def clipping_plane(v, interactor, event):
if interactor.GetKeyCode() == "c":
planew = vtk.vtkImplicitPlaneWidget()
planew.SetInteractor(v.getInteractor())
plane = vtk.vtkPlane()
planew.GetPlane(plane)
planew.PlaceWidget()
v.volume_mapper.AddClippingPlane(plane)
v.plane = plane
v.planew = planew
def BuildView(self):
if not self.vmtkRenderer:
self.vmtkRenderer = vmtkrenderer.vmtkRenderer()
self.vmtkRenderer.Initialize()
self.OwnRenderer = 1
self.vmtkRenderer.RegisterScript(self)
self.PlaneWidget = vtk.vtkImplicitPlaneWidget()
if self.Actor != None:
self.vmtkRenderer.Renderer.RemoveActor(self.Actor)
if self.Mesh != None:
self.MeshCutFilter = vtk.vtkCutter()
self.MeshCutFilter.SetInputData(self.Mesh)
cutPlane = vtk.vtkPlane()
self.PlaneWidget.GetPlane(cutPlane)
self.MeshCutFilter.SetCutFunction(cutPlane)
self.MeshCutFilter.Update()
self.Surface = self.MeshCutFilter.GetOutput()
self.PlaneWidget.AddObserver("StartInteractionEvent",
self.StartPlaneCallback)
self.PlaneWidget.AddObserver("EndInteractionEvent",
self.EndPlaneCallback)
mapper = vtk.vtkDataSetMapper()
mapper.SetInputData(self.Mesh)
self.Actor = vtk.vtkActor()
self.Actor.SetMapper(mapper)
self.vmtkRenderer.Renderer.AddActor(self.Actor)
self.Actor.GetProperty().SetOpacity(self.Opacity)
self.PlaneWidget.SetInteractor(
self.vmtkRenderer.RenderWindowInteractor)
self.PlaneWidget.SetPlaceFactor(1.25)
self.PlaneWidget.DrawPlaneOn()
self.PlaneWidget.GetPlaneProperty().SetOpacity(0.1)
self.PlaneWidget.SetProp3D(self.Actor)
self.PlaneWidget.PlaceWidget()
self.PlaneWidget.SetOrigin(self.Actor.GetCenter())
self.PlaneWidget.On()
if (self.Display == 1):
self.vmtkRenderer.Render()
if self.OwnRenderer:
self.vmtkRenderer.Deallocate()
def BuildView(self):
if not self.vmtkRenderer:
self.vmtkRenderer = vmtkrenderer.vmtkRenderer()
self.vmtkRenderer.Initialize()
self.OwnRenderer = 1
self.vmtkRenderer.RegisterScript(self)
self.PlaneWidget = vtk.vtkImplicitPlaneWidget()
if self.Actor != None:
self.vmtkRenderer.Renderer.RemoveActor(self.Actor)
if self.Mesh != None:
self.MeshCutFilter = vtk.vtkCutter()
self.MeshCutFilter.SetInputData(self.Mesh)
cutPlane = vtk.vtkPlane()
self.PlaneWidget.GetPlane(cutPlane)
self.MeshCutFilter.SetCutFunction(cutPlane)
self.MeshCutFilter.Update()
self.Surface = self.MeshCutFilter.GetOutput()
self.PlaneWidget.AddObserver("StartInteractionEvent",self.StartPlaneCallback)
self.PlaneWidget.AddObserver("EndInteractionEvent",self.EndPlaneCallback)
mapper = vtk.vtkDataSetMapper()
mapper.SetInputData(self.Mesh)
self.Actor = vtk.vtkActor()
self.Actor.SetMapper(mapper)
self.vmtkRenderer.Renderer.AddActor(self.Actor)
self.Actor.GetProperty().SetOpacity(self.Opacity)
self.PlaneWidget.SetInteractor(self.vmtkRenderer.RenderWindowInteractor)
self.PlaneWidget.SetPlaceFactor(1.25)
self.PlaneWidget.DrawPlaneOn()
self.PlaneWidget.GetPlaneProperty().SetOpacity(0.1)
self.PlaneWidget.SetProp3D(self.Actor)
self.PlaneWidget.PlaceWidget()
self.PlaneWidget.SetOrigin(self.Actor.GetCenter())
self.PlaneWidget.On()
if (self.Display == 1):
self.vmtkRenderer.Render()
if self.OwnRenderer:
self.vmtkRenderer.Deallocate()
def createPlaneWidget(ugrid):
planeWidget = vtk.vtkImplicitPlaneWidget()
planeWidget.SetPlaceFactor(1.25)
planeWidget.SetInput(ugrid)
planeWidget.PlaceWidget(ugrid.GetBounds())
planeWidget.NormalToXAxisOn()
planeWidget.DrawPlaneOff()
planeWidget.TubingOn()
planeWidget.OutlineTranslationOff()
planeWidget.ScaleEnabledOff()
planeWidget.GetNormalProperty().SetColor(.6, .1, 1)
planeWidget.GetSelectedNormalProperty().SetColor(.4, .4, 4)
planeWidget.GetEdgesProperty().SetLineWidth(.6)
planeWidget.SetHandleSize(.01)
return planeWidget
def update_pipeline(self):
if self.isoActor is not None:
self.renderer.RemoveActor(self.isoActor)
pipe = self.marchingCubes
if self.useConnect:
self.connect.SetInput( pipe.GetOutput())
pipe = self.connect
if self.useDecimate:
self.deci.SetInput( pipe.GetOutput())
pipe = self.deci
if 0:
plane = vtk.vtkPlane()
clipper = vtk.vtkClipPolyData()
polyData = pipe.GetOutput()
clipper.SetInput(polyData)
clipper.SetClipFunction(plane)
clipper.InsideOutOff()
pipe = clipper
def callback(pw, event):
pw.GetPlane(plane)
self.interactor.Render()
self.planeWidget = vtk.vtkImplicitPlaneWidget()
