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65 lines
1.8 KiB
65 lines
1.8 KiB
package require vtk
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package require vtkinteraction
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# This example demonstrates the use of the linear extrusion filter and
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# the USA state outline vtk dataset. It also tests the triangulation filter.
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# get the interactor ui
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# Create the RenderWindow, Renderer and both Actors
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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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# create pipeline - read data
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#
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vtkPolyDataReader reader
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reader SetFileName "$VTK_DATA_ROOT/Data/usa.vtk"
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# okay, now create some extrusion filters with actors for each US state
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vtkMath math
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for {set i 0} {$i < 51} {incr i} {
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vtkGeometryFilter extractCell$i
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extractCell$i SetInputConnection [reader GetOutputPort]
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extractCell$i CellClippingOn
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extractCell$i SetCellMinimum $i
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extractCell$i SetCellMaximum $i
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vtkTriangleFilter tf$i
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tf$i SetInputConnection [extractCell$i GetOutputPort]
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vtkLinearExtrusionFilter extrude$i
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extrude$i SetInputConnection [tf$i GetOutputPort]
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extrude$i SetExtrusionType 1
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extrude$i SetVector 0 0 1
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extrude$i CappingOn
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extrude$i SetScaleFactor [math Random 1 10]
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vtkPolyDataMapper mapper$i
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mapper$i SetInputConnection [extrude$i GetOutputPort]
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vtkActor actor$i
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actor$i SetMapper mapper$i
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[actor$i GetProperty] SetColor [math Random 0 1] \
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[math Random 0 1] [math Random 0 1]
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ren1 AddActor actor$i
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}
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ren1 SetBackground 1 1 1
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renWin SetSize 500 250
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set cam1 [ren1 GetActiveCamera]
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$cam1 SetClippingRange 10.2299 511.497
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$cam1 SetPosition -119.669 -25.5502 79.0198
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$cam1 SetFocalPoint -115.96 41.6709 1.99546
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$cam1 SetViewUp -0.0013035 0.753456 0.657497
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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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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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