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108 lines
2.6 KiB
108 lines
2.6 KiB
package require vtk
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package require vtkinteraction
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# Create renderer stuff
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#
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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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# Pipeline stuff
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#
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vtkSuperquadricSource torus
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torus SetCenter 0.0 0.0 0.0
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torus SetScale 1.0 1.0 1.0
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torus SetPhiResolution 64
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torus SetThetaResolution 64
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torus SetPhiRoundness 1.0
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torus SetThetaRoundness 1.0
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torus SetThickness 0.5
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torus SetSize 0.5
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torus SetToroidal 1
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# The quadric is made of strips, so pass it through a triangle filter as
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# the curvature filter only operates on polys
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vtkTriangleFilter tri
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tri SetInputConnection [torus GetOutputPort]
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# The quadric has nasty discontinuities from the way the edges are generated
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# so let's pass it though a CleanPolyDataFilter and merge any points which
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# are coincident, or very close
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vtkCleanPolyData cleaner
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cleaner SetInputConnection [tri GetOutputPort]
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cleaner SetTolerance 0.005
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vtkCurvatures curve1
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curve1 SetInputConnection [cleaner GetOutputPort]
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curve1 SetCurvatureTypeToGaussian
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vtkCurvatures curve2
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curve2 SetInputConnection [cleaner GetOutputPort]
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curve2 SetCurvatureTypeToMean
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vtkLookupTable lut1
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lut1 SetNumberOfColors 256
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lut1 SetHueRange 0.15 1.0
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lut1 SetSaturationRange 1.0 1.0
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lut1 SetValueRange 1.0 1.0
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lut1 SetAlphaRange 1.0 1.0
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lut1 SetRange -20 20
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vtkLookupTable lut2
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lut2 SetNumberOfColors 256
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lut2 SetHueRange 0.15 1.0
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lut2 SetSaturationRange 1.0 1.0
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lut2 SetValueRange 1.0 1.0
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lut2 SetAlphaRange 1.0 1.0
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lut2 SetRange 0 4
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vtkPolyDataMapper cmapper1
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cmapper1 SetInputConnection [curve1 GetOutputPort]
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cmapper1 SetLookupTable lut1
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cmapper1 SetUseLookupTableScalarRange 1
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vtkPolyDataMapper cmapper2
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cmapper2 SetInputConnection [curve2 GetOutputPort]
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cmapper2 SetLookupTable lut2
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cmapper2 SetUseLookupTableScalarRange 1
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vtkActor cActor1
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cActor1 SetMapper cmapper1
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cActor1 SetPosition -0.5 0.0 0.0
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vtkActor cActor2
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cActor2 SetMapper cmapper2
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cActor2 SetPosition 0.5 0.0 0.0
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# Add the actors to the renderer
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#
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ren1 AddActor cActor1
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ren1 AddActor cActor2
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ren1 SetBackground 0.5 0.5 0.5
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renWin SetSize 300 200
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vtkCamera camera
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ren1 SetActiveCamera camera
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camera SetPosition 0.0 2.0 2.1
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camera SetFocalPoint 0.0 0.0 0.0
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camera SetViewAngle 30
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ren1 ResetCameraClippingRange
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iren Initialize
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# render the image
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#
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iren AddObserver UserEvent {wm deiconify .vtkInteract}
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# prevent the tk window from showing up then start the event loop
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wm withdraw .
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renWin Render
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