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69 lines
2.0 KiB
69 lines
2.0 KiB
2 years ago
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# This is a simple volume rendering example that
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# uses a vtkVolumeRayCast mapper
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package require vtk
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package require vtkinteraction
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# Create the standard renderer, render window
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# and interactor
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vtkRenderer ren1
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vtkRenderWindow renWin
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renWin AddRenderer ren1
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vtkRenderWindowInteractor iren
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iren SetRenderWindow renWin
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# Create the reader for the data
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vtkStructuredPointsReader reader
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reader SetFileName "$VTK_DATA_ROOT/Data/ironProt.vtk"
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# Create transfer mapping scalar value to opacity
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vtkPiecewiseFunction opacityTransferFunction
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opacityTransferFunction AddPoint 20 0.0
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opacityTransferFunction AddPoint 255 0.2
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# Create transfer mapping scalar value to color
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vtkColorTransferFunction colorTransferFunction
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colorTransferFunction AddRGBPoint 0.0 0.0 0.0 0.0
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colorTransferFunction AddRGBPoint 64.0 1.0 0.0 0.0
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colorTransferFunction AddRGBPoint 128.0 0.0 0.0 1.0
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colorTransferFunction AddRGBPoint 192.0 0.0 1.0 0.0
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colorTransferFunction AddRGBPoint 255.0 0.0 0.2 0.0
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# The property describes how the data will look
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vtkVolumeProperty volumeProperty
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volumeProperty SetColor colorTransferFunction
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volumeProperty SetScalarOpacity opacityTransferFunction
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volumeProperty ShadeOn
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volumeProperty SetInterpolationTypeToLinear
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# The mapper / ray cast function know how to render the data
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vtkVolumeRayCastCompositeFunction compositeFunction
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vtkVolumeRayCastMapper volumeMapper
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volumeMapper SetVolumeRayCastFunction compositeFunction
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volumeMapper SetInputConnection [reader GetOutputPort]
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# The volume holds the mapper and the property and
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# can be used to position/orient the volume
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vtkVolume volume
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volume SetMapper volumeMapper
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volume SetProperty volumeProperty
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ren1 AddVolume volume
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ren1 SetBackground 1 1 1
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renWin SetSize 600 600
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renWin Render
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proc TkCheckAbort {} {
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set foo [renWin GetEventPending]
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if {$foo != 0} {renWin SetAbortRender 1}
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}
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renWin AddObserver AbortCheckEvent {TkCheckAbort}
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iren AddObserver UserEvent {wm deiconify .vtkInteract}
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iren Initialize
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wm withdraw .
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