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package require vtk
package require vtkinteraction
# Create the RenderWindow, Renderer and both Actors
#
vtkRenderer ren1
vtkRenderWindow renWin
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
#
# Create the data
#
vtkPoints points
vtkCellArray polys
set i 0
for { set z -5 } { $z < 30 } { incr z } {
for { set xtraX 0 } { $xtraX < 90 } { incr xtraX 30 } {
for { set xtraY 0 } { $xtraY < 90 } { incr xtraY 30 } {
set x -10
set y -10
set x [expr $x + $xtraX]
set y [expr $y + $xtraY]
if { [expr $z % 12] == 0 } { incr x 1; }
if { [expr $z % 12] == 1 } { incr x 2 }
if { [expr $z % 12] == 2 } { incr x 3 }
if { [expr $z % 12] == 3 } { incr x 3; incr y 1 }
if { [expr $z % 12] == 4 } { incr x 3; incr y 2 }
if { [expr $z % 12] == 5 } { incr x 3; incr y 3 }
if { [expr $z % 12] == 6 } { incr x 2; incr y 3 }
if { [expr $z % 12] == 7 } { incr x 1; incr y 3 }
if { [expr $z % 12] == 8 } { incr y 3 }
if { [expr $z % 12] == 9 } { incr y 2 }
if { [expr $z % 12] == 10 } { incr y 1 }
if { [expr ($xtraX != 30 && $xtraY != 30) || ($xtraX == $xtraY)] } {
polys InsertNextCell 4
points InsertPoint $i [expr $x + 0] [expr $y + 0] $z
polys InsertCellPoint $i
incr i
points InsertPoint $i [expr $x + 20] [expr $y + 0] $z
polys InsertCellPoint $i
incr i
points InsertPoint $i [expr $x + 20] [expr $y + 20] $z
polys InsertCellPoint $i
incr i
points InsertPoint $i [expr $x + 0] [expr $y + 20] $z
polys InsertCellPoint $i
incr i
polys InsertNextCell 4
points InsertPoint $i [expr $x + 4] [expr $y + 4] $z
polys InsertCellPoint $i
incr i
points InsertPoint $i [expr $x + 16] [expr $y + 4] $z
polys InsertCellPoint $i
incr i
points InsertPoint $i [expr $x + 16] [expr $y + 16] $z
polys InsertCellPoint $i
incr i
points InsertPoint $i [expr $x + 4] [expr $y + 16] $z
polys InsertCellPoint $i
incr i
}
if { [expr $xtraX != 30 || $xtraY != 30]} {
polys InsertNextCell 4
points InsertPoint $i [expr $x + 8] [expr $y + 8] $z
polys InsertCellPoint $i
incr i
points InsertPoint $i [expr $x + 12] [expr $y + 8] $z
polys InsertCellPoint $i
incr i
points InsertPoint $i [expr $x + 12] [expr $y + 12] $z
polys InsertCellPoint $i
incr i
points InsertPoint $i [expr $x + 8] [expr $y + 12] $z
polys InsertCellPoint $i
incr i
}
}
}
}
#
# Create a representation of the contours used as input
#
vtkPolyData contours
contours SetPoints points
contours SetPolys polys
vtkPolyDataMapper contourMapper
contourMapper SetInputData contours
vtkActor contourActor
contourActor SetMapper contourMapper
[contourActor GetProperty] SetColor 1 0 0
[contourActor GetProperty] SetAmbient 1
[contourActor GetProperty] SetDiffuse 0
[contourActor GetProperty] SetRepresentationToWireframe
ren1 AddViewProp contourActor
ren1 ResetCamera
[ren1 GetActiveCamera] Azimuth 10
[ren1 GetActiveCamera] Elevation 30
ren1 ResetCameraClippingRange
renWin SetSize 300 300
renWin Render
iren AddObserver UserEvent {wm deiconify .vtkInteract}
renWin Render
# prevent the tk window from showing up then start the event loop
wm withdraw .
#
# Create the contour to surface filter
#
vtkVoxelContoursToSurfaceFilter f
f SetInputData contours
f SetMemoryLimitInBytes 100000
vtkPolyDataMapper m
m SetInputConnection [f GetOutputPort]
m ScalarVisibilityOff
m ImmediateModeRenderingOn
vtkActor a
a SetMapper m
ren1 AddViewProp a
contourActor VisibilityOff
ren1 SetBackground .1 .2 .4
renWin Render
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