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package require vtk
package require vtkinteraction
# Demonstrate how to use the vtkBoxWidget.
# This script uses a 3D box widget to define a "clipping box" to clip some
# simple geometry (a mace). Make sure that you hit the "W" key to activate the widget.
# create a sphere source
#
vtkSphereSource sphere
vtkConeSource cone
vtkGlyph3D glyph
glyph SetInputConnection [sphere GetOutputPort]
glyph SetSource [cone GetOutput]
glyph SetVectorModeToUseNormal
glyph SetScaleModeToScaleByVector
glyph SetScaleFactor 0.25
vtkAppendPolyData apd
apd AddInput [glyph GetOutput]
apd AddInput [sphere GetOutput]
vtkPolyDataMapper maceMapper
maceMapper SetInputConnection [apd GetOutputPort]
vtkLODActor maceActor
maceActor SetMapper maceMapper
maceActor VisibilityOn
vtkPlanes planes
vtkClipPolyData clipper
clipper SetInputConnection [apd GetOutputPort]
clipper SetClipFunction planes
clipper InsideOutOn
vtkPolyDataMapper selectMapper
selectMapper SetInputConnection [clipper GetOutputPort]
vtkLODActor selectActor
selectActor SetMapper selectMapper
[selectActor GetProperty] SetColor 0 1 0
selectActor VisibilityOff
selectActor SetScale 1.01 1.01 1.01
# Create the RenderWindow, Renderer and both Actors
#
vtkRenderer ren1
vtkRenderWindow renWin
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
vtkBoxWidget boxWidget
boxWidget SetInteractor iren
ren1 AddActor maceActor
ren1 AddActor selectActor
# Add the actors to the renderer, set the background and size
#
ren1 SetBackground 0.1 0.2 0.4
renWin SetSize 300 300
# place the interactor initially
boxWidget SetInputConnection [glyph GetOutputPort]
boxWidget PlaceWidget
boxWidget AddObserver EndInteractionEvent SelectPolygons
# render the image
#
iren AddObserver UserEvent {wm deiconify .vtkInteract}
iren Initialize
# prevent the tk window from showing up then start the event loop
wm withdraw .
proc SelectPolygons {} {
boxWidget GetPlanes planes
selectActor VisibilityOn
}
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