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package require vtk
package require vtkinteraction
# read the football dataset:
#
vtkUnstructuredGridReader reader
reader SetFileName "$VTK_DATA_ROOT/Data/PentaHexa.vtk"
reader Update
# Clip
#
vtkPlane plane
plane SetNormal 1 1 0
vtkClipDataSet clip
clip SetInputConnection [reader GetOutputPort]
clip SetClipFunction plane
clip GenerateClipScalarsOn
vtkDataSetSurfaceFilter g
g SetInputConnection [clip GetOutputPort]
vtkPolyDataMapper map
map SetInputConnection [g GetOutputPort]
vtkActor clipActor
clipActor SetMapper map
# Contour
#
vtkContourFilter contour
contour SetInputConnection [reader GetOutputPort]
contour SetValue 0 0.125
contour SetValue 1 0.25
contour SetValue 2 0.5
contour SetValue 3 0.75
contour SetValue 4 1.0
vtkDataSetSurfaceFilter g2
g2 SetInputConnection [contour GetOutputPort]
vtkPolyDataMapper map2
map2 SetInputConnection [g2 GetOutputPort]
map2 ScalarVisibilityOff
vtkActor contourActor
contourActor SetMapper map2
[contourActor GetProperty] SetColor 1 0 0
[contourActor GetProperty] SetRepresentationToWireframe
# Triangulate
vtkDataSetTriangleFilter tris
tris SetInputConnection [reader GetOutputPort]
vtkShrinkFilter shrink
shrink SetInputConnection [tris GetOutputPort]
shrink SetShrinkFactor .8
vtkDataSetMapper map3
map3 SetInputConnection [shrink GetOutputPort]
map3 SetScalarRange 0 26
vtkActor triActor
triActor SetMapper map3
triActor AddPosition 2 0 0
# Create graphics stuff
#
vtkRenderer ren1
vtkRenderWindow renWin
renWin SetMultiSamples 0
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
# Add the actors to the renderer, set the background and size
#
ren1 AddActor clipActor
ren1 AddActor contourActor
ren1 AddActor triActor
ren1 SetBackground 1 1 1
renWin Render
# render the image
#
iren Initialize
iren AddObserver UserEvent {wm deiconify .vtkInteract}
renWin Render
# prevent the tk window from showing up then start the event loop
wm withdraw .
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