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68 lines
1.7 KiB
68 lines
1.7 KiB
package require vtk
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package require vtkinteraction
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# Quadric definition
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vtkQuadric quadric
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quadric SetCoefficients .5 1 .2 0 .1 0 0 .2 0 0
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vtkSampleFunction sample
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sample SetSampleDimensions 30 30 30
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sample SetImplicitFunction quadric
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sample Update
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#sample Print
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sample ComputeNormalsOff
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# Extract cells that contains isosurface of interest
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vtkConnectivityFilter conn
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conn SetInputConnection [sample GetOutputPort]
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conn ScalarConnectivityOn
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conn SetScalarRange 0.6 0.6
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conn SetExtractionModeToCellSeededRegions
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conn AddSeed 105
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# Create a surface
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vtkContourFilter contours
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contours SetInputConnection [conn GetOutputPort]
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# contours SetInputConnection [sample GetOutputPort]
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contours GenerateValues 5 0.0 1.2
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vtkDataSetMapper contMapper
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# contMapper SetInputConnection [contours GetOutputPort]
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contMapper SetInputConnection [conn GetOutputPort]
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contMapper SetScalarRange 0.0 1.2
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vtkActor contActor
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contActor SetMapper contMapper
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# Create outline
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vtkOutlineFilter outline
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outline SetInputConnection [sample GetOutputPort]
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vtkPolyDataMapper outlineMapper
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outlineMapper SetInputConnection [outline GetOutputPort]
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vtkActor outlineActor
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outlineActor SetMapper outlineMapper
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eval [outlineActor GetProperty] SetColor 0 0 0
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# Graphics
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# create a window to render into
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vtkRenderer ren1
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vtkRenderWindow renWin
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renWin AddRenderer ren1
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# create a renderer
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# interactiver renderer catches mouse events (optional)
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vtkRenderWindowInteractor iren
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iren SetRenderWindow renWin
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ren1 SetBackground 1 1 1
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ren1 AddActor contActor
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ren1 AddActor outlineActor
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ren1 ResetCamera
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[ren1 GetActiveCamera] Zoom 1.4
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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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