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107 lines
3.3 KiB
107 lines
3.3 KiB
2 years ago
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package require vtk
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package require vtkinteraction
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# Simple volume rendering example.
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vtkSLCReader reader
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reader SetFileName "$VTK_DATA_ROOT/Data/sphere.slc"
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# Create transfer functions for opacity and color
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vtkPiecewiseFunction opacityTransferFunction
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opacityTransferFunction AddPoint 0 0.0
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opacityTransferFunction AddPoint 30 0.0
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opacityTransferFunction AddPoint 80 0.5
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opacityTransferFunction AddPoint 255 0.5
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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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# Create properties, mappers, volume actors, and ray cast function
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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 SetInterpolationTypeToLinear
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volumeProperty ShadeOn
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vtkVolumeRayCastCompositeFunction compositeFunction
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vtkRenderer ren1
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vtkRenderWindow renWin
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renWin AddRenderer ren1
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renWin SetSize 600 300
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vtkRenderWindowInteractor iren
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iren SetRenderWindow renWin
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ren1 SetBackground 0.1 0.2 0.4
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for { set i 0 } { $i < 2 } { incr i } {
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for { set j 0 } { $j < 4 } { incr j } {
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vtkVolumeRayCastMapper volumeMapper_${i}_${j}
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volumeMapper_${i}_${j} SetInputConnection [reader GetOutputPort]
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volumeMapper_${i}_${j} SetVolumeRayCastFunction compositeFunction
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volumeMapper_${i}_${j} SetSampleDistance 0.4
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volumeMapper_${i}_${j} CroppingOn
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volumeMapper_${i}_${j} SetCroppingRegionPlanes 17 33 17 33 17 33
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vtkVolume volume_${i}_${j}
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volume_${i}_${j} SetMapper volumeMapper_${i}_${j}
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volume_${i}_${j} SetProperty volumeProperty
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vtkTransform userMatrix_${i}_${j}
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userMatrix_${i}_${j} PostMultiply
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userMatrix_${i}_${j} Identity
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userMatrix_${i}_${j} Translate -25 -25 -25
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if { $i == 0 } {
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userMatrix_${i}_${j} RotateX [expr $j*87 + 23]
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userMatrix_${i}_${j} RotateY 16
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} else {
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userMatrix_${i}_${j} RotateX 27
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userMatrix_${i}_${j} RotateY [expr $j*87 + 19]
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}
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userMatrix_${i}_${j} Translate [expr $j*55 + 25] [expr $i*55 + 25] 0
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volume_${i}_${j} SetUserTransform userMatrix_${i}_${j}
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ren1 AddViewProp volume_${i}_${j}
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}
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}
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volumeMapper_0_0 SetCroppingRegionFlagsToSubVolume
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volumeMapper_0_1 SetCroppingRegionFlagsToCross
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volumeMapper_0_2 SetCroppingRegionFlagsToInvertedCross
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volumeMapper_0_3 SetCroppingRegionFlags 24600
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volumeMapper_1_0 SetCroppingRegionFlagsToFence
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volumeMapper_1_1 SetCroppingRegionFlagsToInvertedFence
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volumeMapper_1_2 SetCroppingRegionFlags 1
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volumeMapper_1_3 SetCroppingRegionFlags 67117057
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[ren1 GetCullers] InitTraversal
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set culler [[ren1 GetCullers] GetNextItem]
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$culler SetSortingStyleToBackToFront
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ren1 ResetCamera
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[ren1 GetActiveCamera] Zoom 3.0
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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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