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74 lines
2.0 KiB
74 lines
2.0 KiB
2 years ago
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package require vtk
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package require vtkinteraction
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# get the interactor ui
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## Graphics stuff
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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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vtkPLOT3DReader pl3d
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pl3d SetXYZFileName "$VTK_DATA_ROOT/Data/combxyz.bin"
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pl3d SetQFileName "$VTK_DATA_ROOT/Data/combq.bin"
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pl3d SetScalarFunctionNumber 100
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pl3d SetVectorFunctionNumber 202
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pl3d Update
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set range [[[[pl3d GetOutput] GetPointData] GetScalars] GetRange]
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set min [lindex $range 0]
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set max [lindex $range 1]
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set value [expr ($min + $max) / 2.0]
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vtkContourFilter cf
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cf SetInputConnection [pl3d GetOutputPort]
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cf SetValue 0 $value
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cf UseScalarTreeOn
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set numberOfContours 5
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set epsilon [expr double($max - $min) / double($numberOfContours * 10)]
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set min [expr $min + $epsilon]
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set max [expr $max - $epsilon]
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for {set i 1} { $i <= $numberOfContours } {incr i} {
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cf SetValue 0 [expr $min + (($i - 1) / double($numberOfContours - 1) )*($max - $min)]
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cf Update
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vtkPolyData pd$i
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pd$i CopyStructure [cf GetOutput]
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[pd$i GetPointData] DeepCopy [[cf GetOutput] GetPointData]
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vtkPolyDataMapper mapper$i
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mapper$i SetInput pd$i
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eval mapper$i SetScalarRange \
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[[[[pl3d GetOutput] GetPointData] GetScalars] GetRange]
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vtkActor actor$i
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actor$i AddPosition 0 [expr $i * 12] 0
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actor$i SetMapper mapper$i
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ren1 AddActor actor$i
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}
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# Add the actors to the renderer, set the background and size
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#
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ren1 SetBackground .3 .3 .3
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renWin SetSize 450 150
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set cam1 [ren1 GetActiveCamera]
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[ren1 GetActiveCamera] SetPosition -36.3762 32.3855 51.3652
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[ren1 GetActiveCamera] SetFocalPoint 8.255 33.3861 29.7687
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[ren1 GetActiveCamera] SetViewAngle 30
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[ren1 GetActiveCamera] SetViewUp 0 0 1
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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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