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81 lines
2.4 KiB
81 lines
2.4 KiB
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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iren SetDesiredUpdateRate 3
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# Create a small mesh. The coarser and more opaque the mesh, the easier it
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# is to see rendering errors.
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vtkImageMandelbrotSource input
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input SetWholeExtent 0 2 0 2 0 2
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input SetSizeCX 2 2 2 2
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input SetMaximumNumberOfIterations 10
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# make sure we have only tetrahedra
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vtkDataSetTriangleFilter trifilter
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trifilter SetInputConnection [input GetOutputPort]
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# Create transfer mapping scalar value to opacity
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vtkPiecewiseFunction opacityTransferFunction
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opacityTransferFunction AddPoint 0 0.0
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opacityTransferFunction AddPoint 10 1.0
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# Create transfer mapping scalar value to color
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vtkColorTransferFunction colorTransferFunction
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colorTransferFunction AddRGBPoint 0 1.0 0.0 1.0
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colorTransferFunction AddRGBPoint 2 0.0 0.0 1.0
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colorTransferFunction AddRGBPoint 4 0.0 1.0 1.0
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colorTransferFunction AddRGBPoint 6 0.0 1.0 0.0
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colorTransferFunction AddRGBPoint 8 1.0 1.0 0.0
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colorTransferFunction AddRGBPoint 10 1.0 0.0 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 ShadeOff
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volumeProperty SetInterpolationTypeToLinear
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volumeProperty SetScalarOpacityUnitDistance 0.75
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# The mapper / ray cast function / ray integrator know how to render the data
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vtkUnstructuredGridVolumeRayCastMapper volumeMapper
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volumeMapper SetInputConnection [trifilter GetOutputPort]
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vtkUnstructuredGridPreIntegration rayIntegrator
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volumeMapper SetRayIntegrator rayIntegrator
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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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renWin SetSize 300 300
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[ren1 GetActiveCamera] Azimuth 20.0
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[ren1 GetActiveCamera] Elevation 15.0
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[ren1 GetActiveCamera] Zoom 1.5
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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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