self.planeWidget.SetInteractor(self.interactor)
self.planeWidget.On()
self.planeWidget.SetPlaceFactor(1.0)
self.planeWidget.SetInput(polyData)
self.planeWidget.PlaceWidget()
self.planeWidget.AddObserver("InteractionEvent", callback)
self.isoMapper = vtk.vtkPolyDataMapper()
self.isoMapper.SetInput(pipe.GetOutput())
self.isoMapper.ScalarVisibilityOff()
self.isoActor = vtk.vtkActor()
self.isoActor.SetMapper(self.isoMapper)
self.renderer.AddActor(self.isoActor)
self.update_properties()
def update_pipeline(self):
if self.isoActor is not None:
self.renderer.RemoveActor(self.isoActor)
pipe = self.marchingCubes
if self.useConnect:
self.connect.SetInput( pipe.GetOutput())
pipe = self.connect
if self.useDecimate:
self.deci.SetInput( pipe.GetOutput())
pipe = self.deci
if 0:
plane = vtk.vtkPlane()
clipper = vtk.vtkClipPolyData()
polyData = pipe.GetOutput()
clipper.SetInput(polyData)
clipper.SetClipFunction(plane)
clipper.InsideOutOff()
pipe = clipper
def callback(pw, event):
pw.GetPlane(plane)
self.interactor.Render()
self.planeWidget = vtk.vtkImplicitPlaneWidget()
self.planeWidget.SetInteractor(self.interactor)
self.planeWidget.On()
self.planeWidget.SetPlaceFactor(1.0)
self.planeWidget.SetInput(polyData)
self.planeWidget.PlaceWidget()
self.planeWidget.AddObserver("InteractionEvent", callback)
self.isoMapper = vtk.vtkPolyDataMapper()
self.isoMapper.SetInput(pipe.GetOutput())
self.isoMapper.ScalarVisibilityOff()
self.isoActor = vtk.vtkActor()
self.isoActor.SetMapper(self.isoMapper)
self.renderer.AddActor(self.isoActor)
self.update_properties()
def makePlaneWidget(vtkObj,iren):
"""Make an interactive planeWidget"""
# Associate the line widget with the interactor
planeWidget = vtk.vtkImplicitPlaneWidget()
planeWidget.SetInteractor(iren)
planeWidget.SetInput(vtkObj )
planeWidget.SetPlaceFactor(1.05) # Increases the size of the widget bounds
planeWidget.PlaceWidget(vtkObj.GetBounds())
b1,b2,b3 = vtkObj.GetBounds()[::2]
planeWidget.SetOrigin(b1,b2,b3)
#planeWidget.AddObserver("InteractionEvent", movePlane)
planeWidget.SetOutsideBounds(0) # Not allow the widget to move outside the input bounds
planeWidget.SetScaleEnabled(0) # Ability to scale with the mouse
planeWidget.SetEnabled(1) # Starts the widget
planeWidget.SetOutlineTranslation(0) # Abiltiy to move the widget with the mouse
planeWidget.GetPlaneProperty().SetOpacity(0.1)
return planeWidget
def makePlaneWidget(vtkObj,iren,plane,actor):
"""Make an interactive planeWidget"""
# Callback function
def movePlane(obj, events):
obj.GetPlane(intPlane)
intActor.VisibilityOn()
# Associate the line widget with the interactor
planeWidget = vtk.vtkImplicitPlaneWidget()
planeWidget.SetInteractor(iren)
planeWidget.SetPlaceFactor(1.25)
planeWidget.SetInput(vtkObj)
planeWidget.PlaceWidget()
#planeWidget.AddObserver("InteractionEvent", movePlane)
planeWidget.SetScaleEnabled(0)
planeWidget.SetEnabled(1)
planeWidget.SetOutlineTranslation(0)
planeWidget.GetPlaneProperty().SetOpacity(0.1)
return planeWidget
def initPlaneWidget(self):
"""Sets up vtkImplicitPlaneWidget for plane selection.
Sets also up necessary actor and mapper.
Returns:
vtk.vtkImplicitPlaneWidget: Widget.
"""
# Initialize a plane widget
self.planeWidget = vtk.vtkImplicitPlaneWidget()
self.planeWidget.SetInteractor(self.iren)
self.planeWidget.SetPlaceFactor(1.25)
self.planeWidget.SetInput(self.grid)
self.planeWidget.PlaceWidget()
# Callback connection of interaction event
self.planeWidget.AddObserver("InteractionEvent", self.StartPlaneCallback)
self.planeWidget.AddObserver("EndInteractionEvent",self.EndPlaneCallback)
# Mapper
self.selectMapper = vtk.vtkDataSetMapper()
self.selectMapper.SetInput(self.grid)
# Actor
self.selectActor = vtk.vtkLODActor()
self.selectActor.SetMapper(self.selectMapper)
self.selectActor.GetProperty().SetColor(0, 1, 0)
self.selectActor.VisibilityOff()
self.selectActor.SetScale(1.01, 1.01, 1.01)
self.ren.AddActor(self.selectActor)
# Place widget at right position
self.planeWidget.SetNormal(0,0,1)
self.planeWidget.SetOrigin(self.grid.GetCenter())
return self.planeWidget
def initPlaneWidget(self):
"""Sets up vtkImplicitPlaneWidget for plane selection.
Sets also up necessary actor and mapper.
Returns:
vtk.vtkImplicitPlaneWidget: Widget.
