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package require vtk
package require vtkinteraction
vtkRenderer ren1
vtkRenderWindow renWin
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
# read data
#
vtkGenericEnSightReader reader
# Make sure all algorithms use the composite data pipeline
vtkCompositeDataPipeline cdp
reader SetDefaultExecutivePrototype cdp
reader SetCaseFileName "$VTK_DATA_ROOT/Data/EnSight/office_bin.case"
reader Update
vtkStructuredGridOutlineFilter outline
# outline SetInputConnection [reader GetOutputPort]
outline SetInputData [[reader GetOutput] GetBlock 0]
vtkPolyDataMapper mapOutline
mapOutline SetInputConnection [outline GetOutputPort]
vtkActor outlineActor
outlineActor SetMapper mapOutline
[outlineActor GetProperty] SetColor 0 0 0
# Create source for streamtubes
vtkStreamPoints streamer
# streamer SetInputConnection [reader GetOutputPort]
streamer SetInputData [[reader GetOutput] GetBlock 0]
streamer SetStartPosition 0.1 2.1 0.5
streamer SetMaximumPropagationTime 500
streamer SetTimeIncrement 0.5
streamer SetIntegrationDirectionToForward
vtkConeSource cone
cone SetResolution 8
vtkGlyph3D cones
cones SetInputConnection [streamer GetOutputPort]
cones SetSourceConnection [cone GetOutputPort]
cones SetScaleFactor 0.9
cones SetScaleModeToScaleByVector
vtkPolyDataMapper mapCones
mapCones SetInputConnection [cones GetOutputPort]
# eval mapCones SetScalarRange [[reader GetOutput] GetScalarRange]
eval mapCones SetScalarRange [[[reader GetOutput] GetBlock 0] GetScalarRange]
vtkActor conesActor
conesActor SetMapper mapCones
ren1 AddActor outlineActor
ren1 AddActor conesActor
ren1 SetBackground 0.4 0.4 0.5
renWin SetSize 300 300
iren AddObserver UserEvent {wm deiconify .vtkInteract}
iren Initialize
# interact with data
wm withdraw .
reader SetDefaultExecutivePrototype {}
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