1, 1)
inputPoints.InsertPoint(i,x,y,z)
spline = vtk.vtkParametricSpline()
spline.SetPoints(inputPoints)
spline.ClosedOff()
splineSource = vtk.vtkParametricFunctionSource()
splineSource.SetParametricFunction(spline)
splineMapper = vtk.vtkPolyDataMapper()
splineMapper.SetInputConnection(splineSource.GetOutputPort())
splineActor = vtk.vtkActor()
splineActor.SetMapper(splineMapper)
splineActor.SetPosition(16, 4, 0)
splineActor.GetProperty().SetColor(0, 0, 0)
splineTextMapper = vtk.vtkTextMapper()
splineTextMapper.SetInput("Open.Spline")
splineTextMapper.GetTextProperty().SetJustificationToCentered()
splineTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
splineTextMapper.GetTextProperty().SetColor(1, 0, 0)
splineTextMapper.GetTextProperty().SetFontSize(14)
splineTextActor = vtk.vtkActor2D()
splineTextActor.SetMapper(splineTextMapper)
splineTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
splineTextActor.GetPositionCoordinate().SetValue(16, 1.5, 0)
# ------------------------------------------------------------
# Create a closed 1D spline
# ------------------------------------------------------------
spline2 = vtk.vtkParametricSpline()
spline2.SetPoints(inputPoints)
spline2.ClosedOn()
spline2Source = vtk.vtkParametricFunctionSource()
spline2Source.SetParametricFunction(spline2)
spline2Mapper = vtk.vtkPolyDataMapper()
spline2Mapper.SetInputConnection(spline2Source.GetOutputPort())
spline2Actor = vtk.vtkActor()
spline2Actor.SetMapper(spline2Mapper)
spline2Actor.SetPosition(24, 4, 0)
spline2Actor.GetProperty().SetColor(0, 0, 0)
spline2TextMapper = vtk.vtkTextMapper()
spline2TextMapper.SetInput("Closed.Spline")
spline2TextMapper.GetTextProperty().SetJustificationToCentered()
spline2TextMapper.GetTextProperty().SetVerticalJustificationToCentered()
spline2TextMapper.GetTextProperty().SetColor(1, 0, 0)
spline2TextMapper.GetTextProperty().SetFontSize(14)
spline2TextActor = vtk.vtkActor2D()
spline2TextActor.SetMapper(spline2TextMapper)
spline2TextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
spline2TextActor.GetPositionCoordinate().SetValue(24, 1.5, 0)
# ------------------------------------------------------------
# Create a spiral conic
# ------------------------------------------------------------
sconic = vtk.vtkParametricConicSpiral()
sconic.SetA(0.8)
sconic.SetB(2.5)
sconic.SetC(0.4)
sconicSource = vtk.vtkParametricFunctionSource()
sconicSource.SetParametricFunction(sconic)
sconicSource.SetScalarModeToDistance()
sconicMapper = vtk.vtkPolyDataMapper()
sconicMapper.SetInputConnection(sconicSource.GetOutputPort())
sconicActor = vtk.vtkActor()
sconicActor.SetMapper(sconicMapper)
sconicMapper.SetScalarRange(0, 9)
sconicActor.SetPosition(0, -4, 0)
sconicActor.SetScale(1.2, 1.2, 1.2)
sconicTextMapper = vtk.vtkTextMapper()
sconicTextMapper.SetInput("Spiral.Conic")
sconicTextMapper.GetTextProperty().SetJustificationToCentered()
sconicTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
sconicTextMapper.GetTextProperty().SetColor(1, 0, 0)
sconicTextMapper.GetTextProperty().SetFontSize(14)
sconicTextActor = vtk.vtkActor2D()
sconicTextActor.SetMapper(sconicTextMapper)
sconicTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
sconicTextActor.GetPositionCoordinate().SetValue(0, -6.5, 0)
# ------------------------------------------------------------
# Create Boy's surface
# ------------------------------------------------------------
boy = vtk.vtkParametricBoy()
boySource = vtk.vtkParametricFunctionSource()
boySource.SetParametricFunction(boy)
boySource.SetScalarModeToModulus()
boyMapper = vtk.vtkPolyDataMapper()
boyMapper.SetInputConnection(boySource.GetOutputPort())
boyMapper.SetScalarRange(0, 2)
boyActor = vtk.vtkActor()
boyActor.SetMapper(boyMapper)
boyActor.SetPosition(8, -4, 0)
boyActor.SetScale(1.5, 1.5, 1.5)
boyTextMapper = vtk.vtkTextMapper()
boyTextMapper.SetInput("Boy")
boyTextMapper.GetTextProperty().SetJustificationToCentered()
boyTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
boyTextMapper.GetTextProperty().SetColor(1, 0, 0)
boyTextMapper.GetTextProperty().SetFontSize(14)
boyTextActor = vtk.vtkActor2D()
boyTextActor.SetMapper(boyTextMapper)
boyTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
boyTextActor.GetPositionCoordinate().SetValue(8, -6.5, 0)
# ------------------------------------------------------------
# Create a cross cap
# ------------------------------------------------------------
crossCap = vtk.vtkParametricCrossCap()
crossCapSource = vtk.vtkParametricFunctionSource()
crossCapSource.SetParametricFunction(crossCap)
crossCapSource.SetScalarModeToY()
crossCapMapper = vtk.vtkPolyDataMapper()
crossCapMapper.SetInputConnection(crossCapSource.GetOutputPort())
crossCapActor = vtk.vtkActor()
crossCapActor.SetMapper(crossCapMapper)
crossCapActor.RotateX(65)
crossCapActor.SetPosition(16, -4, 0)
crossCapActor.SetScale(1.5, 1.5, 1.5)
crossCapTextMapper = vtk.vtkTextMapper()
crossCapTextMapper.SetInput("Cross.Cap")
crossCapTextMapper.GetTextProperty().SetJustificationToCentered()
crossCapTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
crossCapTextMapper.GetTextProperty().SetColor(1, 0, 0)
crossCapTextMapper.GetTextProperty().SetFontSize(14)
crossCapTextActor = vtk.vtkActor2D()
crossCapTextActor.SetMapper(crossCapTextMapper)
crossCapTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
crossCapTextActor.GetPositionCoordinate().SetValue(16, -6.5, 0)
# ------------------------------------------------------------
# Create Dini's surface
# ------------------------------------------------------------
dini = vtk.vtkParametricDini()
diniSource = vtk.vtkParametricFunctionSource()
diniSource.SetScalarModeToDistance()
diniSource.SetParametricFunction(dini)
diniMapper = vtk.vtkPolyDataMapper()
diniMapper.SetInputConnection(diniSource.GetOutputPort())
diniActor = vtk.vtkActor()
diniActor.SetMapper(diniMapper)
diniActor.RotateX(-90)
diniActor.SetPosition(24, -3, 0)
diniActor.SetScale(1.5, 1.5, 0.5)
diniTextMapper = vtk.vtkTextMapper()
diniTextMapper.SetInput("Dini")
diniTextMapper.GetTextProperty().SetJustificationToCentered()
diniTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
diniTextMapper.GetTextProperty().SetColor(1, 0, 0)
diniTextMapper.GetTextProperty().SetFontSize(14)
diniTextActor = vtk.vtkActor2D()
diniTextActor.SetMapper(diniTextMapper)
diniTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
diniTextActor.GetPositionCoordinate().SetValue(24, -6.5, 0)
# ------------------------------------------------------------
# Create Enneper's surface
# ------------------------------------------------------------
enneper = vtk.vtkParametricEnneper()
enneperSource = vtk.vtkParametricFunctionSource()
enneperSource.SetParametricFunction(enneper)
enneperSource.SetScalarModeToQuadrant()
enneperMapper = vtk.vtkPolyDataMapper()
enneperMapper.SetInputConnection(enneperSource.GetOutputPort())
enneperMapper.SetScalarRange(1, 4)
enneperActor = vtk.vtkActor()
enneperActor.SetMapper(enneperMapper)
enneperActor.SetPosition(0, -12, 0)
enneperActor.SetScale(0.25, 0.25, 0.25)
enneperTextMapper = vtk.vtkTextMapper()
enneperTextMapper.SetInput("Enneper")
enneperTextMapper.GetTextProperty().SetJustificationToCentered()
enneperTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
enneperTextMapper.GetTextProperty().SetColor(1, 0, 0)
enneperTextMapper.GetTextProperty().SetFontSize(14)
enneperTextActor = vtk.vtkActor2D()
enneperTextActor.SetMapper(enneperTextMapper)
enneperTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
enneperTextActor.GetPositionCoordinate().SetValue(0, -14.5, 0)
# ------------------------------------------------------------
# Create an ellipsoidal surface
# ------------------------------------------------------------
ellipsoid = vtk.vtkParametricEllipsoid()
ellipsoid.SetXRadius(1)
ellipsoid.SetYRadius(0.75)
ellipsoid.SetZRadius(0.5)
ellipsoidSource = vtk.vtkParametricFunctionSource()
ellipsoidSource.SetParametricFunction(ellipsoid)
ellipsoidSource.SetScalarModeToZ()
ellipsoidMapper = vtk.vtkPolyDataMapper()
ellipsoidMapper.SetInputConnection(ellipsoidSource.GetOutputPort())
ellipsoidMapper.SetScalarRange(-0.5, 0.5)
ellipsoidActor = vtk.vtkActor()
ellipsoidActor.SetMapper(ellipsoidMapper)
ellipsoidActor.SetPosition(8, -12, 0)
ellipsoidActor.SetScale(1.5, 1.5, 1.5)
ellipsoidTextMapper = vtk.vtkTextMapper()
ellipsoidTextMapper.SetInput("Ellipsoid")
ellipsoidTextMapper.GetTextProperty().SetJustificationToCentered()
ellipsoidTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
ellipsoidTextMapper.GetTextProperty().SetColor(1, 0, 0)
ellipsoidTextMapper.GetTextProperty().SetFontSize(14)
ellipsoidTextActor = vtk.vtkActor2D()
ellipsoidTextActor.SetMapper(ellipsoidTextMapper)
ellipsoidTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
ellipsoidTextActor.GetPositionCoordinate().SetValue(8, -14.5, 0)