"""
# Initialize a plane widget
self.planeWidget = vtk.vtkImplicitPlaneWidget()
self.planeWidget.SetInteractor(self.iren)
self.planeWidget.SetPlaceFactor(1.25)
self.planeWidget.SetInput(self.grid)
self.planeWidget.PlaceWidget()
# Callback connection of interaction event
self.planeWidget.AddObserver("InteractionEvent",
self.StartPlaneCallback)
self.planeWidget.AddObserver("EndInteractionEvent",
self.EndPlaneCallback)
# Mapper
self.selectMapper = vtk.vtkDataSetMapper()
self.selectMapper.SetInput(self.grid)
# Actor
self.selectActor = vtk.vtkLODActor()
self.selectActor.SetMapper(self.selectMapper)
self.selectActor.GetProperty().SetColor(0, 1, 0)
self.selectActor.VisibilityOff()
self.selectActor.SetScale(1.01, 1.01, 1.01)
self.ren.AddActor(self.selectActor)
# Place widget at right position
self.planeWidget.SetNormal(0, 0, 1)
self.planeWidget.SetOrigin(self.grid.GetCenter())
return self.planeWidget
def Plane(self):
if(self.planew != None):
self.info_text.appendPlainText (_fromUtf8("Nelze použít více rovin najednou. Nejdříve proveďte řez"))
else:
planeWidget = vtk.vtkImplicitPlaneWidget()
# předaní interaktoru objektu roviny
planeWidget.SetInteractor(self.iren)
# nastavení velikosti prostoru ve kterém se může rovina pohybovat
planeWidget.SetPlaceFactor(1.5)
# nastavení vstupních dat
planeWidget.SetInput(surface.GetOutput())
planeWidget.PlaceWidget()
planeWidget.TubingOff()
planeWidget.OutsideBoundsOff()
planeWidget.ScaleEnabledOff()
planeWidget.OutlineTranslationOff()
planeWidget.AddObserver("InteractionEvent", self.Cutter)
planeWidget.On()
self.planew = planeWidget
self.planew.SetNormal(2.0,0.0,0.0)
def Plane(self):
if(self.planew != None):
self.info_text.appendPlainText (_fromUtf8("Nelze použít více rovin najednou. Nejdříve proveďte řez"))
else:
planeWidget = vtk.vtkImplicitPlaneWidget()
# předaní interaktoru objektu roviny
planeWidget.SetInteractor(self.iren)
# nastavení velikosti prostoru ve kterém se může rovina pohybovat
planeWidget.SetPlaceFactor(1.5)
# nastavení vstupních dat
planeWidget.SetInput(surface.GetOutput())
planeWidget.PlaceWidget()
planeWidget.TubingOff()
planeWidget.OutsideBoundsOff()
planeWidget.ScaleEnabledOff()
planeWidget.OutlineTranslationOff()
planeWidget.AddObserver("InteractionEvent", self.Cutter)
planeWidget.On()
self.planew = planeWidget
self.planew.SetNormal(2.0,0.0,0.0)
def plot(self, struct):
# creates self. data1, legend, filename, fieldname, dim, has_field, tracker, revision
if not self.call_config(struct):
return
# creates self.src
if not self.call_src():
return
# postponed widget processing
if self.has_field:
self.add_scalarbar_1()
self.add_abs_rel_1()
self.add_outline_1()
self.add_plane_1()
self.add_sw_1()
self.add_opacity_1(selection=0) # Opacity: 100%/75%/50%/25%/0%
# vector
self.plane = vtk.vtkPlane()
self.origin = self.src.GetOutput().GetCenter()
print 'center', self.origin
# self.plane.SetOrigin(self.origin) #xml
# self.plane.SetNormal(1, 1, 1) #xml
self.clipper = vtk.vtkExtractGeometry()
self.clipper.SetInputConnection(self.src.GetOutputPort())
self.clipper.SetImplicitFunction(self.plane)
self.clipper.ExtractInsideOn() # +/-
# self.clipper.ExtractBoundaryCellsOn() # inclue as que estan parcialmente dentro
# self.clipper.ExtractOnlyBoundaryCellsOn()
self.pdM = vtk.vtkDataSetMapper()
self.pdM.SetInputConnection(self.clipper.GetOutputPort())
if self.has_field:
self.pdM.ScalarVisibilityOn()
else:
self.pdM.ScalarVisibilityOff()
self.scalarrange.local_set(self.src.GetOutput().GetScalarRange())
# reverse rainbow [red->blue] -> [blue->red]
look = self.pdM.GetLookupTable()
# self.add_scalarbar_2(look)
self.add_outline_2(self.src)
self.cutA = vtk.vtkActor()
self.cutA.SetMapper(self.pdM)
self.cutA.GetProperty().SetRepresentationToSurface()
self.cutA.GetProperty().SetColor(Plot.mesh_color)
self.rens[0].AddActor(self.cutA)
# poñendo a scalarbar aquí e non antes, queda ben dibuxada desde o primeiro (non negra)
if self.has_field:
self.add_scalarbar_2(look)
self.add_abs_rel_2(self.src, self.clipper)
self.add_sw_2(self.cutA)
self.add_opacity_2([self.cutA]) # Opacity: 100%/75%/50%/25%/0%
# mover plano interactivamente
#self.planeI = vtk.vtkPlaneWidget()
self.planeI = vtk.vtkImplicitPlaneWidget()
seeds = vtk.vtkPolyData()
if vtk.vtkVersion.GetVTKMajorVersion() < 6:
self.planeI.SetInput(self.src.GetOutput())
else:
self.planeI.SetInputConnection(self.src.GetOutputPort())
self.add_plane_2(self.planeI)
self.planeI.SetOrigin(self.origin[0], self.origin[1], self.origin[2])
#self.planeI.SetResolution(20)
#planeWidget.NormalToXAxisOn()
#planeWidget.SetRepresentationToOutline()
#self.planeI.PlaceWidget()
self.planeI.GetPolyData(seeds)
self.planeI.SetPlaceFactor(1.0) # factor * bounds
self.planeI.OutsideBoundsOn() # not on PlaneWidget
self.planeI.OutlineTranslationOff()
self.planeI.DrawPlaneOff()
self.planeI.ScaleEnabledOff()
self.planeI.PlaceWidget()
#self.planeI.PlaceWidget(self.src.GetOutput().GetBounds())
self.planeI.AddObserver("EndInteractionEvent", self.event_end)
self.set_iren()
self.planeI.SetInteractor(self.iren)
self.planeI.On()
# self.lineI.AddObserver("StartInteractionEvent", self.event_start)
# self.lineI.AddObserver("InteractionEvent", self.event)
# self.lineI.AddObserver("EndInteractionEvent", self.event_end)
# /mover plano interactivamente
if interactive2 and self.has_field:
#self.set_iren() #necesario ^
self.clicker = ClickLabel.ClickLabel()
