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83 lines
2.5 KiB
83 lines
2.5 KiB
# load the necessary VTK libraries.
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package require vtk
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package require vtkinteraction
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package require vtktesting
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# This example demonstrates how to use Tcl/Tk in a simple GUI to control
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# the color of the spikes on the mace. The spikes are a separate actor so
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# the actor's property via the SetColor() method is manipulated.
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# Create a sphere source and actor. This forms the head of the mace.
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#
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vtkSphereSource sphere
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vtkPolyDataMapper sphereMapper
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sphereMapper SetInputConnection [sphere GetOutputPort]
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vtkLODActor sphereActor
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sphereActor SetMapper sphereMapper
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# Create the spikes using a cone source. The cones are glyphed onto the
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# the mace head using the sphere normals.
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#
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vtkConeSource cone
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vtkGlyph3D glyph
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glyph SetInputConnection [sphere GetOutputPort]
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glyph SetSource [cone GetOutput]
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glyph SetVectorModeToUseNormal
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glyph SetScaleModeToScaleByVector
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glyph SetScaleFactor 0.25
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vtkPolyDataMapper spikeMapper
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spikeMapper SetInputConnection [glyph GetOutputPort]
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vtkLODActor spikeActor
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spikeActor SetMapper spikeMapper
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# Create the RenderWindow, Renderer and both Actors
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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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# Add the actors to the renderer, set the background and size.
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#
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ren1 AddActor sphereActor
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ren1 AddActor spikeActor
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ren1 SetBackground 0.1 0.2 0.4
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renWin SetSize 300 300
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# An observer is added to allow the invocation of the interaction Tk GUI.
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# When the 'u' key is pressed (which is translated into the UserEvent)
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# then the corresponding Tcl proc is invoked.
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#
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iren AddObserver UserEvent {wm deiconify .vtkInteract}
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ren1 ResetCamera
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[ren1 GetActiveCamera] Zoom 1.4
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iren Initialize
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# Create Tk user interface. This is a simple frame with three sliders
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# to control the R-G-B components.
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#
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frame .f
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label .f.l -text "Spike Color"
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scale .f.r -from 0 -to 100 -background #f00 \
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-orient horizontal -command SetColor
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scale .f.g -from 0 -to 100 -background #0f0 \
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-orient horizontal -command SetColor
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scale .f.b -from 0 -to 100 -background #00f \
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-orient horizontal -command SetColor
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set color [[spikeActor GetProperty] GetColor]
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.f.r set [expr [lindex $color 0] * 100.0]
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.f.g set [expr [lindex $color 1] * 100.0]
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.f.b set [expr [lindex $color 2] * 100.0]
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pack .f.l .f.r .f.g .f.b -side top
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pack .f
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proc SetColor {value} {
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[spikeActor GetProperty] SetColor [expr [.f.r get]/100.0] \
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[expr [.f.g get]/100.0] \ [expr [.f.b get]/100.0]
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renWin Render
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}
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