# ------------------------------------------------------------
# Create an surface with random hills on it.
# Note that for testing, we will disable the
# random generation of the surfaces. This is
# because random number generators do not
# return the same result on different operating
# systems.
# ------------------------------------------------------------
randomHills = vtk.vtkParametricRandomHills()
randomHills.AllowRandomGenerationOff()
randomHills.GenerateTheHills()
randomHillsSource = vtk.vtkParametricFunctionSource()
randomHillsSource.SetParametricFunction(randomHills)
randomHillsSource.GenerateTextureCoordinatesOn()
randomHillsMapper = vtk.vtkPolyDataMapper()
randomHillsMapper.SetInputConnection(randomHillsSource.GetOutputPort())
randomHillsActor = vtk.vtkActor()
randomHillsActor.SetMapper(randomHillsMapper)
randomHillsActor.SetPosition(16, -14, 0)
randomHillsActor.SetScale(0.2, 0.2, 0.2)
randomHillsActor.SetTexture(texture)
randomHillsTextMapper = vtk.vtkTextMapper()
randomHillsTextMapper.SetInput("Random.Hills")
randomHillsTextMapper.GetTextProperty().SetJustificationToCentered()
randomHillsTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
randomHillsTextMapper.GetTextProperty().SetColor(1, 0, 0)
randomHillsTextMapper.GetTextProperty().SetFontSize(14)
randomHillsTextActor = vtk.vtkActor2D()
randomHillsTextActor.SetMapper(randomHillsTextMapper)
randomHillsTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
randomHillsTextActor.GetPositionCoordinate().SetValue(16, -14.5, 0)
# ------------------------------------------------------------
# Create an Steiner's Roman Surface.
# ------------------------------------------------------------
roman = vtk.vtkParametricRoman()
roman.SetRadius(1.5)
romanSource = vtk.vtkParametricFunctionSource()
romanSource.SetParametricFunction(roman)
romanSource.SetScalarModeToX()
romanMapper = vtk.vtkPolyDataMapper()
romanMapper.SetInputConnection(romanSource.GetOutputPort())
romanActor = vtk.vtkActor()
romanActor.SetMapper(romanMapper)
romanActor.SetPosition(24, -12, 0)
romanTextMapper = vtk.vtkTextMapper()
romanTextMapper.SetInput("Roman")
romanTextMapper.GetTextProperty().SetJustificationToCentered()
romanTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
romanTextMapper.GetTextProperty().SetColor(1, 0, 0)
romanTextMapper.GetTextProperty().SetFontSize(14)
romanTextActor = vtk.vtkActor2D()
romanTextActor.SetMapper(romanTextMapper)
romanTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
romanTextActor.GetPositionCoordinate().SetValue(24, -14.5, 0)
# ------------------------------------------------------------
# Create the RenderWindow, Renderer and both Actors
# ------------------------------------------------------------
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
# add actors
ren.AddViewProp(torusActor)
ren.AddViewProp(kleinActor)
ren.AddViewProp(klein2Actor)
ren.AddViewProp(toroidActor)
ren.AddViewProp(superEllipsoidActor)
ren.AddViewProp(mobiusActor)
ren.AddViewProp(splineActor)
ren.AddViewProp(spline2Actor)
ren.AddViewProp(sconicActor)
ren.AddViewProp(boyActor)
ren.AddViewProp(crossCapActor)
ren.AddViewProp(diniActor)
ren.AddViewProp(enneperActor)
ren.AddViewProp(ellipsoidActor)
ren.AddViewProp(randomHillsActor)
ren.AddViewProp(romanActor)
#add text actors
ren.AddViewProp(torusTextActor)
ren.AddViewProp(kleinTextActor)
ren.AddViewProp(fig8KleinTextActor)
ren.AddViewProp(mobiusTextActor)
ren.AddViewProp(superToroidTextActor)
ren.AddViewProp(superEllipsoidTextActor)
ren.AddViewProp(splineTextActor)
ren.AddViewProp(spline2TextActor)
ren.AddViewProp(sconicTextActor)
ren.AddViewProp(boyTextActor)
ren.AddViewProp(crossCapTextActor)
ren.AddViewProp(diniTextActor)
ren.AddViewProp(enneperTextActor)
ren.AddViewProp(ellipsoidTextActor)
ren.AddViewProp(randomHillsTextActor)
ren.AddViewProp(romanTextActor)
ren.SetBackground(0.7, 0.8, 1)
renWin.SetSize(500, 500)
ren.ResetCamera()
ren.GetActiveCamera().Zoom(1.3)
iren.Initialize()
renWin.Render()
#iren.Start()
img_file = "TestParametricFunctions.png"
vtk.test.Testing.compareImage(iren.GetRenderWindow(),vtk.test.Testing.getAbsImagePath(img_file),threshold=25)
vtk.test.Testing.interact()
def get_parametric_functions():
"""
Create a map of the parametric functions and set some parameters.
The first key groups the parametric functions and the
second key is the name of the function.
:return: The map of functions.
"""
# We could use OrderedDict if Python version >= 3.2
pfn = collections.defaultdict(collections.defaultdict)
pfn[0]['Boy'] = vtk.vtkParametricBoy()
pfn[0]['ConicSpiral'] = vtk.vtkParametricConicSpiral()
pfn[0]['CrossCap'] = vtk.vtkParametricCrossCap()
pfn[0]['Dini'] = vtk.vtkParametricDini()
pfn[0]['Ellipsoid'] = vtk.vtkParametricEllipsoid()
pfn[0]['Enneper'] = vtk.vtkParametricEnneper()
pfn[0]['Figure8Klein'] = vtk.vtkParametricFigure8Klein()
pfn[0]['Klein'] = vtk.vtkParametricKlein()
pfn[0]['Mobius'] = vtk.vtkParametricMobius()
pfn[0]['RandomHills'] = vtk.vtkParametricRandomHills()
pfn[0]['Roman'] = vtk.vtkParametricRoman()
pfn[0]['SuperEllipsoid'] = vtk.vtkParametricSuperEllipsoid()
pfn[0]['SuperToroid'] = vtk.vtkParametricSuperToroid()
pfn[0]['Torus'] = vtk.vtkParametricTorus()
pfn[0]['Spline'] = vtk.vtkParametricSpline()
# Extra parametric surfaces.
pfn[1]['BohemianDome'] = vtk.vtkParametricBohemianDome()
pfn[1]['Bour'] = vtk.vtkParametricBour()
pfn[1]['CatalanMinimal'] = vtk.vtkParametricCatalanMinimal()
pfn[1]['Henneberg'] = vtk.vtkParametricHenneberg()
pfn[1]['Kuen'] = vtk.vtkParametricKuen()
pfn[1]['PluckerConoid'] = vtk.vtkParametricPluckerConoid()
pfn[1]['Pseudosphere'] = vtk.vtkParametricPseudosphere()
# Now set some parameters.
pfn[0]["Ellipsoid"].SetXRadius(0.5)
pfn[0]["Ellipsoid"].SetYRadius(2.0)
pfn[0]["Mobius"].SetRadius(2.0)
pfn[0]["Mobius"].SetMinimumV(-0.5)
pfn[0]["Mobius"].SetMaximumV(0.5)
pfn[0]["RandomHills"].AllowRandomGenerationOn()
pfn[0]["RandomHills"].SetRandomSeed(1)
pfn[0]["RandomHills"].SetNumberOfHills(30)
pfn[0]["SuperEllipsoid"].SetN1(0.5)
pfn[0]["SuperEllipsoid"].SetN2(0.4)
pfn[0]["SuperToroid"].SetN1(0.5)
pfn[0]["SuperToroid"].SetN2(3.0)
# The spline needs points
inputPoints = vtk.vtkPoints()
rng = vtk.vtkMinimalStandardRandomSequence()
rng.SetSeed(8775070)
for p in range(0, 10):
xyz = [None] * 3
for idx in range(0, len(xyz)):
xyz[idx] = rng.GetRangeValue(-1.0, 1.0)
rng.Next()
inputPoints.InsertNextPoint(xyz)
pfn[0]["Spline"].SetPoints(inputPoints)
# Extra parametric surfaces.
pfn[1]["BohemianDome"].SetA(5.0)
pfn[1]["BohemianDome"].SetB(1.0)
pfn[1]["BohemianDome"].SetC(2.0)
pfn[1]["Kuen"].SetDeltaV0(0.001)
return pfn
def testParametricFunctions(self):
# ------------------------------------------------------------
# Get a texture
# ------------------------------------------------------------
textureReader = vtk.vtkJPEGReader()
textureReader.SetFileName(VTK_DATA_ROOT + "/Data/beach.jpg")
texture = vtk.vtkTexture()
texture.SetInputConnection(textureReader.GetOutputPort())
# ------------------------------------------------------------
# For each parametric surface:
# 1) Create it
# 2) Assign mappers and actors
# 3) Position this object
# 5) Add a label
# ------------------------------------------------------------
# ------------------------------------------------------------
# Create a torus
# ------------------------------------------------------------
torus = vtk.vtkParametricTorus()
torusSource = vtk.vtkParametricFunctionSource()
torusSource.SetParametricFunction(torus)
torusSource.SetScalarModeToPhase()
torusMapper = vtk.vtkPolyDataMapper()
torusMapper.SetInputConnection(torusSource.GetOutputPort())
torusMapper.SetScalarRange(0, 360)
torusActor = vtk.vtkActor()
torusActor.SetMapper(torusMapper)
torusActor.SetPosition(0, 12, 0)
torusTextMapper = vtk.vtkTextMapper()
torusTextMapper.SetInput("Torus")
torusTextMapper.GetTextProperty().SetJustificationToCentered()
torusTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
torusTextMapper.GetTextProperty().SetColor(1, 0, 0)
torusTextMapper.GetTextProperty().SetFontSize(14)
torusTextActor = vtk.vtkActor2D()
torusTextActor.SetMapper(torusTextMapper)
torusTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
torusTextActor.GetPositionCoordinate().SetValue(0, 9.5, 0)
# ------------------------------------------------------------
# Create a klein bottle
# ------------------------------------------------------------
klein = vtk.vtkParametricKlein()
kleinSource = vtk.vtkParametricFunctionSource()
kleinSource.SetParametricFunction(klein)
kleinSource.SetScalarModeToU0V0()
kleinMapper = vtk.vtkPolyDataMapper()
kleinMapper.SetInputConnection(kleinSource.GetOutputPort())
kleinMapper.SetScalarRange(0, 3)
kleinActor = vtk.vtkActor()
kleinActor.SetMapper(kleinMapper)
kleinActor.SetPosition(8, 10.5, 0)
kleinTextMapper = vtk.vtkTextMapper()
kleinTextMapper.SetInput("Klein")
kleinTextMapper.GetTextProperty().SetJustificationToCentered()
kleinTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
kleinTextMapper.GetTextProperty().SetColor(1, 0, 0)
kleinTextMapper.GetTextProperty().SetFontSize(14)
kleinTextActor = vtk.vtkActor2D()
kleinTextActor.SetMapper(kleinTextMapper)
kleinTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
kleinTextActor.GetPositionCoordinate().SetValue(8, 9.5, 0)
# ------------------------------------------------------------
# Create a Figure-8 Klein
# ------------------------------------------------------------
klein2 = vtk.vtkParametricFigure8Klein()