self.clicker.set_point_cell(self.data1.get('fielddomain'))
self.clicker.set_objects(self.clipper, self.rens[0], self.iren,
self.widget)
self.clicker.set_props([self.cutA])
self.clicker.setup()
o = self.planeI.GetOrigin()
n = self.planeI.GetNormal()
print 'initial: o,n', o, n
self.set_params(struct, o, n) # not force first time
self.copy_params(struct)
self.done = True
renderer.RemoveViewProp(actoriso)
# Clip the data
cf = vtk.vtkClipDataSet()
# Set the clipping plane
plane = vtk.vtkPlane()
cf.SetClipFunction(plane)
print plane
# Set the plane origin
plane.SetOrigin(560000, 5120000, 2000)
# Connect the pipeline
cf.SetInputConnection(warp.GetOutputPort())
mapper.SetInputConnection(cf.GetOutputPort())
# Step 8 - Clipping Widget interaction
# Creates an implicit plane widget
widget = vtk.vtkImplicitPlaneWidget()
widget.PlaceWidget(warp.GetOutput().GetBounds())
widget.SetOrigin([plane.GetOrigin()[x] for x in 0, 1, 2])
widget.SetNormal([plane.GetNormal()[x] for x in 0, 1, 2])
widget.SetInteractor(iren)
# Connects the interaction event to the plane
def cb(obj, event):
global plane
obj.GetPlane(plane)
widget.AddObserver("InteractionEvent", cb)
widget.SetEnabled(1)
widget.DrawPlaneOn()
import misc
'''
Používané globální proměnné
'''
plane = vtk.vtkPlane()
normal = None
coordinates = None
iren = vtk.vtkRenderWindowInteractor()
surface = vtk.vtkDataSetSurfaceFilter()
app = QApplication(sys.argv)
label = QtGui.QLabel()
myLayout = QGridLayout()
widget = vtk.vtkSphereSource()
planeWidget = vtk.vtkImplicitPlaneWidget()
'''
Kód grafického editoru resekční linie. Tento kód byl automaticky vygenerován pomocí programu Qt Designer
'''
##------------------------------------------------------------------------------------------
try:
_fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
def _fromUtf8(s):
return s
try:
_encoding = QtGui.QApplication.UnicodeUTF8
def _translate(context, text, disambig):
def BuildView(self):
if not self.vmtkRenderer:
self.vmtkRenderer = vmtkrenderer.vmtkRenderer()
self.vmtkRenderer.Initialize()
self.OwnRenderer = 1
if self.Actor != None:
self.vmtkRenderer.Renderer.RemoveActor(self.Actor)
if self.ScalarBarActor != None:
self.vmtkRenderer.Renderer.RemoveActor(self.ScalarBarActor)
if self.Mesh != None:
self.InitialMesh = self.Mesh
self.DisplayMesh = self.Mesh
mapper = vtk.vtkDataSetMapper()
mapper.SetInputData(self.DisplayMesh)
array = None
if (self.ArrayName != ''):
if self.DisplayCellData == 0:
self.Mesh.GetPointData().SetActiveScalars(self.ArrayName)
array = self.Mesh.GetPointData().GetScalars()
else:
self.Mesh.GetCellData().SetActiveScalars(self.ArrayName)
array = self.Mesh.GetCellData().GetScalars()
mapper.SetScalarModeToUseCellData()
if (array != None):
if (self.ScalarRange[1] > self.ScalarRange[0]):
mapper.SetScalarRange(self.ScalarRange)
else:
mapper.SetScalarRange(array.GetRange(0))
if (self.Grayscale == 1):
lut = vtk.vtkLookupTable()
lut.SetValueRange(0.0, 1.0)
lut.SetSaturationRange(0.0, 0.0)
mapper.SetLookupTable(lut)
self.Actor = vtk.vtkActor()
self.Actor.SetMapper(mapper)
if (self.Color[0] >= 0.0):
self.Actor.GetProperty().SetColor(self.Color)
if (self.FlatInterpolation == 1):
self.Actor.GetProperty().SetInterpolationToFlat()
self.Actor.GetProperty().SetOpacity(self.Opacity)
self.vmtkRenderer.Renderer.AddActor(self.Actor)
if (self.Legend == 1) & (self.Actor != None):
self.ScalarBarActor = vtk.vtkScalarBarActor()
self.ScalarBarActor.SetLookupTable(
self.Actor.GetMapper().GetLookupTable())
self.ScalarBarActor.GetLabelTextProperty().ItalicOff()
self.ScalarBarActor.GetLabelTextProperty().BoldOff()
self.ScalarBarActor.GetLabelTextProperty().ShadowOff()
## self.ScalarBarActor.GetLabelTextProperty().SetColor(0.0,0.0,0.0)
self.ScalarBarActor.SetLabelFormat('%.2f')
self.vmtkRenderer.Renderer.AddActor(self.ScalarBarActor)
#self.vmtkRenderer.RenderWindowInteractor.AddObserver("KeyPressEvent", self.KeyPressed)
self.vmtkRenderer.AddKeyBinding('i', 'Interact.',
self.InteractCallback)
self.vmtkRenderer.AddKeyBinding('c', 'Clip.', self.ClipCallback)
self.vmtkRenderer.AddKeyBinding('e', 'Extract.', self.ExtractCallback)
self.vmtkRenderer.AddKeyBinding('n', 'Show clipped area.',
self.NCallback)
self.vmtkRenderer.AddKeyBinding('d', 'Switch clipped/unclipped area.',
self.DCallback)
self.vmtkRenderer.AddKeyBinding('t', 'Redo.', self.TCallback)
self.vmtkRenderer.AddKeyBinding('u', 'Undo.', self.UndoCallback)
self.PlaneWidget = vtk.vtkImplicitPlaneWidget()
self.PlaneWidget.SetInteractor(
self.vmtkRenderer.RenderWindowInteractor)
self.PlaneWidget.SetPlaceFactor(1.25)
self.PlaneWidget.DrawPlaneOff()
self.PlaneWidget.SetProp3D(self.Actor)
self.PlaneWidget.PlaceWidget()
#Work around bug/strange behaviour in vtk
self.PlaneWidget.SetOrigin(self.Actor.GetCenter())
if (self.Display == 1):
self.vmtkRenderer.Render()
self.Mesh = self.InitialMesh
if self.OwnRenderer:
self.vmtkRenderer.Deallocate()
def add_plane_widget(self,
callback,
normal='x',
origin=None,
bounds=None,
factor=1.25,
color=None,
assign_to_axis=None,
tubing=False,
outline_translation=False,
origin_translation=True,
implicit=True,
pass_widget=False,
test_callback=True):
"""Add a plane widget to the scene.
This is useless without a callback function. You can pass a callable
function that takes two arguments, the normal and origin of the plane
in that order output from this widget, and performs a task with that
plane.
