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package require vtk
package require vtkinteraction
package require vtktesting
set VTK_VARY_RADIUS_BY_VECTOR 2
# create pipeline
#
vtkDataSetReader reader
reader SetFileName "$VTK_DATA_ROOT/Data/RectGrid2.vtk"
reader Update
vtkCastToConcrete toRectilinearGrid
toRectilinearGrid SetInputConnection [reader GetOutputPort]
toRectilinearGrid Update
vtkRectilinearGridGeometryFilter plane
plane SetInputData [toRectilinearGrid GetRectilinearGridOutput]
plane SetExtent 0 100 0 100 15 15
vtkWarpVector warper
warper SetInputConnection [plane GetOutputPort]
warper SetScaleFactor 0.05
vtkDataSetMapper planeMapper
planeMapper SetInputConnection [warper GetOutputPort]
planeMapper SetScalarRange 0.197813 0.710419
vtkActor planeActor
planeActor SetMapper planeMapper
vtkPlane cutPlane
eval cutPlane SetOrigin [[reader GetOutput] GetCenter]
cutPlane SetNormal 1 0 0
vtkCutter planeCut
planeCut SetInputData [toRectilinearGrid GetRectilinearGridOutput]
planeCut SetCutFunction cutPlane
vtkDataSetMapper cutMapper
cutMapper SetInputConnection [planeCut GetOutputPort]
eval cutMapper SetScalarRange \
[[[[reader GetOutput] GetPointData] GetScalars] GetRange]
vtkActor cutActor
cutActor SetMapper cutMapper
vtkContourFilter iso
iso SetInputData [toRectilinearGrid GetRectilinearGridOutput]
iso SetValue 0 0.7
vtkPolyDataNormals normals
normals SetInputConnection [iso GetOutputPort]
normals SetFeatureAngle 45
vtkPolyDataMapper isoMapper
isoMapper SetInputConnection [normals GetOutputPort]
isoMapper ScalarVisibilityOff
vtkActor isoActor
isoActor SetMapper isoMapper
eval [isoActor GetProperty] SetColor $bisque
eval [isoActor GetProperty] SetRepresentationToWireframe
vtkStreamTracer streamer
streamer SetInputConnection [reader GetOutputPort]
streamer SetStartPosition -1.2 -0.1 1.3
streamer SetMaximumPropagation 500
streamer SetInitialIntegrationStep 0.05
streamer SetIntegrationDirectionToBoth
vtkTubeFilter streamTube
streamTube SetInputConnection [streamer GetOutputPort]
streamTube SetRadius 0.025
streamTube SetNumberOfSides 6
streamTube SetVaryRadius $VTK_VARY_RADIUS_BY_VECTOR
vtkPolyDataMapper mapStreamTube
mapStreamTube SetInputConnection [streamTube GetOutputPort]
eval mapStreamTube SetScalarRange \
[[[[reader GetOutput] GetPointData] GetScalars] GetRange]
vtkActor streamTubeActor
streamTubeActor SetMapper mapStreamTube
[streamTubeActor GetProperty] BackfaceCullingOn
vtkOutlineFilter outline
outline SetInputData [toRectilinearGrid GetRectilinearGridOutput]
vtkPolyDataMapper outlineMapper
outlineMapper SetInputConnection [outline GetOutputPort]
vtkActor outlineActor
outlineActor SetMapper outlineMapper
eval [outlineActor GetProperty] SetColor $black
# Graphics stuff
# Create the RenderWindow, Renderer and both Actors
#
vtkRenderer ren1
vtkRenderWindow renWin
renWin SetMultiSamples 0
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
# Add the actors to the renderer, set the background and size
#
ren1 AddActor outlineActor
ren1 AddActor planeActor
ren1 AddActor cutActor
ren1 AddActor isoActor
ren1 AddActor streamTubeActor
ren1 SetBackground 1 1 1
renWin SetSize 400 400
set cam1 [ren1 GetActiveCamera]
$cam1 SetClippingRange 3.76213 10.712
$cam1 SetFocalPoint -0.0842503 -0.136905 0.610234
$cam1 SetPosition 2.53813 2.2678 -5.22172
$cam1 SetViewUp -0.241047 0.930635 0.275343
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 .
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