klein2Source = vtk.vtkParametricFunctionSource()
klein2Source.SetParametricFunction(klein2)
klein2Source.GenerateTextureCoordinatesOn()
klein2Mapper = vtk.vtkPolyDataMapper()
klein2Mapper.SetInputConnection(klein2Source.GetOutputPort())
klein2Mapper.SetScalarRange(0, 3)
klein2Actor = vtk.vtkActor()
klein2Actor.SetMapper(klein2Mapper)
klein2Actor.SetPosition(16, 12, 0)
klein2Actor.SetTexture(texture)
fig8KleinTextMapper = vtk.vtkTextMapper()
fig8KleinTextMapper.SetInput("Fig-8.Klein")
fig8KleinTextMapper.GetTextProperty().SetJustificationToCentered()
fig8KleinTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
fig8KleinTextMapper.GetTextProperty().SetColor(1, 0, 0)
fig8KleinTextMapper.GetTextProperty().SetFontSize(14)
fig8KleinTextActor = vtk.vtkActor2D()
fig8KleinTextActor.SetMapper(fig8KleinTextMapper)
fig8KleinTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
fig8KleinTextActor.GetPositionCoordinate().SetValue(16, 9.5, 0)
# ------------------------------------------------------------
# Create a mobius strip
# ------------------------------------------------------------
mobius = vtk.vtkParametricMobius()
mobiusSource = vtk.vtkParametricFunctionSource()
mobiusSource.SetParametricFunction(mobius)
mobiusSource.GenerateTextureCoordinatesOn()
mobiusMapper = vtk.vtkPolyDataMapper()
mobiusMapper.SetInputConnection(mobiusSource.GetOutputPort())
mobiusActor = vtk.vtkActor()
mobiusActor.SetMapper(mobiusMapper)
mobiusActor.RotateX(45)
mobiusActor.SetPosition(24, 12, 0)
mobiusActor.SetTexture(texture)
mobiusTextMapper = vtk.vtkTextMapper()
mobiusTextMapper.SetInput("Mobius")
mobiusTextMapper.GetTextProperty().SetJustificationToCentered()
mobiusTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
mobiusTextMapper.GetTextProperty().SetColor(1, 0, 0)
mobiusTextMapper.GetTextProperty().SetFontSize(14)
mobiusTextActor = vtk.vtkActor2D()
mobiusTextActor.SetMapper(mobiusTextMapper)
mobiusTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
mobiusTextActor.GetPositionCoordinate().SetValue(24, 9.5, 0)
# ------------------------------------------------------------
# Create a super toroid
# ------------------------------------------------------------
toroid = vtk.vtkParametricSuperToroid()
toroid.SetN1(2)
toroid.SetN2(3)
toroidSource = vtk.vtkParametricFunctionSource()
toroidSource.SetParametricFunction(toroid)
toroidSource.SetScalarModeToU()
toroidMapper = vtk.vtkPolyDataMapper()
toroidMapper.SetInputConnection(toroidSource.GetOutputPort())
toroidMapper.SetScalarRange(0, 6.28)
toroidActor = vtk.vtkActor()
toroidActor.SetMapper(toroidMapper)
toroidActor.SetPosition(0, 4, 0)
superToroidTextMapper = vtk.vtkTextMapper()
superToroidTextMapper.SetInput("Super.Toroid")
superToroidTextMapper.GetTextProperty().SetJustificationToCentered()
superToroidTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
superToroidTextMapper.GetTextProperty().SetColor(1, 0, 0)
superToroidTextMapper.GetTextProperty().SetFontSize(14)
superToroidTextActor = vtk.vtkActor2D()
superToroidTextActor.SetMapper(superToroidTextMapper)
superToroidTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
superToroidTextActor.GetPositionCoordinate().SetValue(0, 1.5, 0)
# ------------------------------------------------------------
# Create a super ellipsoid
# ------------------------------------------------------------
superEllipsoid = vtk.vtkParametricSuperEllipsoid()
superEllipsoid.SetXRadius(1.25)
superEllipsoid.SetYRadius(1.5)
superEllipsoid.SetZRadius(1.0)
superEllipsoid.SetN1(1.1)
superEllipsoid.SetN2(1.75)
superEllipsoidSource = vtk.vtkParametricFunctionSource()
superEllipsoidSource.SetParametricFunction(superEllipsoid)
superEllipsoidSource.SetScalarModeToV()
superEllipsoidMapper = vtk.vtkPolyDataMapper()
superEllipsoidMapper.SetInputConnection(superEllipsoidSource.GetOutputPort())
superEllipsoidMapper.SetScalarRange(0, 3.14)
superEllipsoidActor = vtk.vtkActor()
superEllipsoidActor.SetMapper(superEllipsoidMapper)
superEllipsoidActor.SetPosition(8, 4, 0)
superEllipsoidTextMapper = vtk.vtkTextMapper()
superEllipsoidTextMapper.SetInput("Super.Ellipsoid")
superEllipsoidTextMapper.GetTextProperty().SetJustificationToCentered()
superEllipsoidTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
superEllipsoidTextMapper.GetTextProperty().SetColor(1, 0, 0)
superEllipsoidTextMapper.GetTextProperty().SetFontSize(14)
superEllipsoidTextActor = vtk.vtkActor2D()
superEllipsoidTextActor.SetMapper(superEllipsoidTextMapper)
superEllipsoidTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
superEllipsoidTextActor.GetPositionCoordinate().SetValue(8, 1.5, 0)
# ------------------------------------------------------------
# Create an open 1D spline
# ------------------------------------------------------------
splinePoints = [[ -0.981576726763 , 0.639953289013 , -0.305071552892 ],
[ 0.6624105478 , -0.865923131754 , 0.429924616325 ],
[ -0.2569734311 , -0.952456491977 , 0.0637393393851 ],
[ -0.732922955292 , -0.236109588871 , -0.293860152035 ],
[ -0.907575251492 , 0.382748181644 , 0.848688894812 ],
[ -0.0857448890273 , 0.885650117828 , -0.878469658959 ],
[ -0.439558122977 , 0.346627118693 , -0.238016126323 ],
[ -0.337035103392 , -0.548982715024 , -0.752491410706 ],
[ 0.876860257181 , -0.609657562156 , -0.514647156705 ],
[ 0.325237251504 , 0.26248602721 , -0.397340677398 ]]
inputPoints = vtk.vtkPoints()
for i in range(0, 10):
inputPoints.InsertPoint(i, splinePoints[i])
spline = vtk.vtkParametricSpline()
spline.SetPoints(inputPoints)
spline.ClosedOff()
splineSource = vtk.vtkParametricFunctionSource()
splineSource.SetParametricFunction(spline)
splineMapper = vtk.vtkPolyDataMapper()
splineMapper.SetInputConnection(splineSource.GetOutputPort())
splineActor = vtk.vtkActor()
splineActor.SetMapper(splineMapper)
splineActor.SetPosition(16, 4, 0)
splineActor.GetProperty().SetColor(0, 0, 0)
splineTextMapper = vtk.vtkTextMapper()
splineTextMapper.SetInput("Open.Spline")
splineTextMapper.GetTextProperty().SetJustificationToCentered()
splineTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
splineTextMapper.GetTextProperty().SetColor(1, 0, 0)
splineTextMapper.GetTextProperty().SetFontSize(14)
splineTextActor = vtk.vtkActor2D()
splineTextActor.SetMapper(splineTextMapper)
splineTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
splineTextActor.GetPositionCoordinate().SetValue(16, 1.5, 0)
# ------------------------------------------------------------
# Create a closed 1D spline
# ------------------------------------------------------------
spline2 = vtk.vtkParametricSpline()
spline2.SetPoints(inputPoints)
spline2.ClosedOn()
spline2Source = vtk.vtkParametricFunctionSource()
spline2Source.SetParametricFunction(spline2)
spline2Mapper = vtk.vtkPolyDataMapper()
spline2Mapper.SetInputConnection(spline2Source.GetOutputPort())
spline2Actor = vtk.vtkActor()
spline2Actor.SetMapper(spline2Mapper)
spline2Actor.SetPosition(24, 4, 0)
spline2Actor.GetProperty().SetColor(0, 0, 0)
spline2TextMapper = vtk.vtkTextMapper()
spline2TextMapper.SetInput("Closed.Spline")
spline2TextMapper.GetTextProperty().SetJustificationToCentered()
spline2TextMapper.GetTextProperty().SetVerticalJustificationToCentered()
spline2TextMapper.GetTextProperty().SetColor(1, 0, 0)
spline2TextMapper.GetTextProperty().SetFontSize(14)
spline2TextActor = vtk.vtkActor2D()
spline2TextActor.SetMapper(spline2TextMapper)
spline2TextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
spline2TextActor.GetPositionCoordinate().SetValue(24, 1.5, 0)
# ------------------------------------------------------------
# Create a spiral conic
# ------------------------------------------------------------
sconic = vtk.vtkParametricConicSpiral()
sconic.SetA(0.8)
sconic.SetB(2.5)
sconic.SetC(0.4)
sconicSource = vtk.vtkParametricFunctionSource()
sconicSource.SetParametricFunction(sconic)
sconicSource.SetScalarModeToDistance()
sconicMapper = vtk.vtkPolyDataMapper()
sconicMapper.SetInputConnection(sconicSource.GetOutputPort())
sconicActor = vtk.vtkActor()
sconicActor.SetMapper(sconicMapper)
sconicMapper.SetScalarRange(0, 9)
sconicActor.SetPosition(0, -4, 0)
sconicActor.SetScale(1.2, 1.2, 1.2)
sconicTextMapper = vtk.vtkTextMapper()
sconicTextMapper.SetInput("Spiral.Conic")
sconicTextMapper.GetTextProperty().SetJustificationToCentered()
sconicTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
sconicTextMapper.GetTextProperty().SetColor(1, 0, 0)
sconicTextMapper.GetTextProperty().SetFontSize(14)
sconicTextActor = vtk.vtkActor2D()
sconicTextActor.SetMapper(sconicTextMapper)
sconicTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
sconicTextActor.GetPositionCoordinate().SetValue(0, -6.5, 0)
# ------------------------------------------------------------
# Create Boy's surface
# ------------------------------------------------------------
boy = vtk.vtkParametricBoy()
boySource = vtk.vtkParametricFunctionSource()
boySource.SetParametricFunction(boy)
boySource.SetScalarModeToModulus()
boyMapper = vtk.vtkPolyDataMapper()
boyMapper.SetInputConnection(boySource.GetOutputPort())
boyMapper.SetScalarRange(0, 2)
boyActor = vtk.vtkActor()
boyActor.SetMapper(boyMapper)
boyActor.SetPosition(8, -4, 0)
boyActor.SetScale(1.5, 1.5, 1.5)
boyTextMapper = vtk.vtkTextMapper()
boyTextMapper.SetInput("Boy")
boyTextMapper.GetTextProperty().SetJustificationToCentered()
boyTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