Parameters
----------
callback : callable
The method called every time the plane is updated. Takes two
arguments, the normal and origin of the plane in that order.
normal : str or tuple(float)
The starting normal vector of the plane
origin : tuple(float)
The starting coordinate of the center of the place
bounds : tuple(float)
Length 6 tuple of the bounding box where the widget is placed.
factor : float, optional
An inflation factor to expand on the bounds when placing
color : string or 3 item list, optional, defaults to white
Either a string, rgb list, or hex color string.
assign_to_axis : str or int
Assign the normal of the plane to be parallel with a given axis:
options are (0, 'x'), (1, 'y'), or (2, 'z').
tubing : bool
When using an implicit plane wiget, this controls whether or not
tubing is shown around the plane's boundaries.
outline_translation : bool
If ``False``, the plane widget cannot be translated and is strictly
placed at the given bounds. Only valid when using an implicit
plane.
origin_translation : bool
If ``False``, the plane widget cannot be translated by its origin
and is strictly placed at the given origin. Only valid when using
an implicit plane.
implicit : bool
When ``True``, a ``vtkImplicitPlaneWidget`` is ued and when
``False``, a ``vtkPlaneWidget`` is used.
pass_widget : bool
If true, the widget will be passed as the last argument of the
callback
test_callback: bool
if true, run the callback function after the widget is created.
"""
if hasattr(self, 'notebook') and self.notebook:
raise AssertionError(
'Plane widget not available in notebook plotting')
if not hasattr(self, 'iren'):
raise AttributeError(
'Widgets must be used with an intereactive renderer. No off screen plotting.'
)
if not hasattr(self, "plane_widgets"):
self.plane_widgets = []
if origin is None:
origin = self.center
if bounds is None:
bounds = self.bounds
if isinstance(normal, str):
normal = NORMALS[normal.lower()]
if color is None:
color = rcParams['font']['color']
def _the_callback(widget, event_id):
the_plane = vtk.vtkPlane()
widget.GetPlane(the_plane)
normal = the_plane.GetNormal()
origin = the_plane.GetOrigin()
if hasattr(callback, '__call__'):
if pass_widget:
try_callback(callback, normal, origin, widget)
else:
try_callback(callback, normal, origin)
return
if implicit:
plane_widget = vtk.vtkImplicitPlaneWidget()
plane_widget.GetNormalProperty().SetColor(parse_color(color))
plane_widget.GetOutlineProperty().SetColor(parse_color(color))
plane_widget.GetOutlineProperty().SetColor(parse_color(color))
plane_widget.SetTubing(tubing)
plane_widget.SetOutlineTranslation(outline_translation)
plane_widget.SetOriginTranslation(origin_translation)
_start_interact = lambda plane_widget, event: plane_widget.SetDrawPlane(
True)
_stop_interact = lambda plane_widget, event: plane_widget.SetDrawPlane(
False)
plane_widget.SetDrawPlane(False)
plane_widget.AddObserver(vtk.vtkCommand.StartInteractionEvent,
_start_interact)
plane_widget.AddObserver(vtk.vtkCommand.EndInteractionEvent,
_stop_interact)
plane_widget.SetPlaceFactor(factor)
plane_widget.PlaceWidget(bounds)
plane_widget.SetOrigin(origin)
else:
# Position of the small plane
source = vtk.vtkPlaneSource()
source.SetNormal(normal)
source.SetCenter(origin)
source.SetPoint1(origin[0] + (bounds[1] - bounds[0]) * 0.01,
origin[1] - (bounds[3] - bounds[2]) * 0.01,
origin[2])
source.SetPoint2(origin[0] - (bounds[1] - bounds[0]) * 0.01,
origin[1] + (bounds[3] - bounds[2]) * 0.01,
origin[2])
source.Update()
plane_widget = vtk.vtkPlaneWidget()
plane_widget.SetHandleSize(.01)
# Position of the widget
plane_widget.SetInputData(source.GetOutput())
plane_widget.SetRepresentationToOutline()
plane_widget.SetPlaceFactor(factor)
plane_widget.PlaceWidget(bounds)
plane_widget.SetCenter(origin) # Necessary
plane_widget.GetPlaneProperty().SetColor(
parse_color(color)) # self.C_LOT[fn])
plane_widget.GetHandleProperty().SetColor(parse_color(color))
plane_widget.GetPlaneProperty().SetOpacity(0.5)
plane_widget.SetInteractor(self.iren)
plane_widget.SetCurrentRenderer(self.renderer)
if assign_to_axis:
# TODO: how do we now disable/hide the arrow?
if assign_to_axis in [0, "x", "X"]:
plane_widget.NormalToXAxisOn()
plane_widget.SetNormal(NORMALS["x"])
elif assign_to_axis in [1, "y", "Y"]:
plane_widget.NormalToYAxisOn()
plane_widget.SetNormal(NORMALS["y"])
elif assign_to_axis in [2, "z", "Z"]:
plane_widget.NormalToZAxisOn()
plane_widget.SetNormal(NORMALS["z"])
else:
raise RuntimeError("assign_to_axis not understood")
else:
plane_widget.SetNormal(normal)
plane_widget.Modified()
plane_widget.UpdatePlacement()
plane_widget.On()
plane_widget.AddObserver(vtk.vtkCommand.EndInteractionEvent,
_the_callback)
if test_callback:
_the_callback(plane_widget, None) # Trigger immediate update
self.plane_widgets.append(plane_widget)
return plane_widget
def BuildView(self):
if not self.vmtkRenderer:
self.vmtkRenderer = vmtkrenderer.vmtkRenderer()
self.vmtkRenderer.Initialize()
self.OwnRenderer = 1
if self.Actor != None:
self.vmtkRenderer.Renderer.RemoveActor(self.Actor)
if self.ScalarBarActor != None:
self.vmtkRenderer.Renderer.RemoveActor(self.ScalarBarActor)
if self.Mesh != None:
self.InitialMesh = self.Mesh
