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86 lines
2.3 KiB
86 lines
2.3 KiB
2 years ago
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package require vtk
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package require vtkinteraction
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package require vtktesting
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# This example demonstrates how to use the vtkPlaneWidget to probe
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# a dataset and then generate contours on the probed data.
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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 SetSourceConnection [cone GetOutputPort]
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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.
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# This just makes things simpler to manage.
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vtkAppendPolyData apd
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apd AddInputConnection [glyph GetOutputPort]
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apd AddInputConnection [sphere GetOutputPort]
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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
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# implicit function. The clipped region is colored green.
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vtkPlane plane
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vtkClipPolyData clipper
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clipper SetInputConnection [apd GetOutputPort]
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clipper SetClipFunction plane
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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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# Associate the line widget with the interactor
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vtkImplicitPlaneWidget planeWidget
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planeWidget SetInteractor iren
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planeWidget SetPlaceFactor 1.25
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planeWidget SetInput [glyph GetOutput]
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planeWidget PlaceWidget
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planeWidget AddObserver InteractionEvent myCallback
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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 1 1 1
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renWin SetSize 300 300
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ren1 SetBackground 0.1 0.2 0.4
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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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renWin Render
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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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proc myCallback {} {
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planeWidget GetPlane plane
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selectActor VisibilityOn
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}
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