boyTextMapper.GetTextProperty().SetColor(1, 0, 0)
boyTextMapper.GetTextProperty().SetFontSize(14)
boyTextActor = vtk.vtkActor2D()
boyTextActor.SetMapper(boyTextMapper)
boyTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
boyTextActor.GetPositionCoordinate().SetValue(8, -6.5, 0)
# ------------------------------------------------------------
# Create a cross cap
# ------------------------------------------------------------
crossCap = vtk.vtkParametricCrossCap()
crossCapSource = vtk.vtkParametricFunctionSource()
crossCapSource.SetParametricFunction(crossCap)
crossCapSource.SetScalarModeToY()
crossCapMapper = vtk.vtkPolyDataMapper()
crossCapMapper.SetInputConnection(crossCapSource.GetOutputPort())
crossCapActor = vtk.vtkActor()
crossCapActor.SetMapper(crossCapMapper)
crossCapActor.RotateX(65)
crossCapActor.SetPosition(16, -4, 0)
crossCapActor.SetScale(1.5, 1.5, 1.5)
crossCapTextMapper = vtk.vtkTextMapper()
crossCapTextMapper.SetInput("Cross.Cap")
crossCapTextMapper.GetTextProperty().SetJustificationToCentered()
crossCapTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
crossCapTextMapper.GetTextProperty().SetColor(1, 0, 0)
crossCapTextMapper.GetTextProperty().SetFontSize(14)
crossCapTextActor = vtk.vtkActor2D()
crossCapTextActor.SetMapper(crossCapTextMapper)
crossCapTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
crossCapTextActor.GetPositionCoordinate().SetValue(16, -6.5, 0)
# ------------------------------------------------------------
# Create Dini's surface
# ------------------------------------------------------------
dini = vtk.vtkParametricDini()
diniSource = vtk.vtkParametricFunctionSource()
diniSource.SetScalarModeToDistance()
diniSource.SetParametricFunction(dini)
diniMapper = vtk.vtkPolyDataMapper()
diniMapper.SetInputConnection(diniSource.GetOutputPort())
diniActor = vtk.vtkActor()
diniActor.SetMapper(diniMapper)
diniActor.RotateX(-90)
diniActor.SetPosition(24, -3, 0)
diniActor.SetScale(1.5, 1.5, 0.5)
diniTextMapper = vtk.vtkTextMapper()
diniTextMapper.SetInput("Dini")
diniTextMapper.GetTextProperty().SetJustificationToCentered()
diniTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
diniTextMapper.GetTextProperty().SetColor(1, 0, 0)
diniTextMapper.GetTextProperty().SetFontSize(14)
diniTextActor = vtk.vtkActor2D()
diniTextActor.SetMapper(diniTextMapper)
diniTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
diniTextActor.GetPositionCoordinate().SetValue(24, -6.5, 0)
# ------------------------------------------------------------
# Create Enneper's surface
# ------------------------------------------------------------
enneper = vtk.vtkParametricEnneper()
enneperSource = vtk.vtkParametricFunctionSource()
enneperSource.SetParametricFunction(enneper)
enneperSource.SetScalarModeToQuadrant()
enneperMapper = vtk.vtkPolyDataMapper()
enneperMapper.SetInputConnection(enneperSource.GetOutputPort())
enneperMapper.SetScalarRange(1, 4)
enneperActor = vtk.vtkActor()
enneperActor.SetMapper(enneperMapper)
enneperActor.SetPosition(0, -12, 0)
enneperActor.SetScale(0.25, 0.25, 0.25)
enneperTextMapper = vtk.vtkTextMapper()
enneperTextMapper.SetInput("Enneper")
enneperTextMapper.GetTextProperty().SetJustificationToCentered()
enneperTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
enneperTextMapper.GetTextProperty().SetColor(1, 0, 0)
enneperTextMapper.GetTextProperty().SetFontSize(14)
enneperTextActor = vtk.vtkActor2D()
enneperTextActor.SetMapper(enneperTextMapper)
enneperTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
enneperTextActor.GetPositionCoordinate().SetValue(0, -14.5, 0)
# ------------------------------------------------------------
# Create an ellipsoidal surface
# ------------------------------------------------------------
ellipsoid = vtk.vtkParametricEllipsoid()
ellipsoid.SetXRadius(1)
ellipsoid.SetYRadius(0.75)
ellipsoid.SetZRadius(0.5)
ellipsoidSource = vtk.vtkParametricFunctionSource()
ellipsoidSource.SetParametricFunction(ellipsoid)
ellipsoidSource.SetScalarModeToZ()
ellipsoidMapper = vtk.vtkPolyDataMapper()
ellipsoidMapper.SetInputConnection(ellipsoidSource.GetOutputPort())
ellipsoidMapper.SetScalarRange(-0.5, 0.5)
ellipsoidActor = vtk.vtkActor()
ellipsoidActor.SetMapper(ellipsoidMapper)
ellipsoidActor.SetPosition(8, -12, 0)
ellipsoidActor.SetScale(1.5, 1.5, 1.5)
ellipsoidTextMapper = vtk.vtkTextMapper()
ellipsoidTextMapper.SetInput("Ellipsoid")
ellipsoidTextMapper.GetTextProperty().SetJustificationToCentered()
ellipsoidTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
ellipsoidTextMapper.GetTextProperty().SetColor(1, 0, 0)
ellipsoidTextMapper.GetTextProperty().SetFontSize(14)
ellipsoidTextActor = vtk.vtkActor2D()
ellipsoidTextActor.SetMapper(ellipsoidTextMapper)
ellipsoidTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
ellipsoidTextActor.GetPositionCoordinate().SetValue(8, -14.5, 0)
# ------------------------------------------------------------
# Create an surface with random hills on it.
# Note that for testing, we will disable the
# random generation of the surfaces. This is
# because random number generators do not
# return the same result on different operating
# systems.
# ------------------------------------------------------------
randomHills = vtk.vtkParametricRandomHills()
randomHills.AllowRandomGenerationOff()
randomHills.GenerateTheHills()
randomHillsSource = vtk.vtkParametricFunctionSource()
randomHillsSource.SetParametricFunction(randomHills)
randomHillsSource.GenerateTextureCoordinatesOn()
randomHillsMapper = vtk.vtkPolyDataMapper()
randomHillsMapper.SetInputConnection(randomHillsSource.GetOutputPort())
randomHillsActor = vtk.vtkActor()
randomHillsActor.SetMapper(randomHillsMapper)
randomHillsActor.SetPosition(16, -14, 0)
randomHillsActor.SetScale(0.2, 0.2, 0.2)
randomHillsActor.SetTexture(texture)
randomHillsTextMapper = vtk.vtkTextMapper()
randomHillsTextMapper.SetInput("Random.Hills")
randomHillsTextMapper.GetTextProperty().SetJustificationToCentered()
randomHillsTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
randomHillsTextMapper.GetTextProperty().SetColor(1, 0, 0)
randomHillsTextMapper.GetTextProperty().SetFontSize(14)
randomHillsTextActor = vtk.vtkActor2D()
randomHillsTextActor.SetMapper(randomHillsTextMapper)
randomHillsTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
randomHillsTextActor.GetPositionCoordinate().SetValue(16, -14.5, 0)
# ------------------------------------------------------------
# Create an Steiner's Roman Surface.
# ------------------------------------------------------------
roman = vtk.vtkParametricRoman()
roman.SetRadius(1.5)
romanSource = vtk.vtkParametricFunctionSource()
romanSource.SetParametricFunction(roman)
romanSource.SetScalarModeToX()
romanMapper = vtk.vtkPolyDataMapper()
romanMapper.SetInputConnection(romanSource.GetOutputPort())
romanActor = vtk.vtkActor()
romanActor.SetMapper(romanMapper)
romanActor.SetPosition(24, -12, 0)
romanTextMapper = vtk.vtkTextMapper()
romanTextMapper.SetInput("Roman")
romanTextMapper.GetTextProperty().SetJustificationToCentered()
romanTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
romanTextMapper.GetTextProperty().SetColor(1, 0, 0)
romanTextMapper.GetTextProperty().SetFontSize(14)
romanTextActor = vtk.vtkActor2D()
romanTextActor.SetMapper(romanTextMapper)
romanTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
romanTextActor.GetPositionCoordinate().SetValue(24, -14.5, 0)
# ------------------------------------------------------------
# Create the RenderWindow, Renderer and both Actors
# ------------------------------------------------------------
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
# add actors
ren.AddViewProp(torusActor)
ren.AddViewProp(kleinActor)
ren.AddViewProp(klein2Actor)
ren.AddViewProp(toroidActor)
ren.AddViewProp(superEllipsoidActor)
ren.AddViewProp(mobiusActor)
ren.AddViewProp(splineActor)
ren.AddViewProp(spline2Actor)
ren.AddViewProp(sconicActor)
ren.AddViewProp(boyActor)
ren.AddViewProp(crossCapActor)
ren.AddViewProp(diniActor)
ren.AddViewProp(enneperActor)
ren.AddViewProp(ellipsoidActor)
ren.AddViewProp(randomHillsActor)
ren.AddViewProp(romanActor)
#add text actors
ren.AddViewProp(torusTextActor)
ren.AddViewProp(kleinTextActor)
ren.AddViewProp(fig8KleinTextActor)
ren.AddViewProp(mobiusTextActor)
ren.AddViewProp(superToroidTextActor)
ren.AddViewProp(superEllipsoidTextActor)
ren.AddViewProp(splineTextActor)
ren.AddViewProp(spline2TextActor)
ren.AddViewProp(sconicTextActor)
ren.AddViewProp(boyTextActor)
ren.AddViewProp(crossCapTextActor)
ren.AddViewProp(diniTextActor)
ren.AddViewProp(enneperTextActor)
ren.AddViewProp(ellipsoidTextActor)
ren.AddViewProp(randomHillsTextActor)
ren.AddViewProp(romanTextActor)
ren.SetBackground(0.7, 0.8, 1)
renWin.SetSize(500, 500)
ren.ResetCamera()
ren.GetActiveCamera().Zoom(1.3)
iren.Initialize()
renWin.Render()
img_file = "TestParametricFunctions.png"
vtk.test.Testing.compareImage(iren.GetRenderWindow(), vtk.test.Testing.getAbsImagePath(img_file), threshold=35)
vtk.test.Testing.interact()
ellipsoidTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
ellipsoidTextMapper.GetTextProperty().SetColor(1, 0, 0)
ellipsoidTextMapper.GetTextProperty().SetFontSize(14)
ellipsoidTextActor = vtk.vtkActor2D()
ellipsoidTextActor.SetMapper(ellipsoidTextMapper)
ellipsoidTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
ellipsoidTextActor.GetPositionCoordinate().SetValue(8, -14.5, 0)