self.DisplayMesh = self.Mesh
mapper = vtk.vtkDataSetMapper()
mapper.SetInputData(self.DisplayMesh)
array = None
if (self.ArrayName != ''):
if self.DisplayCellData == 0:
self.Mesh.GetPointData().SetActiveScalars(self.ArrayName)
array = self.Mesh.GetPointData().GetScalars()
else:
self.Mesh.GetCellData().SetActiveScalars(self.ArrayName)
array = self.Mesh.GetCellData().GetScalars()
mapper.SetScalarModeToUseCellData()
if (array != None):
if (self.ScalarRange[1] > self.ScalarRange[0]):
mapper.SetScalarRange(self.ScalarRange)
else:
mapper.SetScalarRange(array.GetRange(0))
if (self.Grayscale == 1):
lut = vtk.vtkLookupTable()
lut.SetValueRange(0.0,1.0)
lut.SetSaturationRange(0.0,0.0)
mapper.SetLookupTable(lut)
self.Actor = vtk.vtkActor()
self.Actor.SetMapper(mapper)
if (self.Color[0] >= 0.0):
self.Actor.GetProperty().SetColor(self.Color)
if (self.FlatInterpolation == 1):
self.Actor.GetProperty().SetInterpolationToFlat()
self.Actor.GetProperty().SetOpacity(self.Opacity)
self.vmtkRenderer.Renderer.AddActor(self.Actor)
if (self.Legend == 1) & (self.Actor != None):
self.ScalarBarActor = vtk.vtkScalarBarActor()
self.ScalarBarActor.SetLookupTable(self.Actor.GetMapper().GetLookupTable())
self.ScalarBarActor.GetLabelTextProperty().ItalicOff()
self.ScalarBarActor.GetLabelTextProperty().BoldOff()
self.ScalarBarActor.GetLabelTextProperty().ShadowOff()
## self.ScalarBarActor.GetLabelTextProperty().SetColor(0.0,0.0,0.0)
self.ScalarBarActor.SetLabelFormat('%.2f')
self.vmtkRenderer.Renderer.AddActor(self.ScalarBarActor)
#self.vmtkRenderer.RenderWindowInteractor.AddObserver("KeyPressEvent", self.KeyPressed)
self.vmtkRenderer.AddKeyBinding('i','Interact.',self.InteractCallback)
self.vmtkRenderer.AddKeyBinding('c','Clip.',self.ClipCallback)
self.vmtkRenderer.AddKeyBinding('e','Extract.',self.ExtractCallback)
self.vmtkRenderer.AddKeyBinding('n','Show clipped area.',self.NCallback)
self.vmtkRenderer.AddKeyBinding('d','Switch clipped/unclipped area.',self.DCallback)
self.vmtkRenderer.AddKeyBinding('t','Redo.',self.TCallback)
self.vmtkRenderer.AddKeyBinding('u','Undo.',self.UndoCallback)
self.PlaneWidget = vtk.vtkImplicitPlaneWidget()
self.PlaneWidget.SetInteractor(self.vmtkRenderer.RenderWindowInteractor)
self.PlaneWidget.SetPlaceFactor(1.25)
self.PlaneWidget.DrawPlaneOff()
self.PlaneWidget.SetProp3D(self.Actor)
self.PlaneWidget.PlaceWidget()
#Work around bug/strange behaviour in vtk
self.PlaneWidget.SetOrigin(self.Actor.GetCenter())
if (self.Display == 1):
self.vmtkRenderer.Render()
self.Mesh = self.InitialMesh
if self.OwnRenderer:
self.vmtkRenderer.Deallocate()
def _createImplicit(self, implicitType, implicitName, bounds, primaryInput):
if implicitType in self._implicitTypes and \
implicitName not in self._implicitsDict:
pi = primaryInput
rwi = self.slice3dVWR.threedFrame.threedRWI
implicitInfoBounds = None
if implicitType == "Plane":
implicitWidget = vtk.vtkImplicitPlaneWidget()
implicitWidget.SetPlaceFactor(1.25)
if pi != None:
implicitWidget.SetInput(pi)
implicitWidget.PlaceWidget()
b = pi.GetBounds()
implicitWidget.SetOrigin(b[0], b[2], b[4])
implicitInfoBounds = b
elif bounds != None:
implicitWidget.PlaceWidget(bounds)
implicitWidget.SetOrigin(bounds[0], bounds[2], bounds[4])
implicitInfoBounds = bounds
else:
# this can never happen
pass
implicitWidget.SetInteractor(rwi)
implicitWidget.On()
# create the implicit function
implicitFunction = vtk.vtkPlane()
# sync it to the initial widget
self._syncPlaneFunctionToWidget(implicitWidget)
# add it to the output
self.outputImplicitFunction.AddFunction(implicitFunction)
# now add an observer to the widget
def observerImplicitPlaneWidget(widget, eventName):
# sync it to the initial widget
ret = self._syncPlaneFunctionToWidget(widget)
# also select the correct grid row
if ret != None:
name, ii = ret
row = self.findGridRowByName(name)
if row >= 0:
self._grid.SelectRow(row)
oId = implicitWidget.AddObserver('EndInteractionEvent',
observerImplicitPlaneWidget)
elif implicitType == "Sphere":
implicitWidget = vtk.vtkSphereWidget()
implicitWidget.SetPlaceFactor(1.25)
implicitWidget.TranslationOn()
implicitWidget.ScaleOn()
#implicitWidget.HandleVisibilityOn()
if pi != None:
implicitWidget.SetInput(pi)
implicitWidget.PlaceWidget()
b = pi.GetBounds()
implicitInfoBounds = b
#implicitWidget.SetOrigin(b[0], b[2], b[4])
elif bounds != None:
implicitWidget.PlaceWidget(bounds)
implicitInfoBounds = bounds
#implicitWidget.SetOrigin(bounds[0], bounds[2], bounds[4])
else:
# this can never happen
pass
implicitWidget.SetInteractor(rwi)
implicitWidget.On()
# create the implicit function
implicitFunction = vtk.vtkSphere()
# sync it to the initial widget
self._syncSphereFunctionToWidget(implicitWidget)
# add it to the output
self.outputImplicitFunction.AddFunction(implicitFunction)
# now add an observer to the widget
def observerImplicitSphereWidget(widget, eventName):
# sync it to the initial widget
ret = self._syncSphereFunctionToWidget(widget)
# also select the correct grid row
if ret != None:
name, ii = ret
row = self.findGridRowByName(name)
if row >= 0:
self._grid.SelectRow(row)
oId = implicitWidget.AddObserver('EndInteractionEvent',
observerImplicitSphereWidget)
if implicitWidget:
