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package require vtk
package require vtkinteraction
# pipeline stuff
#
vtkPLOT3DReader pl3d
pl3d SetXYZFileName "$VTK_DATA_ROOT/Data/combxyz.bin"
pl3d SetQFileName "$VTK_DATA_ROOT/Data/combq.bin"
pl3d SetScalarFunctionNumber 100
pl3d SetVectorFunctionNumber 202
pl3d Update
vtkGeometryFilter gf
gf SetInputConnection [pl3d GetOutputPort]
vtkTriangleFilter tf
tf SetInputConnection [gf GetOutputPort]
vtkPolyDataMapper gMapper
gMapper SetInputConnection [gf GetOutputPort]
eval gMapper SetScalarRange [[pl3d GetOutput] GetScalarRange]
vtkActor gActor
gActor SetMapper gMapper
# Don't look at attributes
vtkQuadricDecimation mesh
mesh SetInputConnection [tf GetOutputPort]
mesh SetTargetReduction .90
mesh AttributeErrorMetricOn
vtkPolyDataMapper mapper
mapper SetInputConnection [mesh GetOutputPort]
vtkActor actor
actor SetMapper mapper
# This time worry about attributes
vtkQuadricDecimation mesh2
mesh2 SetInputConnection [tf GetOutputPort]
mesh2 SetTargetReduction .90
mesh2 AttributeErrorMetricOff
vtkPolyDataMapper mapper2
mapper2 SetInputConnection [mesh2 GetOutputPort]
vtkActor actor2
actor2 SetMapper mapper2
actor2 AddPosition 0 12 0
# Create rendering instances
#
vtkRenderer ren1
vtkRenderWindow renWin
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
# Set up the camera parameters
#
vtkCamera camera
camera SetPosition 19.34 6.128 -11.96
camera SetFocalPoint 8.25451 6.0 29.77
camera SetViewUp 0.9664 0.00605 0.256883
camera SetViewAngle 30
camera SetClippingRange 26 64
ren1 SetActiveCamera camera
# Add the actors to the renderer, set the background and size
#
ren1 AddActor actor
ren1 AddActor actor2
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 .
set threshold 50
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