# ------------------------------------------------------------
# Create an surface with random hills on it.
# Note that for testing, we will disable the
# random generation of the surfaces. This is
# because random number generators do not
# return the same result on different operating
# systems.
# ------------------------------------------------------------
randomHills = vtk.vtkParametricRandomHills()
randomHills.AllowRandomGenerationOff()
randomHills.GenerateTheHills()
randomHillsSource = vtk.vtkParametricFunctionSource()
randomHillsSource.SetParametricFunction(randomHills)
randomHillsSource.GenerateTextureCoordinatesOn()
randomHillsMapper = vtk.vtkPolyDataMapper()
randomHillsMapper.SetInputConnection(randomHillsSource.GetOutputPort())
randomHillsActor = vtk.vtkActor()
randomHillsActor.SetMapper(randomHillsMapper)
randomHillsActor.SetPosition(16, -14, 0)
randomHillsActor.SetScale(0.2, 0.2, 0.2)
randomHillsActor.SetTexture(texture)
randomHillsTextMapper = vtk.vtkTextMapper()
randomHillsTextMapper.SetInput("Random Hills")
randomHillsTextMapper.GetTextProperty().SetJustificationToCentered()
lst = [
#vtk.vtkParametricBoy(),
#vtk.vtkParametricConicSpiral(),
#vtk.vtkParametricCrossCap(),
#vtk.vtkParametricDini(),
#vtk.vtkParametricFigure8Klein(),
#vtk.vtkParametricKlein(),
#vtk.vtkParametricKuen(),
#vtk.vtkParametricMobius(),
#vtk.vtkParametricPseudosphere(),
#vtk.vtkParametricRoman(),
vtk.vtkParametricCatalanMinimal(),
vtk.vtkParametricEnneper(),
vtk.vtkParametricHenneberg(),
vtk.vtkParametricPluckerConoid(),
vtk.vtkParametricRandomHills(),
#vtk.vtkParametricSpline(),
#vtk.vtkParametricEllipsoid(),
#vtk.vtkParametricSuperEllipsoid(),
#vtk.vtkParametricSuperToroid(),
#vtk.vtkParametricTorus(),
]
lst2 = [
vtk.vtkParametricCatalanMinimal(), # 4 lobi - brutto
vtk.vtkParametricEllipsoid(), # e' una palla -- vedere params
vtk.vtkParametricEnneper(), # grosso -- farfalla
vtk.vtkParametricHenneberg(), # grosso -- farfalla
vtk.vtkParametricPluckerConoid(), # grosso
vtk.vtkParametricRandomHills(), # grosso -- dem procedurale
vtk.vtkParametricSpline(), # --- vuole params
def ParametricObjects(self):
parametricObjects = list()
parametricObjects.append(vtk.vtkParametricBoy())
parametricObjects.append(vtk.vtkParametricConicSpiral())
parametricObjects.append(vtk.vtkParametricCrossCap())
parametricObjects.append(vtk.vtkParametricDini())
parametricObjects.append(vtk.vtkParametricEllipsoid())
parametricObjects[-1].SetXRadius(0.5)
parametricObjects[-1].SetYRadius(2.0)
parametricObjects.append(vtk.vtkParametricEnneper())
parametricObjects.append(vtk.vtkParametricFigure8Klein())
parametricObjects.append(vtk.vtkParametricKlein())
parametricObjects.append(vtk.vtkParametricMobius())
parametricObjects[-1].SetRadius(2)
parametricObjects[-1].SetMinimumV(-0.5)
parametricObjects[-1].SetMaximumV(0.5)
parametricObjects.append(vtk.vtkParametricRandomHills())
parametricObjects[-1].AllowRandomGenerationOff()
parametricObjects.append(vtk.vtkParametricRoman())
parametricObjects.append(vtk.vtkParametricSuperEllipsoid())
parametricObjects[-1].SetN1(0.5)
parametricObjects[-1].SetN2(0.1)
parametricObjects.append(vtk.vtkParametricSuperToroid())
parametricObjects[-1].SetN1(0.2)
parametricObjects[-1].SetN2(3.0)
parametricObjects.append(vtk.vtkParametricTorus())
parametricObjects.append(vtk.vtkParametricSpline())
# Add some points to the parametric spline.
inputPoints = vtk.vtkPoints()
vtk.vtkMath.RandomSeed(8775070)
for i in range(10):
x = vtk.vtkMath.Random(0.0,1.0)
y = vtk.vtkMath.Random(0.0,1.0)
z = vtk.vtkMath.Random(0.0,1.0)
inputPoints.InsertNextPoint(x, y, z)
parametricObjects[-1].SetPoints(inputPoints)
# There are only 15 objects.
parametricFunctionSources = list()
renderers = list()
mappers = list()
actors = list()
textmappers = list()
textactors = list()
# Create a common text property.
textProperty = vtk.vtkTextProperty()
textProperty.SetFontSize(10)
textProperty.SetJustificationToCentered()
# Create a parametric function source, renderer, mapper
# and actor for each object.
for idx, item in enumerate(parametricObjects):
parametricFunctionSources.append(vtk.vtkParametricFunctionSource())
parametricFunctionSources[idx].SetParametricFunction(item)
parametricFunctionSources[idx].Update()
mappers.append(vtk.vtkPolyDataMapper())
mappers[idx].SetInputConnection(parametricFunctionSources[idx].GetOutputPort())
actors.append(vtk.vtkActor())
actors[idx].SetMapper(mappers[idx])
textmappers.append(vtk.vtkTextMapper())
textmappers[idx].SetInput(item.GetClassName())
textmappers[idx].SetTextProperty(textProperty)
textactors.append(vtk.vtkActor2D())
textactors[idx].SetMapper(textmappers[idx])
textactors[idx].SetPosition(100, 16)
renderers.append(vtk.vtkRenderer())
gridDimensions = 4
for idx in range(len(parametricObjects)):
if idx < gridDimensions * gridDimensions:
renderers.append(vtk.vtkRenderer)
rendererSize = 200
# Create the RenderWindow
#
renderWindow = vtk.vtkRenderWindow()
renderWindow.SetSize(rendererSize * gridDimensions, rendererSize * gridDimensions)
# Add and position the renders to the render window.
viewport = list()
for row in range(gridDimensions):
for col in range(gridDimensions):
idx = row * gridDimensions + col
viewport[:] = []
viewport.append(float(col) * rendererSize / (gridDimensions * rendererSize))
viewport.append(float(gridDimensions - (row+1)) * rendererSize / (gridDimensions * rendererSize))
viewport.append(float(col+1)*rendererSize / (gridDimensions * rendererSize))
viewport.append(float(gridDimensions - row) * rendererSize / (gridDimensions * rendererSize))
if idx > (len(parametricObjects) - 1):
continue
renderers[idx].SetViewport(viewport)
renderWindow.AddRenderer(renderers[idx])
renderers[idx].AddActor(actors[idx])
renderers[idx].AddActor(textactors[idx])
renderers[idx].SetBackground(0.2,0.3,0.4)
renderers[idx].ResetCamera()
renderers[idx].GetActiveCamera().Azimuth(30)
renderers[idx].GetActiveCamera().Elevation(-30)
renderers[idx].GetActiveCamera().Zoom(0.9)
renderers[idx].ResetCameraClippingRange()
interactor = vtk.vtkRenderWindowInteractor()
interactor.SetRenderWindow(renderWindow)
renderWindow.Render()
interactor.Start()
def CurvaturesDemo(self):
# We are going to handle two different sources.
# The first source is a superquadric source.
torus = vtk.vtkSuperquadricSource()
torus.SetCenter(0.0, 0.0, 0.0)
torus.SetScale(1.0, 1.0, 1.0)
torus.SetPhiResolution(64)
torus.SetThetaResolution(64)
torus.SetThetaRoundness(1)
torus.SetThickness(0.5)
torus.SetSize(0.5)
torus.SetToroidal(1)
# Rotate the torus towards the observer (around the x-axis)
torusT = vtk.vtkTransform()
torusT.RotateX(55)
torusTF = vtk.vtkTransformFilter()
torusTF.SetInputConnection(torus.GetOutputPort())
torusTF.SetTransform(torusT)
# The quadric is made of strips, so pass it through a triangle filter as
# the curvature filter only operates on polys
tri = vtk.vtkTriangleFilter()
tri.SetInputConnection(torusTF.GetOutputPort())
# The quadric has nasty discontinuities from the way the edges are generated
# so let's pass it though a CleanPolyDataFilter and merge any points which
# are coincident, or very close
cleaner = vtk.vtkCleanPolyData()
cleaner.SetInputConnection(tri.GetOutputPort())
cleaner.SetTolerance(0.005)
# The next source will be a parametric function
rh = vtk.vtkParametricRandomHills()
rhFnSrc = vtk.vtkParametricFunctionSource()
rhFnSrc.SetParametricFunction(rh)
# Now we have the sources, lets put them into a list.
sources = list()
sources.append(cleaner)
sources.append(cleaner)
sources.append(rhFnSrc)
sources.append(rhFnSrc)
# Colour transfer function.
ctf = vtk.vtkColorTransferFunction()
ctf.SetColorSpaceToDiverging()
ctf.AddRGBPoint(0.0, 0.230, 0.299, 0.754)
ctf.AddRGBPoint(1.0, 0.706, 0.016, 0.150)
cc = list()
for i in range(256):
cc.append(ctf.GetColor(float(i) / 255.0))
# Lookup table.
lut = list()
for idx in range(len(sources)):
lut.append(vtk.vtkLookupTable())
lut[idx].SetNumberOfColors(256)
for i, item in enumerate(cc):
lut[idx].SetTableValue(i, item[0], item[1], item[2], 1.0)
if idx == 0:
lut[idx].SetRange(-10, 10)
if idx == 1:
lut[idx].SetRange(0, 4)
if idx == 2:
lut[idx].SetRange(-1, 1)
if idx == 3:
lut[idx].SetRange(-1, 1)
lut[idx].Build()
curvatures = list()
for idx in range(len(sources)):
curvatures.append(vtk.vtkCurvatures())
if idx % 2 == 0:
curvatures[idx].SetCurvatureTypeToGaussian()
else:
curvatures[idx].SetCurvatureTypeToMean()
renderers = list()
mappers = list()
actors = list()
textmappers = list()
textactors = list()
# Create a common text property.
textProperty = vtk.vtkTextProperty()
textProperty.SetFontSize(10)
textProperty.SetJustificationToCentered()
names = [
'Torus - Gaussian Curvature', 'Torus - Mean Curvature',
'Random Hills - Gaussian Curvature',
'Random Hills - Mean Curvature'
]
# Link the pipeline together.
for idx, item in enumerate(sources):
sources[idx].Update()
curvatures[idx].SetInputConnection(sources[idx].GetOutputPort())
mappers.append(vtk.vtkPolyDataMapper())
mappers[idx].SetInputConnection(curvatures[idx].GetOutputPort())
mappers[idx].SetLookupTable(lut[idx])
mappers[idx].SetUseLookupTableScalarRange(1)
actors.append(vtk.vtkActor())
actors[idx].SetMapper(mappers[idx])
textmappers.append(vtk.vtkTextMapper())
textmappers[idx].SetInput(names[idx])
textmappers[idx].SetTextProperty(textProperty)
textactors.append(vtk.vtkActor2D())
textactors[idx].SetMapper(textmappers[idx])
textactors[idx].SetPosition(150, 16)
renderers.append(vtk.vtkRenderer())
gridDimensions = 2
for idx in range(len(sources)):
if idx < gridDimensions * gridDimensions:
renderers.append(vtk.vtkRenderer)
rendererSize = 300
# Create the RenderWindow
#
renderWindow = vtk.vtkRenderWindow()
renderWindow.SetSize(rendererSize * gridDimensions,
rendererSize * gridDimensions)
# Add and position the renders to the render window.
viewport = list()
for row in range(gridDimensions):
for col in range(gridDimensions):
idx = row * gridDimensions + col
viewport[:] = []
viewport.append(
float(col) * rendererSize /
(gridDimensions * rendererSize))
viewport.append(
float(gridDimensions - (row + 1)) * rendererSize /
(gridDimensions * rendererSize))
viewport.append(
float(col + 1) * rendererSize /
(gridDimensions * rendererSize))
viewport.append(
float(gridDimensions - row) * rendererSize /
(gridDimensions * rendererSize))
if idx > (len(sources) - 1):
continue
renderers[idx].SetViewport(viewport)
renderWindow.AddRenderer(renderers[idx])
renderers[idx].AddActor(actors[idx])
renderers[idx].AddActor(textactors[idx])
renderers[idx].SetBackground(0.4, 0.3, 0.2)
interactor = vtk.vtkRenderWindowInteractor()
interactor.SetRenderWindow(renderWindow)
renderWindow.Render()
interactor.Start()
def ParametricRandomHills(numberofhills=None, hillxvariance=None,
hillyvariance=None, hillamplitude=None,
randomseed=None, xvariancescalefactor=None,
yvariancescalefactor=None,
amplitudescalefactor=None, **kwargs):
"""Generate a surface covered with randomly placed hills.
