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package require vtk
package require vtkinteraction
# Now create the RenderWindow, Renderer and Interactor
#
vtkRenderer ren1
vtkRenderWindow renWin
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
vtkSphereSource sphereModel
sphereModel SetThetaResolution 10
sphereModel SetPhiResolution 10
vtkVoxelModeller voxelModel
voxelModel SetInputConnection [sphereModel GetOutputPort]
voxelModel SetSampleDimensions 21 21 21
voxelModel SetModelBounds -1.5 1.5 -1.5 1.5 -1.5 1.5
voxelModel SetScalarTypeToBit
voxelModel SetForegroundValue 1
voxelModel SetBackgroundValue 0
if {[catch {set channel [open "voxelModel.vtk" "w"]}] == 0 } {
close $channel
file delete -force "voxelModel.vtk"
vtkDataSetWriter aWriter
aWriter SetFileName "voxelModel.vtk"
aWriter SetInputConnection [voxelModel GetOutputPort]
aWriter Update
vtkDataSetReader aReader
aReader SetFileName "voxelModel.vtk"
vtkContourFilter voxelSurface
voxelSurface SetInputConnection [aReader GetOutputPort]
voxelSurface SetValue 0 .999
vtkPolyDataMapper voxelMapper
voxelMapper SetInputConnection [voxelSurface GetOutputPort]
vtkActor voxelActor
voxelActor SetMapper voxelMapper
vtkPolyDataMapper sphereMapper
sphereMapper SetInputConnection [sphereModel GetOutputPort]
vtkActor sphereActor
sphereActor SetMapper sphereMapper
ren1 AddActor sphereActor
ren1 AddActor voxelActor
ren1 SetBackground .1 .2 .4
renWin SetSize 256 256
ren1 ResetCamera
[ren1 GetActiveCamera] SetViewUp 0 -1 0;
[ren1 GetActiveCamera] Azimuth 180
[ren1 GetActiveCamera] Dolly 1.75
ren1 ResetCameraClippingRange
iren Initialize;
# render the image
#
iren AddObserver UserEvent {wm deiconify .vtkInteract};
# prevent the tk window from showing up then start the event loop
wm withdraw .
}
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