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package require vtk
package require vtkinteraction
vtkVectorText disk
disk SetText "o"
vtkTransform t
t Translate 1.1 0 0
vtkTransformFilter tf
tf SetTransform t
tf SetInputConnection [disk GetOutputPort]
vtkStripper strips
strips SetInputConnection [tf GetOutputPort]
vtkAppendPolyData app
app AddInput [disk GetOutput]
app AddInput [strips GetOutput]
app Update
set model [app GetOutput]
vtkLinearExtrusionFilter extrude
extrude SetInput $model
# create random cell scalars for the model before extrusion.
vtkMath rn
rn RandomSeed 1230
vtkUnsignedCharArray cellColors
cellColors SetNumberOfComponents 3
cellColors SetNumberOfTuples [$model GetNumberOfCells]
for { set i 0 } { $i < [$model GetNumberOfCells] } { incr i } {
cellColors InsertComponent $i 0 [rn Random 100 255]
cellColors InsertComponent $i 1 [rn Random 100 255]
cellColors InsertComponent $i 2 [rn Random 100 255]
}
[$model GetCellData] SetScalars cellColors
# Lets test the arrow source instead of creating another test.
vtkArrowSource arrow1
vtkPolyDataMapper mapper1
mapper1 SetInputConnection [arrow1 GetOutputPort]
vtkActor actor1
actor1 SetMapper mapper1
actor1 SetPosition 0 -0.2 1
vtkArrowSource arrow2
arrow2 SetShaftResolution 2
arrow2 SetTipResolution 1
vtkPolyDataMapper mapper2
mapper2 SetInputConnection [arrow2 GetOutputPort]
vtkActor actor2
actor2 SetMapper mapper2
actor2 SetPosition 1 -0.2 1
# Create the RenderWindow, Renderer and both Actors
#
vtkRenderer ren1
vtkRenderWindow renWin
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
vtkPolyDataMapper mapper
mapper SetInputConnection [extrude GetOutputPort]
vtkActor actor
actor SetMapper mapper
# Add the actors to the renderer, set the background and size
#
ren1 AddActor actor
ren1 AddActor actor1
ren1 AddActor actor2
ren1 SetBackground 0.1 0.2 0.4
renWin SetSize 300 300
# render the image
#
iren AddObserver UserEvent {wm deiconify .vtkInteract}
set cam1 [ren1 GetActiveCamera]
$cam1 Azimuth 20
$cam1 Elevation 40
ren1 ResetCamera
$cam1 Zoom 1.5
iren Initialize
# prevent the tk window from showing up then start the event loop
wm withdraw .
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