ParametricRandomHills generates a surface covered with randomly
placed hills. Hills will vary in shape and height since the
presence of nearby hills will contribute to the shape and height
of a given hill. An option is provided for placing hills on a
regular grid on the surface. In this case the hills will all have
the same shape and height.
Parameters
----------
numberofhills : int, optional
The number of hills.
Default is 30.
hillxvariance : double, optional
The hill variance in the x-direction.
Default is 2.5.
hillyvariance : double, optional
The hill variance in the y-direction.
Default is 2.5.
hillamplitude : double, optional
The hill amplitude (height).
Default is 2.
randomseed : int, optional
The Seed for the random number generator,
a value of 1 will initialize the random number generator,
a negative value will initialize it with the system time.
Default is 1.
xvariancescalefactor : double, optional
The scaling factor for the variance in the x-direction.
Default is 13.
yvariancescalefactor : double, optional
The scaling factor for the variance in the y-direction.
Default is 13.
amplitudescalefactor : double, optional
The scaling factor for the amplitude.
Default is 13.
Returns
-------
surf : pyvista.PolyData
ParametricRandomHills surface
Examples
--------
Create a ParametricRandomHills mesh
>>> import pyvista
>>> mesh = pyvista.ParametricRandomHills()
>>> mesh.plot(color='w', smooth_shading=True) # doctest:+SKIP
"""
parametric_function = vtk.vtkParametricRandomHills()
if numberofhills is not None:
parametric_function.SetNumberOfHills(numberofhills)
if hillxvariance is not None:
parametric_function.SetHillXVariance(hillxvariance)
if hillyvariance is not None:
parametric_function.SetHillYVariance(hillyvariance)
if hillamplitude is not None:
parametric_function.SetHillAmplitude(hillamplitude)
if randomseed is not None:
parametric_function.SetRandomSeed(randomseed)
if xvariancescalefactor is not None:
parametric_function.SetXVarianceScaleFactor(xvariancescalefactor)
if yvariancescalefactor is not None:
parametric_function.SetYVarianceScaleFactor(yvariancescalefactor)
if amplitudescalefactor is not None:
parametric_function.SetAmplitudeScaleFactor(amplitudescalefactor)
center = kwargs.pop('center', [0., 0., 0.])
direction = kwargs.pop('direction', [1., 0., 0.])
surf = surface_from_para(parametric_function, **kwargs)
translate(surf, center, direction)
return surf
def __init__(self, parent = None):
super(VTKFrame, self).__init__(parent)
self.vtkWidget = QVTKRenderWindowInteractor(self)
self.iren = self.vtkWidget.GetRenderWindow().GetInteractor()
vl = QtGui.QVBoxLayout(self)
vl.addWidget(self.vtkWidget)
vl.setContentsMargins(0, 0, 0, 0)
# Create source
parametricObjects = list()
parametricObjects.append(vtk.vtkParametricBoy())
parametricObjects.append(vtk.vtkParametricConicSpiral())
parametricObjects.append(vtk.vtkParametricCrossCap())
parametricObjects.append(vtk.vtkParametricDini())
parametricObjects.append(vtk.vtkParametricEllipsoid())
parametricObjects[-1].SetXRadius(0.5)
parametricObjects[-1].SetYRadius(2.0)
parametricObjects.append(vtk.vtkParametricEnneper())
parametricObjects.append(vtk.vtkParametricFigure8Klein())
parametricObjects.append(vtk.vtkParametricKlein())
parametricObjects.append(vtk.vtkParametricMobius())
parametricObjects[-1].SetRadius(2)
parametricObjects[-1].SetMinimumV(-0.5)
parametricObjects[-1].SetMaximumV(0.5)
parametricObjects.append(vtk.vtkParametricRandomHills())
parametricObjects[-1].AllowRandomGenerationOff()
parametricObjects.append(vtk.vtkParametricRoman())
parametricObjects.append(vtk.vtkParametricSuperEllipsoid())
parametricObjects[-1].SetN1(0.5)
parametricObjects[-1].SetN2(0.1)
parametricObjects.append(vtk.vtkParametricSuperToroid())
parametricObjects[-1].SetN1(0.2)
parametricObjects[-1].SetN2(3.0)
parametricObjects.append(vtk.vtkParametricTorus())
parametricObjects.append(vtk.vtkParametricSpline())
# Add some points to the parametric spline.
inputPoints = vtk.vtkPoints()
vtk.vtkMath.RandomSeed(8775070)
for i in range(10):
x = vtk.vtkMath.Random(0.0,1.0)
y = vtk.vtkMath.Random(0.0,1.0)
z = vtk.vtkMath.Random(0.0,1.0)
inputPoints.InsertNextPoint(x, y, z)
parametricObjects[-1].SetPoints(inputPoints)
# There are only 15 objects.
parametricFunctionSources = list()
renderers = list()
mappers = list()
actors = list()
textmappers = list()
textactors = list()
# Create a common text property.
textProperty = vtk.vtkTextProperty()
textProperty.SetFontSize(10)
textProperty.SetJustificationToCentered()
# Create a parametric function source, renderer, mapper
# and actor for each object.
for idx, item in enumerate(parametricObjects):
parametricFunctionSources.append(vtk.vtkParametricFunctionSource())
parametricFunctionSources[idx].SetParametricFunction(item)
parametricFunctionSources[idx].Update()
mappers.append(vtk.vtkPolyDataMapper())
mappers[idx].SetInputConnection(parametricFunctionSources[idx].GetOutputPort())
actors.append(vtk.vtkActor())
actors[idx].SetMapper(mappers[idx])
textmappers.append(vtk.vtkTextMapper())
textmappers[idx].SetInput(item.GetClassName())
textmappers[idx].SetTextProperty(textProperty)
textactors.append(vtk.vtkActor2D())
textactors[idx].SetMapper(textmappers[idx])
textactors[idx].SetPosition(100, 16)
renderers.append(vtk.vtkRenderer())
gridDimensions = 4
for idx in range(len(parametricObjects)):
if idx < gridDimensions * gridDimensions:
renderers.append(vtk.vtkRenderer)
rendererSize = 200
# setup the RenderWindow
self.vtkWidget.GetRenderWindow().SetSize(rendererSize * gridDimensions, rendererSize * gridDimensions)
# Add and position the renders to the render window.
viewport = list()
for row in range(gridDimensions):
for col in range(gridDimensions):
idx = row * gridDimensions + col
viewport[:] = []
viewport.append(float(col) * rendererSize / (gridDimensions * rendererSize))
viewport.append(float(gridDimensions - (row+1)) * rendererSize / (gridDimensions * rendererSize))
viewport.append(float(col+1)*rendererSize / (gridDimensions * rendererSize))
viewport.append(float(gridDimensions - row) * rendererSize / (gridDimensions * rendererSize))
if idx > (len(parametricObjects) - 1):
continue
renderers[idx].SetViewport(viewport)
self.vtkWidget.GetRenderWindow().AddRenderer(renderers[idx])
renderers[idx].AddActor(actors[idx])
renderers[idx].AddActor(textactors[idx])
renderers[idx].SetBackground(0.2,0.3,0.4)
renderers[idx].ResetCamera()
renderers[idx].GetActiveCamera().Azimuth(30)
renderers[idx].GetActiveCamera().Elevation(-30)
renderers[idx].GetActiveCamera().Zoom(0.9)
renderers[idx].ResetCameraClippingRange()
self._initialized = False
def testParametricFunctions(self):
# ------------------------------------------------------------
# Get a texture
# ------------------------------------------------------------
textureReader = vtk.vtkJPEGReader()
textureReader.SetFileName(VTK_DATA_ROOT + "/Data/beach.jpg")
texture = vtk.vtkTexture()
texture.SetInputConnection(textureReader.GetOutputPort())
# ------------------------------------------------------------
# For each parametric surface:
# 1) Create it
# 2) Assign mappers and actors
# 3) Position this object
# 5) Add a label
# ------------------------------------------------------------
# ------------------------------------------------------------
# Create a torus
# ------------------------------------------------------------
torus = vtk.vtkParametricTorus()
torusSource = vtk.vtkParametricFunctionSource()
torusSource.SetParametricFunction(torus)
torusSource.SetScalarModeToPhase()
torusMapper = vtk.vtkPolyDataMapper()
torusMapper.SetInputConnection(torusSource.GetOutputPort())
torusMapper.SetScalarRange(0, 360)
torusActor = vtk.vtkActor()
torusActor.SetMapper(torusMapper)
torusActor.SetPosition(0, 12, 0)
torusTextMapper = vtk.vtkTextMapper()
torusTextMapper.SetInput("Torus")
torusTextMapper.GetTextProperty().SetJustificationToCentered()
torusTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
torusTextMapper.GetTextProperty().SetColor(1, 0, 0)
torusTextMapper.GetTextProperty().SetFontSize(14)
torusTextActor = vtk.vtkActor2D()
torusTextActor.SetMapper(torusTextMapper)
torusTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
torusTextActor.GetPositionCoordinate().SetValue(0, 9.5, 0)
# ------------------------------------------------------------
# Create a klein bottle
# ------------------------------------------------------------
klein = vtk.vtkParametricKlein()
kleinSource = vtk.vtkParametricFunctionSource()
kleinSource.SetParametricFunction(klein)
kleinSource.SetScalarModeToU0V0()
kleinMapper = vtk.vtkPolyDataMapper()
kleinMapper.SetInputConnection(kleinSource.GetOutputPort())
kleinMapper.SetScalarRange(0, 3)
kleinActor = vtk.vtkActor()
kleinActor.SetMapper(kleinMapper)
kleinActor.SetPosition(8, 10.5, 0)
kleinTextMapper = vtk.vtkTextMapper()
kleinTextMapper.SetInput("Klein")
kleinTextMapper.GetTextProperty().SetJustificationToCentered()
kleinTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
kleinTextMapper.GetTextProperty().SetColor(1, 0, 0)
kleinTextMapper.GetTextProperty().SetFontSize(14)
kleinTextActor = vtk.vtkActor2D()
kleinTextActor.SetMapper(kleinTextMapper)
kleinTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
kleinTextActor.GetPositionCoordinate().SetValue(8, 9.5, 0)
# ------------------------------------------------------------
# Create a Figure-8 Klein
# ------------------------------------------------------------
klein2 = vtk.vtkParametricFigure8Klein()
klein2Source = vtk.vtkParametricFunctionSource()
klein2Source.SetParametricFunction(klein2)
klein2Source.GenerateTextureCoordinatesOn()
klein2Mapper = vtk.vtkPolyDataMapper()
klein2Mapper.SetInputConnection(klein2Source.GetOutputPort())
klein2Mapper.SetScalarRange(0, 3)
klein2Actor = vtk.vtkActor()
klein2Actor.SetMapper(klein2Mapper)
klein2Actor.SetPosition(16, 12, 0)
klein2Actor.SetTexture(texture)
fig8KleinTextMapper = vtk.vtkTextMapper()
fig8KleinTextMapper.SetInput("Fig-8.Klein")
fig8KleinTextMapper.GetTextProperty().SetJustificationToCentered()
fig8KleinTextMapper.GetTextProperty(
).SetVerticalJustificationToCentered()
fig8KleinTextMapper.GetTextProperty().SetColor(1, 0, 0)
fig8KleinTextMapper.GetTextProperty().SetFontSize(14)
fig8KleinTextActor = vtk.vtkActor2D()
fig8KleinTextActor.SetMapper(fig8KleinTextMapper)
fig8KleinTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
fig8KleinTextActor.GetPositionCoordinate().SetValue(16, 9.5, 0)
# ------------------------------------------------------------
# Create a mobius strip
# ------------------------------------------------------------
mobius = vtk.vtkParametricMobius()
mobiusSource = vtk.vtkParametricFunctionSource()
mobiusSource.SetParametricFunction(mobius)
mobiusSource.GenerateTextureCoordinatesOn()
mobiusMapper = vtk.vtkPolyDataMapper()
mobiusMapper.SetInputConnection(mobiusSource.GetOutputPort())
mobiusActor = vtk.vtkActor()
mobiusActor.SetMapper(mobiusMapper)
mobiusActor.RotateX(45)
mobiusActor.SetPosition(24, 12, 0)
mobiusActor.SetTexture(texture)
mobiusTextMapper = vtk.vtkTextMapper()
mobiusTextMapper.SetInput("Mobius")
mobiusTextMapper.GetTextProperty().SetJustificationToCentered()
mobiusTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
mobiusTextMapper.GetTextProperty().SetColor(1, 0, 0)
mobiusTextMapper.GetTextProperty().SetFontSize(14)
mobiusTextActor = vtk.vtkActor2D()
mobiusTextActor.SetMapper(mobiusTextMapper)
mobiusTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
mobiusTextActor.GetPositionCoordinate().SetValue(24, 9.5, 0)
# ------------------------------------------------------------
# Create a super toroid
# ------------------------------------------------------------
toroid = vtk.vtkParametricSuperToroid()
toroid.SetN1(2)
toroid.SetN2(3)
toroidSource = vtk.vtkParametricFunctionSource()
toroidSource.SetParametricFunction(toroid)
toroidSource.SetScalarModeToU()
toroidMapper = vtk.vtkPolyDataMapper()
toroidMapper.SetInputConnection(toroidSource.GetOutputPort())
toroidMapper.SetScalarRange(0, 6.28)
toroidActor = vtk.vtkActor()
toroidActor.SetMapper(toroidMapper)
toroidActor.SetPosition(0, 4, 0)
superToroidTextMapper = vtk.vtkTextMapper()
superToroidTextMapper.SetInput("Super.Toroid")
superToroidTextMapper.GetTextProperty().SetJustificationToCentered()
superToroidTextMapper.GetTextProperty(
).SetVerticalJustificationToCentered()
superToroidTextMapper.GetTextProperty().SetColor(1, 0, 0)
superToroidTextMapper.GetTextProperty().SetFontSize(14)
superToroidTextActor = vtk.vtkActor2D()
superToroidTextActor.SetMapper(superToroidTextMapper)
superToroidTextActor.GetPositionCoordinate(
).SetCoordinateSystemToWorld()
superToroidTextActor.GetPositionCoordinate().SetValue(0, 1.5, 0)
# ------------------------------------------------------------
# Create a super ellipsoid
# ------------------------------------------------------------
superEllipsoid = vtk.vtkParametricSuperEllipsoid()
superEllipsoid.SetXRadius(1.25)
superEllipsoid.SetYRadius(1.5)
superEllipsoid.SetZRadius(1.0)
superEllipsoid.SetN1(1.1)
superEllipsoid.SetN2(1.75)
superEllipsoidSource = vtk.vtkParametricFunctionSource()
superEllipsoidSource.SetParametricFunction(superEllipsoid)
superEllipsoidSource.SetScalarModeToV()
superEllipsoidMapper = vtk.vtkPolyDataMapper()
superEllipsoidMapper.SetInputConnection(
superEllipsoidSource.GetOutputPort())
superEllipsoidMapper.SetScalarRange(0, 3.14)
superEllipsoidActor = vtk.vtkActor()
superEllipsoidActor.SetMapper(superEllipsoidMapper)
superEllipsoidActor.SetPosition(8, 4, 0)
superEllipsoidTextMapper = vtk.vtkTextMapper()
superEllipsoidTextMapper.SetInput("Super.Ellipsoid")
superEllipsoidTextMapper.GetTextProperty().SetJustificationToCentered()
superEllipsoidTextMapper.GetTextProperty(
).SetVerticalJustificationToCentered()
superEllipsoidTextMapper.GetTextProperty().SetColor(1, 0, 0)
superEllipsoidTextMapper.GetTextProperty().SetFontSize(14)
superEllipsoidTextActor = vtk.vtkActor2D()
superEllipsoidTextActor.SetMapper(superEllipsoidTextMapper)
superEllipsoidTextActor.GetPositionCoordinate(
).SetCoordinateSystemToWorld()
superEllipsoidTextActor.GetPositionCoordinate().SetValue(8, 1.5, 0)
# ------------------------------------------------------------
# Create an open 1D spline
# ------------------------------------------------------------
math = vtk.vtkMath()
inputPoints = vtk.vtkPoints()
for i in range(0, 10):
x = math.Random(-1, 1)
y = math.Random(-1, 1)
z = math.Random(-1, 1)
inputPoints.InsertPoint(i, x, y, z)
spline = vtk.vtkParametricSpline()
spline.SetPoints(inputPoints)
spline.ClosedOff()
splineSource = vtk.vtkParametricFunctionSource()
splineSource.SetParametricFunction(spline)
splineMapper = vtk.vtkPolyDataMapper()
splineMapper.SetInputConnection(splineSource.GetOutputPort())
splineActor = vtk.vtkActor()
splineActor.SetMapper(splineMapper)
splineActor.SetPosition(16, 4, 0)
splineActor.GetProperty().SetColor(0, 0, 0)
splineTextMapper = vtk.vtkTextMapper()
splineTextMapper.SetInput("Open.Spline")
splineTextMapper.GetTextProperty().SetJustificationToCentered()
splineTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
splineTextMapper.GetTextProperty().SetColor(1, 0, 0)
splineTextMapper.GetTextProperty().SetFontSize(14)
splineTextActor = vtk.vtkActor2D()
splineTextActor.SetMapper(splineTextMapper)
splineTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
splineTextActor.GetPositionCoordinate().SetValue(16, 1.5, 0)
# ------------------------------------------------------------
# Create a closed 1D spline
# ------------------------------------------------------------
spline2 = vtk.vtkParametricSpline()
spline2.SetPoints(inputPoints)
spline2.ClosedOn()
spline2Source = vtk.vtkParametricFunctionSource()
spline2Source.SetParametricFunction(spline2)
spline2Mapper = vtk.vtkPolyDataMapper()
spline2Mapper.SetInputConnection(spline2Source.GetOutputPort())
spline2Actor = vtk.vtkActor()
spline2Actor.SetMapper(spline2Mapper)
spline2Actor.SetPosition(24, 4, 0)
spline2Actor.GetProperty().SetColor(0, 0, 0)
spline2TextMapper = vtk.vtkTextMapper()
spline2TextMapper.SetInput("Closed.Spline")
spline2TextMapper.GetTextProperty().SetJustificationToCentered()
spline2TextMapper.GetTextProperty().SetVerticalJustificationToCentered(
)
spline2TextMapper.GetTextProperty().SetColor(1, 0, 0)
spline2TextMapper.GetTextProperty().SetFontSize(14)
spline2TextActor = vtk.vtkActor2D()
spline2TextActor.SetMapper(spline2TextMapper)
spline2TextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
spline2TextActor.GetPositionCoordinate().SetValue(24, 1.5, 0)
# ------------------------------------------------------------
# Create a spiral conic
# ------------------------------------------------------------
sconic = vtk.vtkParametricConicSpiral()
sconic.SetA(0.8)
sconic.SetB(2.5)
sconic.SetC(0.4)
sconicSource = vtk.vtkParametricFunctionSource()
sconicSource.SetParametricFunction(sconic)
sconicSource.SetScalarModeToDistance()
sconicMapper = vtk.vtkPolyDataMapper()
sconicMapper.SetInputConnection(sconicSource.GetOutputPort())
sconicActor = vtk.vtkActor()
sconicActor.SetMapper(sconicMapper)
sconicMapper.SetScalarRange(0, 9)
sconicActor.SetPosition(0, -4, 0)
sconicActor.SetScale(1.2, 1.2, 1.2)
sconicTextMapper = vtk.vtkTextMapper()
sconicTextMapper.SetInput("Spiral.Conic")
sconicTextMapper.GetTextProperty().SetJustificationToCentered()
sconicTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
sconicTextMapper.GetTextProperty().SetColor(1, 0, 0)
sconicTextMapper.GetTextProperty().SetFontSize(14)
sconicTextActor = vtk.vtkActor2D()
sconicTextActor.SetMapper(sconicTextMapper)
sconicTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
sconicTextActor.GetPositionCoordinate().SetValue(0, -6.5, 0)
# ------------------------------------------------------------
# Create Boy's surface
# ------------------------------------------------------------
boy = vtk.vtkParametricBoy()
boySource = vtk.vtkParametricFunctionSource()
boySource.SetParametricFunction(boy)
boySource.SetScalarModeToModulus()
boyMapper = vtk.vtkPolyDataMapper()
boyMapper.SetInputConnection(boySource.GetOutputPort())
boyMapper.SetScalarRange(0, 2)
boyActor = vtk.vtkActor()
boyActor.SetMapper(boyMapper)
boyActor.SetPosition(8, -4, 0)
boyActor.SetScale(1.5, 1.5, 1.5)
boyTextMapper = vtk.vtkTextMapper()
boyTextMapper.SetInput("Boy")
boyTextMapper.GetTextProperty().SetJustificationToCentered()
boyTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
boyTextMapper.GetTextProperty().SetColor(1, 0, 0)
boyTextMapper.GetTextProperty().SetFontSize(14)
boyTextActor = vtk.vtkActor2D()
boyTextActor.SetMapper(boyTextMapper)
boyTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
boyTextActor.GetPositionCoordinate().SetValue(8, -6.5, 0)
# ------------------------------------------------------------
# Create a cross cap
# ------------------------------------------------------------
crossCap = vtk.vtkParametricCrossCap()
crossCapSource = vtk.vtkParametricFunctionSource()
crossCapSource.SetParametricFunction(crossCap)
crossCapSource.SetScalarModeToY()
crossCapMapper = vtk.vtkPolyDataMapper()
crossCapMapper.SetInputConnection(crossCapSource.GetOutputPort())
crossCapActor = vtk.vtkActor()
crossCapActor.SetMapper(crossCapMapper)
crossCapActor.RotateX(65)
crossCapActor.SetPosition(16, -4, 0)
crossCapActor.SetScale(1.5, 1.5, 1.5)
crossCapTextMapper = vtk.vtkTextMapper()
crossCapTextMapper.SetInput("Cross.Cap")
crossCapTextMapper.GetTextProperty().SetJustificationToCentered()
crossCapTextMapper.GetTextProperty(
).SetVerticalJustificationToCentered()
crossCapTextMapper.GetTextProperty().SetColor(1, 0, 0)
crossCapTextMapper.GetTextProperty().SetFontSize(14)
crossCapTextActor = vtk.vtkActor2D()
crossCapTextActor.SetMapper(crossCapTextMapper)
crossCapTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
crossCapTextActor.GetPositionCoordinate().SetValue(16, -6.5, 0)
# ------------------------------------------------------------
# Create Dini's surface
# ------------------------------------------------------------
dini = vtk.vtkParametricDini()
diniSource = vtk.vtkParametricFunctionSource()
diniSource.SetScalarModeToDistance()
diniSource.SetParametricFunction(dini)
diniMapper = vtk.vtkPolyDataMapper()
diniMapper.SetInputConnection(diniSource.GetOutputPort())
diniActor = vtk.vtkActor()
diniActor.SetMapper(diniMapper)
diniActor.RotateX(-90)
diniActor.SetPosition(24, -3, 0)
diniActor.SetScale(1.5, 1.5, 0.5)
diniTextMapper = vtk.vtkTextMapper()
diniTextMapper.SetInput("Dini")
diniTextMapper.GetTextProperty().SetJustificationToCentered()
diniTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
diniTextMapper.GetTextProperty().SetColor(1, 0, 0)
diniTextMapper.GetTextProperty().SetFontSize(14)
diniTextActor = vtk.vtkActor2D()
diniTextActor.SetMapper(diniTextMapper)
diniTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
diniTextActor.GetPositionCoordinate().SetValue(24, -6.5, 0)
# ------------------------------------------------------------
# Create Enneper's surface
# ------------------------------------------------------------
enneper = vtk.vtkParametricEnneper()
enneperSource = vtk.vtkParametricFunctionSource()
enneperSource.SetParametricFunction(enneper)
enneperSource.SetScalarModeToQuadrant()
enneperMapper = vtk.vtkPolyDataMapper()
enneperMapper.SetInputConnection(enneperSource.GetOutputPort())
enneperMapper.SetScalarRange(1, 4)
enneperActor = vtk.vtkActor()
enneperActor.SetMapper(enneperMapper)
enneperActor.SetPosition(0, -12, 0)
enneperActor.SetScale(0.25, 0.25, 0.25)
enneperTextMapper = vtk.vtkTextMapper()
enneperTextMapper.SetInput("Enneper")
enneperTextMapper.GetTextProperty().SetJustificationToCentered()
enneperTextMapper.GetTextProperty().SetVerticalJustificationToCentered(
)
enneperTextMapper.GetTextProperty().SetColor(1, 0, 0)
enneperTextMapper.GetTextProperty().SetFontSize(14)
enneperTextActor = vtk.vtkActor2D()
enneperTextActor.SetMapper(enneperTextMapper)
enneperTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
enneperTextActor.GetPositionCoordinate().SetValue(0, -14.5, 0)
# ------------------------------------------------------------
# Create an ellipsoidal surface
# ------------------------------------------------------------
ellipsoid = vtk.vtkParametricEllipsoid()
ellipsoid.SetXRadius(1)
ellipsoid.SetYRadius(0.75)
ellipsoid.SetZRadius(0.5)
ellipsoidSource = vtk.vtkParametricFunctionSource()
ellipsoidSource.SetParametricFunction(ellipsoid)
ellipsoidSource.SetScalarModeToZ()
ellipsoidMapper = vtk.vtkPolyDataMapper()
ellipsoidMapper.SetInputConnection(ellipsoidSource.GetOutputPort())
ellipsoidMapper.SetScalarRange(-0.5, 0.5)
ellipsoidActor = vtk.vtkActor()
ellipsoidActor.SetMapper(ellipsoidMapper)
ellipsoidActor.SetPosition(8, -12, 0)
ellipsoidActor.SetScale(1.5, 1.5, 1.5)
ellipsoidTextMapper = vtk.vtkTextMapper()
ellipsoidTextMapper.SetInput("Ellipsoid")
ellipsoidTextMapper.GetTextProperty().SetJustificationToCentered()
ellipsoidTextMapper.GetTextProperty(
).SetVerticalJustificationToCentered()
ellipsoidTextMapper.GetTextProperty().SetColor(1, 0, 0)
ellipsoidTextMapper.GetTextProperty().SetFontSize(14)
ellipsoidTextActor = vtk.vtkActor2D()
ellipsoidTextActor.SetMapper(ellipsoidTextMapper)
ellipsoidTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
ellipsoidTextActor.GetPositionCoordinate().SetValue(8, -14.5, 0)
# ------------------------------------------------------------
# Create an surface with random hills on it.
# Note that for testing, we will disable the
# random generation of the surfaces. This is
# because random number generators do not
# return the same result on different operating
# systems.
# ------------------------------------------------------------
randomHills = vtk.vtkParametricRandomHills()
randomHills.AllowRandomGenerationOff()
randomHills.GenerateTheHills()
randomHillsSource = vtk.vtkParametricFunctionSource()
randomHillsSource.SetParametricFunction(randomHills)
randomHillsSource.GenerateTextureCoordinatesOn()
randomHillsMapper = vtk.vtkPolyDataMapper()
randomHillsMapper.SetInputConnection(randomHillsSource.GetOutputPort())
randomHillsActor = vtk.vtkActor()
randomHillsActor.SetMapper(randomHillsMapper)
randomHillsActor.SetPosition(16, -14, 0)
randomHillsActor.SetScale(0.2, 0.2, 0.2)
randomHillsActor.SetTexture(texture)
randomHillsTextMapper = vtk.vtkTextMapper()
randomHillsTextMapper.SetInput("Random.Hills")
randomHillsTextMapper.GetTextProperty().SetJustificationToCentered()
randomHillsTextMapper.GetTextProperty(
).SetVerticalJustificationToCentered()
randomHillsTextMapper.GetTextProperty().SetColor(1, 0, 0)
randomHillsTextMapper.GetTextProperty().SetFontSize(14)
randomHillsTextActor = vtk.vtkActor2D()
randomHillsTextActor.SetMapper(randomHillsTextMapper)
randomHillsTextActor.GetPositionCoordinate(
).SetCoordinateSystemToWorld()
randomHillsTextActor.GetPositionCoordinate().SetValue(16, -14.5, 0)
# ------------------------------------------------------------
# Create an Steiner's Roman Surface.
# ------------------------------------------------------------
roman = vtk.vtkParametricRoman()
roman.SetRadius(1.5)
romanSource = vtk.vtkParametricFunctionSource()
romanSource.SetParametricFunction(roman)
romanSource.SetScalarModeToX()
romanMapper = vtk.vtkPolyDataMapper()
romanMapper.SetInputConnection(romanSource.GetOutputPort())
romanActor = vtk.vtkActor()
romanActor.SetMapper(romanMapper)
romanActor.SetPosition(24, -12, 0)
romanTextMapper = vtk.vtkTextMapper()
romanTextMapper.SetInput("Roman")
romanTextMapper.GetTextProperty().SetJustificationToCentered()
romanTextMapper.GetTextProperty().SetVerticalJustificationToCentered()
romanTextMapper.GetTextProperty().SetColor(1, 0, 0)
romanTextMapper.GetTextProperty().SetFontSize(14)
romanTextActor = vtk.vtkActor2D()
romanTextActor.SetMapper(romanTextMapper)
romanTextActor.GetPositionCoordinate().SetCoordinateSystemToWorld()
romanTextActor.GetPositionCoordinate().SetValue(24, -14.5, 0)
# ------------------------------------------------------------
# Create the RenderWindow, Renderer and both Actors
# ------------------------------------------------------------
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
# add actors
ren.AddViewProp(torusActor)
ren.AddViewProp(kleinActor)
ren.AddViewProp(klein2Actor)
ren.AddViewProp(toroidActor)
ren.AddViewProp(superEllipsoidActor)
ren.AddViewProp(mobiusActor)
ren.AddViewProp(splineActor)
ren.AddViewProp(spline2Actor)
ren.AddViewProp(sconicActor)
ren.AddViewProp(boyActor)
ren.AddViewProp(crossCapActor)
ren.AddViewProp(diniActor)
ren.AddViewProp(enneperActor)
ren.AddViewProp(ellipsoidActor)
ren.AddViewProp(randomHillsActor)
ren.AddViewProp(romanActor)
#add text actors
ren.AddViewProp(torusTextActor)
ren.AddViewProp(kleinTextActor)
ren.AddViewProp(fig8KleinTextActor)
ren.AddViewProp(mobiusTextActor)
ren.AddViewProp(superToroidTextActor)
ren.AddViewProp(superEllipsoidTextActor)
ren.AddViewProp(splineTextActor)
ren.AddViewProp(spline2TextActor)
ren.AddViewProp(sconicTextActor)
ren.AddViewProp(boyTextActor)
ren.AddViewProp(crossCapTextActor)
ren.AddViewProp(diniTextActor)
ren.AddViewProp(enneperTextActor)
ren.AddViewProp(ellipsoidTextActor)
ren.AddViewProp(randomHillsTextActor)
ren.AddViewProp(romanTextActor)
ren.SetBackground(0.7, 0.8, 1)
renWin.SetSize(500, 500)
ren.ResetCamera()
ren.GetActiveCamera().Zoom(1.3)
iren.Initialize()
renWin.Render()
#iren.Start()
img_file = "TestParametricFunctions.png"
vtk.test.Testing.compareImage(
iren.GetRenderWindow(),
vtk.test.Testing.getAbsImagePath(img_file),
threshold=25)
vtk.test.Testing.interact()