# set the priority so it gets interaction before the
# ImagePlaneWidget. 3D widgets have default priority 0.5,
# so we assign our widgets just a tad higher. (voiwidget
# has 0.6 for example)
# NB: in a completely weird twist of events, only slices
# added AFTER this widget will act like they have lower
# priority. The initial slice still takes events from us!
implicitWidget.SetPriority(0.7)
# add to our internal thingy
ii = implicitInfo()
ii.name = implicitName
ii.type = implicitType
ii.widget = implicitWidget
ii.bounds = implicitInfoBounds
ii.oId = oId
ii.function = implicitFunction
self._implicitsDict[implicitName] = ii
# now add to the grid
nrGridRows = self._grid.GetNumberRows()
self._grid.AppendRows()
self._grid.SetCellValue(nrGridRows, self._gridNameCol,
implicitName)
self._grid.SetCellValue(nrGridRows, self._gridTypeCol,
implicitType)
# set the relevant cells up for Boolean
for col in [self._gridEnabledCol]:
self._grid.SetCellRenderer(nrGridRows, col,
wx.grid.GridCellBoolRenderer())
self._grid.SetCellAlignment(nrGridRows, col,
wx.ALIGN_CENTRE,
wx.ALIGN_CENTRE)
self._setImplicitEnabled(ii.name, True)
def testSlice(self):
global plane, filter, args
writefiles = "SaveData" in args
renderer = vtk.vtkRenderer()
renwin = vtk.vtkRenderWindow()
renwin.AddRenderer(renderer)
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renwin)
renwin.Render()
if "GPURender" in args:
vtk.vtkPistonMapper.InitCUDAGL(renwin)
src = vtk.vtkImageMandelbrotSource()
src.SetWholeExtent(0, 20, 0, 20, 0, 20)
#scale and bias until piston understands origin and spacing
src.Update()
inputdata = src.GetOutput()
if "Normalize" in args:
testdata1 = inputdata.NewInstance()
testdata1.ShallowCopy(inputdata)
testdata1.SetSpacing(1, 1, 1)
testdata1.SetOrigin(0, 0, 0)
inputdata = testdata1
bounds = inputdata.GetBounds()
center = [(bounds[1] - bounds[0]) / 2 + bounds[0],
(bounds[3] - bounds[2]) / 2 + bounds[2],
(bounds[5] - bounds[4]) / 2 + bounds[4]]
d2p = vtk.vtkDataSetToPiston()
d2p.SetInputData(inputdata)
#d2p.SetInputConnection(src.GetOutputPort())
plane = vtk.vtkPlane()
plane.SetOrigin(center)
plane.SetNormal(0, 0, 1)
filter = vtk.vtkPistonSlice()
filter.SetInputConnection(d2p.GetOutputPort())
filter.SetClippingPlane(plane)
filter.SetOffset(0.0)
p2d = vtk.vtkPistonToDataSet()
p2d.SetOutputDataSetType(vtk.VTK_POLY_DATA)
p2d.SetInputConnection(filter.GetOutputPort())
if writefiles:
writeFile(p2d, "piston_slice.vtk")
mapper = vtk.vtkPistonMapper()
mapper.SetInputConnection(filter.GetOutputPort())
mapper.Update() #TODO why is this necessary
actor = vtk.vtkActor()
actor.SetMapper(mapper)
renderer.AddActor(actor)
widget = vtk.vtkImplicitPlaneWidget()
widget.PlaceWidget(bounds)
widget.SetOrigin([plane.GetOrigin()[x] for x in 0, 1, 2])
widget.SetNormal([plane.GetNormal()[x] for x in 0, 1, 2])
widget.SetInteractor(iren)
widget.AddObserver("InteractionEvent", widgetCallBack)
widget.SetEnabled(1)
widget.DrawPlaneOff()
renderer.ResetCamera()
renwin.Render()
img_file = "TestSlice.png"
Testing.compareImage(renwin, Testing.getAbsImagePath(img_file))
if Testing.isInteractive():
widget.DrawPlaneOn()
iren.Start()
def add_plane_widget(self,
callback,
normal='x',
origin=None,
bounds=None,
factor=1.25,
color=None,
assign_to_axis=None,
tubing=False,
outline_translation=False,
origin_translation=True,
**kwargs):
"""Add a plane widget to the scene. This is useless without a callback
function. You can pass a callable function that takes two
arguments, the normal and origin of the plane in that order output
from this widget, and performs a task with that plane.
Parameters
----------
callback : callable
The method called everytime the plane is updated. Takes two
arguments, the normal and origin of the plane in that order.
noraml : str or tuple(flaot)
The starting normal vector of the plane
origin : tuple(float)
The starting coordinate of the center of the place
bounds : tuple(float)
Length 6 tuple of the bounding box where the widget is placed.
factor : float, optional
An inflation factor to expand on the bounds when placing
color : string or 3 item list, optional, defaults to white
Either a string, rgb list, or hex color string.
translation_enabled : bool
If ``False``, the box widget cannot be translated and is strictly
placed at the given bounds.
"""
if hasattr(self, 'notebook') and self.notebook:
raise AssertionError(
'Plane widget not available in notebook plotting')
if not hasattr(self, 'iren'):
raise AttributeError(
'Widgets must be used with an intereactive renderer. No off screen plotting.'
)
if not hasattr(self, "plane_widgets"):
self.plane_widgets = []
if origin is None:
origin = self.center
if bounds is None:
bounds = self.bounds
if isinstance(normal, str):
normal = NORMALS[normal.lower()]
if color is None:
color = rcParams['font']['color']
def _the_callback(plane_widget, event_id):
the_plane = vtk.vtkPlane()
plane_widget.GetPlane(the_plane)
normal = the_plane.GetNormal()
origin = the_plane.GetOrigin()
if hasattr(callback, '__call__'):
try_callback(callback, normal, origin)
return
plane_widget = vtk.vtkImplicitPlaneWidget()
plane_widget.GetNormalProperty().SetColor(parse_color(color))
plane_widget.GetOutlineProperty().SetColor(parse_color(color))
plane_widget.GetOutlineProperty().SetColor(parse_color(color))
plane_widget.GetPlaneProperty().SetOpacity(0.5)
plane_widget.SetTubing(tubing)
plane_widget.SetInteractor(self.iren)
plane_widget.SetCurrentRenderer(self.renderer)
plane_widget.SetPlaceFactor(factor)
plane_widget.PlaceWidget(bounds)
plane_widget.SetOrigin(origin)
plane_widget.SetOutlineTranslation(outline_translation)
plane_widget.SetOriginTranslation(origin_translation)
if assign_to_axis:
