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package require vtk
package require vtkinteraction
# Create the RenderWindow, Renderer, and RenderWindowInteractor
#
vtkRenderer ren1
vtkRenderWindow renWin
renWin SetMultiSamples 0
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
# create pipeline
#
set PIECE 0
set NUMBER_OF_PIECES 8
vtkImageReader reader
reader SetDataByteOrderToLittleEndian
reader SetDataExtent 0 63 0 63 1 64
reader SetFilePrefix "$VTK_DATA_ROOT/Data/headsq/quarter"
reader SetDataMask 0x7fff
reader SetDataSpacing 1.6 1.6 1.5
vtkImageClip clipper
clipper SetInputConnection [reader GetOutputPort]
clipper SetOutputWholeExtent 30 36 30 36 30 36
vtkImageClip clipper2
clipper2 SetInputConnection [reader GetOutputPort]
clipper2 SetOutputWholeExtent 30 36 30 36 30 36
vtkDataSetTriangleFilter tris
tris SetInputConnection [clipper GetOutputPort]
vtkDataSetTriangleFilter tris2
tris2 SetInputConnection [clipper2 GetOutputPort]
vtkGeometryFilter geom
geom SetInputConnection [tris GetOutputPort]
vtkExtractEdges edges
edges SetInputConnection [tris2 GetOutputPort]
vtkPolyDataMapper mapper1
mapper1 SetInputConnection [geom GetOutputPort]
mapper1 ScalarVisibilityOn
mapper1 SetScalarRange 0 1200
mapper1 SetPiece $PIECE
mapper1 SetNumberOfPieces $NUMBER_OF_PIECES
vtkPolyDataMapper mapper2
mapper2 SetInputConnection [edges GetOutputPort]
mapper2 SetPiece $PIECE
mapper2 SetNumberOfPieces $NUMBER_OF_PIECES
vtkActor actor1
actor1 SetMapper mapper1
vtkActor actor2
actor2 SetMapper mapper2
# add the actor to the renderer; set the size
#
ren1 AddActor actor1
ren1 AddActor actor2
renWin SetSize 450 450
ren1 SetBackground 1 1 1
renWin Render
# 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 .
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