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93 lines
2.5 KiB
93 lines
2.5 KiB
package require vtk
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package require vtkinteraction
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set res 6
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vtkPlaneSource plane
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plane SetResolution $res $res
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vtkElevationFilter colors
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colors SetInputConnection [plane GetOutputPort]
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colors SetLowPoint -0.25 -0.25 -0.25
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colors SetHighPoint 0.25 0.25 0.25
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vtkPolyDataMapper planeMapper
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planeMapper SetInput [colors GetPolyDataOutput]
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vtkActor planeActor
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planeActor SetMapper planeMapper
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[planeActor GetProperty] SetRepresentationToWireframe
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# create simple poly data so we can apply glyph
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vtkSuperquadricSource squad
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vtkElevationFilter squadColors
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squadColors SetInputConnection [squad GetOutputPort]
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squadColors SetLowPoint -0.25 -0.25 -0.25
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squadColors SetHighPoint 0.25 0.25 0.25
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vtkCastToConcrete squadCaster
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squadCaster SetInputConnection [squadColors GetOutputPort]
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vtkTransform squadTransform
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vtkTransformPolyDataFilter transformSquad
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transformSquad SetInput [squadColors GetPolyDataOutput]
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transformSquad SetTransform squadTransform
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# procedure for generating glyphs
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proc Glyph {} {
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global res
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set ptId [glypher GetPointId]
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set pd [glypher GetPointData]
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set xyz [glypher GetPoint]
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set x [lindex $xyz 0]
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set y [lindex $xyz 1]
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set length [[glypher GetInput 0] GetLength]
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set scale [expr $length / (2.0*$res)]
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squadTransform Identity
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if { $x == $y } {
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squad ToroidalOn
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eval squadTransform Translate $xyz
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squadTransform RotateX 90
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} else {
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eval squadTransform Translate $xyz
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squad ToroidalOff
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}
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squadTransform Scale $scale $scale $scale
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squad SetPhiRoundness [expr abs($x)*5.0]
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squad SetThetaRoundness [expr abs($y)*5.0]
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}
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vtkProgrammableGlyphFilter glypher
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glypher SetInputConnection [colors GetOutputPort]
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glypher SetSource [transformSquad GetOutput]
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glypher SetGlyphMethod Glyph
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glypher SetColorModeToColorBySource
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vtkPolyDataMapper glyphMapper
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glyphMapper SetInputConnection [glypher GetOutputPort]
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vtkActor glyphActor
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glyphActor SetMapper glyphMapper
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# Create the rendering 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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ren1 AddActor planeActor
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ren1 AddActor glyphActor
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ren1 SetBackground 1 1 1
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renWin SetSize 450 450
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renWin Render
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[ren1 GetActiveCamera] Zoom 1.3
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# Get handles to some useful objects
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#
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iren AddObserver UserEvent {wm deiconify .vtkInteract}
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renWin Render
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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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