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package require vtk
package require vtkinteraction
set root [toplevel .top -visual {truecolor 24}]
wm title .top "superquadric viewer"
wm protocol .top WM_DELETE_WINDOW ::vtk::cb_exit
# create render window
vtkRenderWindow renWin
set ren [vtkTkRenderWidget $root.ren -width 550 -height 450 -rw renWin]
::vtk::bind_tk_render_widget $ren
# create parameter sliders
set prs [scale $root.prs -from 0 -to 3.5 -res 0.1 -orient horizontal \
-label "phi roundness"]
set trs [scale $root.trs -from 0 -to 3.5 -res 0.1 -orient horizontal \
-label "theta roundness"]
set thicks [scale $root.thicks -from 0.01 -to 1 -res 0.01 -orient horizontal \
-label "thickness"]
set rframe [frame $root.rframe]
set torbut [checkbutton $rframe.torbut -text "Toroid" -variable toroid]
set texbut [checkbutton $rframe.texbut -text "Texture" -variable doTexture]
grid $ren - -sticky news
grid $rframe $thicks -sticky news -padx 10 -ipady 5
grid $rframe -sticky news
grid $prs $trs -sticky news -padx 10 -ipady 5
pack $torbut $texbut -padx 10 -pady 5 -ipadx 20 -ipady 5 -side right -anchor s
pack propagate $rframe no
set renWin1 [$ren GetRenderWindow]
# create pipeline
vtkSuperquadricSource squad
squad SetPhiResolution 20
squad SetThetaResolution 25
vtkPNMReader pnmReader
pnmReader SetFileName "$VTK_DATA_ROOT/Data/earth.ppm"
vtkTexture atext
atext SetInputConnection [pnmReader GetOutputPort]
atext InterpolateOn
vtkAppendPolyData appendSquads
appendSquads AddInputConnection [squad GetOutputPort]
vtkPolyDataMapper mapper
mapper SetInputConnection [squad GetOutputPort]
mapper ScalarVisibilityOff
vtkActor actor
actor SetMapper mapper
actor SetTexture atext
eval [actor GetProperty] SetDiffuseColor 0.5 0.8 0.8
eval [actor GetProperty] SetAmbient 0.2
eval [actor GetProperty] SetAmbientColor 0.2 0.2 0.2
proc setTexture {actor texture win} {
global doTexture
if $doTexture {
$actor SetTexture $texture
} else {
$actor SetTexture {}
}
$win Render
}
proc setPhi {squad win phi} {
$squad SetPhiRoundness $phi
$win Render
}
proc setTheta {squad win theta} {
$squad SetThetaRoundness $theta
$win Render
}
proc setThickness {squad win thickness} {
$squad SetThickness $thickness
$win Render
}
proc setToroid {squad scale win} {
global toroid
$squad SetToroidal $toroid
if {$toroid} {
$scale config -state normal -fg black
} else {
$scale config -state disabled -fg gray
}
$win Render
}
$prs set 1.0
$trs set 0.7
$thicks set 0.3
set toroid 1
set doTexture 0
squad SetPhiRoundness [$prs get]
squad SetThetaRoundness [$trs get]
squad SetToroidal $toroid
squad SetThickness [$thicks get]
squad SetScale 1 1 1
setTexture actor atext $renWin1
# Create renderer stuff
#
vtkRenderer ren1
ren1 SetAmbient 1 1 1
$renWin1 AddRenderer ren1
# Add the actors to the renderer, set the background and size
#
ren1 AddActor actor
ren1 SetBackground 0.25 0.2 0.2
ren1 ResetCamera
[ren1 GetActiveCamera] Zoom 1.2
[ren1 GetActiveCamera] Elevation 40
[ren1 GetActiveCamera] Azimuth -20
# prevent the tk window from showing up then start the event loop
wm withdraw .
update
$prs config -command "setPhi squad $renWin1"
$trs config -command "setTheta squad $renWin1"
$thicks config -command "setThickness squad $renWin1"
$torbut config -command "setToroid squad $thicks $renWin1"
$texbut config -command "setTexture actor atext $renWin1"
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