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package require vtk
package require vtkinteraction
# Create renderer stuff
#
vtkRenderer ren1
vtkRenderWindow renWin
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
# pipeline stuff
#
vtkSphereSource sphere
sphere SetPhiResolution 5
sphere SetThetaResolution 5
sphere SetRadius 1
vtkTransform xform
xform Scale 1 2 3
xform RotateWXYZ 32 3 1 2
xform Scale 2 5 4
vtkTransformFilter xformFilter
xformFilter SetInputConnection [sphere GetOutputPort]
xformFilter SetTransform xform
vtkElevationFilter el
el SetInputConnection [xformFilter GetOutputPort]
el SetLowPoint 0 0 0
el SetHighPoint 0 0 1
vtkQuadricDecimation mesh
mesh SetInputConnection [el GetOutputPort]
mesh SetTargetReduction .60
mesh AttributeErrorMetricOn
vtkPolyDataMapper mapper
mapper SetInputConnection [mesh GetOutputPort]
vtkActor actor
actor SetMapper mapper
# Set up the camera parameters
#
vtkCamera camera
camera SetPosition -58.3274 -.948032 17.7715
camera SetFocalPoint -.172376 .389125 -.100301
camera SetViewUp -.0374429 .998186 -.0471559
camera SetViewAngle 30
camera SetClippingRange 48.8511 76.1099
ren1 SetActiveCamera camera
# Add the actors to the renderer, set the background and size
#
ren1 AddActor actor
ren1 SetBackground 1 1 1
renWin SetSize 400 400
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 .
renWin Render
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