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package require vtk
package require vtkinteraction
package require vtktesting
#
# Demonstrate the use of clipping and capping on polyhedral data
#
# create a sphere and clip it
#
vtkSphereSource sphere
sphere SetRadius 1
sphere SetPhiResolution 10
sphere SetThetaResolution 10
vtkPlane plane1
plane1 SetOrigin 0.3 0.3 0.3
plane1 SetNormal -1 -1 -1
vtkPlane plane2
plane2 SetOrigin 0.5 0 0
plane2 SetNormal -1 0 0
vtkPlaneCollection planes
planes AddItem plane1
planes AddItem plane2
# stripper just increases coverage
vtkStripper stripper
stripper SetInputConnection [sphere GetOutputPort]
vtkClipClosedSurface clipper
clipper SetInputConnection [stripper GetOutputPort]
clipper SetClippingPlanes planes
vtkClipClosedSurface clipperOutline
clipperOutline SetInputConnection [stripper GetOutputPort]
clipperOutline SetClippingPlanes planes
clipperOutline GenerateFacesOff
clipperOutline GenerateOutlineOn
vtkPolyDataMapper sphereMapper
sphereMapper SetInputConnection [clipper GetOutputPort]
vtkPolyDataMapper clipperOutlineMapper
clipperOutlineMapper SetInputConnection [clipperOutline GetOutputPort]
vtkActor clipActor
clipActor SetMapper sphereMapper
[clipActor GetProperty] SetColor 0.8 0.05 0.2
vtkActor clipOutlineActor
clipOutlineActor SetMapper clipperOutlineMapper
[clipOutlineActor GetProperty] SetColor 0 1 0
clipOutlineActor SetPosition 0.001 0.001 0.001
# create an outline
vtkOutlineFilter outline
outline SetInputConnection [sphere GetOutputPort]
outline GenerateFacesOn
vtkClipClosedSurface outlineClip
outlineClip SetClippingPlanes planes
outlineClip SetInputConnection [outline GetOutputPort]
outlineClip GenerateFacesOff
outlineClip GenerateOutlineOn
outlineClip SetScalarModeToColors
outlineClip SetClipColor 0 1 0
vtkDataSetMapper outlineMapper
outlineMapper SetInputConnection [outlineClip GetOutputPort]
vtkActor outlineActor
outlineActor SetMapper outlineMapper
outlineActor SetPosition 0.001 0.001 0.001
# Create graphics stuff
#
vtkRenderer ren1
vtkRenderWindow renWin
renWin AddRenderer ren1
renWin SetMultiSamples 0
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
# Add the actors to the renderer, set the background and size
#
ren1 AddActor clipActor
ren1 AddActor clipOutlineActor
ren1 AddActor outlineActor
ren1 SetBackground 1 1 1
ren1 ResetCamera
[ren1 GetActiveCamera] Azimuth 30
[ren1 GetActiveCamera] Elevation 30
[ren1 GetActiveCamera] Dolly 1.2
ren1 ResetCameraClippingRange
renWin SetSize 300 300
iren Initialize
# render the image
#
iren AddObserver UserEvent {wm deiconify .vtkInteract}
# prevent the tk window from showing up then start the event loop
wm withdraw .
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