# TODO: how do we now disable/hide the arrow?
if assign_to_axis in [0, "x", "X"]:
plane_widget.NormalToXAxisOn()
plane_widget.SetNormal(NORMALS["x"])
elif assign_to_axis in [1, "y", "Y"]:
plane_widget.NormalToYAxisOn()
plane_widget.SetNormal(NORMALS["y"])
elif assign_to_axis in [2, "z", "Z"]:
plane_widget.NormalToZAxisOn()
plane_widget.SetNormal(NORMALS["z"])
else:
raise RuntimeError("assign_to_axis not understood")
else:
plane_widget.SetNormal(normal)
plane_widget.Modified()
plane_widget.UpdatePlacement()
plane_widget.On()
plane_widget.AddObserver(vtk.vtkCommand.EndInteractionEvent,
_the_callback)
_the_callback(plane_widget, None) # Trigger immediate update
_start_interact = lambda plane_widget, event: plane_widget.SetDrawPlane(
True)
_stop_interact = lambda plane_widget, event: plane_widget.SetDrawPlane(
False)
plane_widget.SetDrawPlane(False)
plane_widget.AddObserver(vtk.vtkCommand.StartInteractionEvent,
_start_interact)
plane_widget.AddObserver(vtk.vtkCommand.EndInteractionEvent,
_stop_interact)
self.plane_widgets.append(plane_widget)
return plane_widget
def __init__(self, slider_x, slider_y, slider_z, parent=None):
super(VTK_Widget1, self).__init__(parent)
self.source_is_connected = False
self.slider_x = slider_x
self.slider_y = slider_y
self.slider_z = slider_z
# vtk to point data
self.c2p = vtk.vtkCellDataToPointData()
self.opacityTransferFunction = vtk.vtkPiecewiseFunction()
self.colorTransferFunction = vtk.vtkColorTransferFunction()
# clip plane
self.clip_plane = vtk.vtkPlane()
self.clip_plane.SetNormal(0, 0, 1)
self.clipper = vtk.vtkClipDataSet()
self.clipper.SetClipFunction(self.clip_plane)
self.clipper.SetInputConnection(self.c2p.GetOutputPort())
# create a volume property for describing how the data will look
self.volumeProperty = vtk.vtkVolumeProperty()
self.volumeProperty.SetColor(self.colorTransferFunction)
self.volumeProperty.SetScalarOpacity(self.opacityTransferFunction)
self.volumeProperty.ShadeOn()
self.volumeProperty.SetInterpolationTypeToLinear()
# convert to unstructured grid volume
self.triangleFilter = vtk.vtkDataSetTriangleFilter()
self.triangleFilter.TetrahedraOnlyOn()
self.triangleFilter.SetInputConnection(self.clipper.GetOutputPort())
# create a ray cast mapper
self.compositeFunction = vtk.vtkUnstructuredGridBunykRayCastFunction()
self.volumeMapper = vtk.vtkUnstructuredGridVolumeRayCastMapper()
self.volumeMapper.SetRayCastFunction(self.compositeFunction)
self.volumeMapper.SetInputConnection(self.triangleFilter.GetOutputPort())
# create a volume
self.volume = vtk.vtkVolume()
self.volume.SetMapper(self.volumeMapper)
self.volume.SetProperty(self.volumeProperty)
self.volume.VisibilityOff()
# create the VTK widget for rendering
self.vtkw = QVTKRenderWindowInteractor(self)
self.ren = vtk.vtkRenderer()
self.vtkw.GetRenderWindow().AddRenderer(self.ren)
self.ren.AddVolume(self.volume)
self.alphaSlider = QSlider(Qt.Horizontal)
self.alphaSlider.setValue(33)
self.alphaSlider.setRange(0, 100)
self.alphaSlider.setTickPosition(QSlider.NoTicks)
self.connect(self.alphaSlider, SIGNAL("valueChanged(int)"), self.AdjustAlpha)
self.alphaLabel = QLabel("alpha: ")
# layout manager
self.layout = QVBoxLayout()
self.layout2 = QHBoxLayout()
self.layout2.addWidget(self.alphaLabel)
self.layout2.addWidget(self.alphaSlider)
self.layout.addWidget(self.vtkw)
self.layout.addSpacing(34)
self.layout.addLayout(self.layout2)
self.setLayout(self.layout)
# initialize the interactor
self.vtkw.Initialize()
self.vtkw.Start()
# Associate the line widget with the interactor
self.planeWidget = vtk.vtkImplicitPlaneWidget()
self.planeWidget.SetInteractor(self.vtkw)
self.planeWidget.AddObserver("InteractionEvent", self.PlaneWidgetCallback)
self.planeWidget.DrawPlaneOff()
self.planeWidget.TubingOn()
def testSlice(self):
global plane, filter, args
writefiles = "SaveData" in args
renderer = vtk.vtkRenderer()
renwin = vtk.vtkRenderWindow()
renwin.AddRenderer(renderer)
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renwin)
renwin.Render()
if "GPURender" in args:
vtk.vtkPistonMapper.InitCUDAGL(renwin)
src = vtk.vtkImageMandelbrotSource()
src.SetWholeExtent(0,20,0,20,0,20)
#scale and bias until piston understands origin and spacing
src.Update()
inputdata = src.GetOutput()
if "Normalize" in args:
testdata1 = inputdata.NewInstance()
testdata1.ShallowCopy(inputdata)
testdata1.SetSpacing(1,1,1)
testdata1.SetOrigin(0,0,0)
inputdata = testdata1
bounds = inputdata.GetBounds()
center = [(bounds[1]-bounds[0])/2+bounds[0],
(bounds[3]-bounds[2])/2+bounds[2],
(bounds[5]-bounds[4])/2+bounds[4]]
d2p = vtk.vtkDataSetToPiston()
d2p.SetInputData(inputdata)
#d2p.SetInputConnection(src.GetOutputPort())
plane = vtk.vtkPlane()
plane.SetOrigin(center)
plane.SetNormal(0,0,1)
filter = vtk.vtkPistonSlice()
filter.SetInputConnection(d2p.GetOutputPort())
filter.SetClippingPlane(plane)
filter.SetOffset(0.0)
p2d = vtk.vtkPistonToDataSet()
p2d.SetOutputDataSetType(vtk.VTK_POLY_DATA)
p2d.SetInputConnection(filter.GetOutputPort())
if writefiles:
writeFile(p2d, "piston_slice.vtk")
mapper = vtk.vtkPistonMapper()
mapper.SetInputConnection(filter.GetOutputPort())
mapper.Update() #TODO why is this necessary
actor = vtk.vtkActor()
actor.SetMapper(mapper)
renderer.AddActor(actor)
widget = vtk.vtkImplicitPlaneWidget()
widget.PlaceWidget(bounds)
widget.SetOrigin([plane.GetOrigin()[x] for x in 0,1,2])