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100 lines
2.9 KiB
100 lines
2.9 KiB
2 years ago
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package require vtk
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package require vtkinteraction
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# Demonstrate how to use the vtkInteractorEventRecorder to play back some
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# events.
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# Create a mace out of filters.
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#
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vtkSphereSource sphere
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vtkConeSource cone
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vtkGlyph3D glyph
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glyph SetInputConnection [sphere GetOutputPort]
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glyph SetSource [cone GetOutput]
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glyph SetVectorModeToUseNormal
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glyph SetScaleModeToScaleByVector
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glyph SetScaleFactor 0.25
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# The sphere and spikes are appended into a single polydata. This just makes things
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# simpler to manage.
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vtkAppendPolyData apd
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apd AddInput [glyph GetOutput]
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apd AddInput [sphere GetOutput]
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vtkPolyDataMapper maceMapper
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maceMapper SetInputConnection [apd GetOutputPort]
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vtkLODActor maceActor
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maceActor SetMapper maceMapper
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maceActor VisibilityOn
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# This portion of the code clips the mace with the vtkPlanes implicit function.
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# The clipped region is colored green.
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vtkPlanes planes
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vtkClipPolyData clipper
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clipper SetInputConnection [apd GetOutputPort]
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clipper SetClipFunction planes
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clipper InsideOutOn
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vtkPolyDataMapper selectMapper
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selectMapper SetInputConnection [clipper GetOutputPort]
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vtkLODActor selectActor
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selectActor SetMapper selectMapper
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[selectActor GetProperty] SetColor 0 1 0
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selectActor VisibilityOff
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selectActor SetScale 1.01 1.01 1.01
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# Create the RenderWindow, Renderer and both Actors
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#
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vtkRenderer ren1
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vtkRenderWindow renWin
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renWin AddRenderer ren1
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vtkRenderWindowInteractor iren
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iren SetRenderWindow renWin
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iren AddObserver ExitEvent {exit}
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# The SetInteractor method is how 3D widgets are associated with the render
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# window interactor. Internally, SetInteractor sets up a bunch of callbacks
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# using the Command/Observer mechanism (AddObserver()).
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vtkBoxWidget boxWidget
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boxWidget SetInteractor iren
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boxWidget SetPlaceFactor 1.25
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ren1 AddActor maceActor
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ren1 AddActor selectActor
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# Add the actors to the renderer, set the background and size
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#
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ren1 SetBackground 0.1 0.2 0.4
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renWin SetSize 300 300
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# Place the interactor initially. The input to a 3D widget is used to
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# initially position and scale the widget. The EndInteractionEvent is
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# observed which invokes the SelectPolygons callback.
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boxWidget SetInputConnection [glyph GetOutputPort]
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boxWidget PlaceWidget
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boxWidget AddObserver EndInteractionEvent SelectPolygons
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# record events
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vtkInteractorEventRecorder recorder
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recorder SetInteractor iren
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recorder SetFileName "$VTK_DATA_ROOT/Data/EventRecording.log"
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# render the image
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#
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iren AddObserver UserEvent {wm deiconify .vtkInteract}
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iren Initialize
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#recorder Record
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# prevent the tk window from showing up then start the event loop
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wm withdraw .
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# This does the actual work: updates the vtkPlanes implicit function.
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# This in turn causes the pipeline to update.
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proc SelectPolygons {} {
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boxWidget GetPlanes planes
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selectActor VisibilityOn
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}
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recorder Play
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recorder Off
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set threshold 15
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