package require vtk
package require vtkinteraction
package require vtktesting

if {[catch {set channel [open "fullHead.tri" "w"]}] == 0 } {
   close $channel
   file delete -force "fullHead.tri"
   file delete -force "fullHead.lim"
# reader reads slices
vtkVolume16Reader v16
    v16 SetDataDimensions 64 64
    v16 SetDataByteOrderToLittleEndian
    v16 SetFilePrefix "$VTK_DATA_ROOT/Data/headsq/quarter"
    v16 SetDataSpacing 3.2 3.2 1.5
    v16 SetImageRange 30 50
    v16 SetDataMask 0x7fff

# write isosurface to file
vtkSliceCubes mcubes
    mcubes SetReader v16
    mcubes SetValue 1150
    mcubes SetFileName "fullHead.tri"
    mcubes SetLimitsFileName "fullHead.lim"
    mcubes Update

# read from file
vtkMCubesReader reader
reader SetFileName "fullHead.tri"
reader SetLimitsFileName "fullHead.lim"

vtkPolyDataMapper mapper
    mapper SetInputConnection [reader GetOutputPort]
    
vtkActor head
    head SetMapper mapper
    eval [head GetProperty] SetColor $raw_sienna

# Create the RenderWindow, Renderer and Interactor
#
vtkRenderer ren1
vtkRenderWindow renWin
    renWin AddRenderer ren1
vtkRenderWindowInteractor iren
    iren SetRenderWindow renWin

# Add the actors to the renderer, set the background and size
#
ren1 AddActor head
ren1 SetBackground 1 1 1
renWin SetSize 500 500
eval ren1 SetBackground $slate_grey
[ren1 GetActiveCamera] SetPosition 99.8847 537.926 15 
[ren1 GetActiveCamera] SetFocalPoint 99.8847 109.81 15 
[ren1 GetActiveCamera] SetViewAngle 20
[ren1 GetActiveCamera] SetViewUp 0 0 -1 

ren1 ResetCameraClippingRange

# render the image
#
iren AddObserver UserEvent {wm deiconify .vtkInteract}

renWin Render


# prevent the tk window from showing up then start the event loop
wm withdraw .
   file delete -force "fullHead.tri"
   file delete -force "fullHead.lim"
}
