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76 lines
2.0 KiB
76 lines
2.0 KiB
package require vtk
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package require vtkinteraction
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# create pipeline - rectilinear grid
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#
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vtkRectilinearGridReader rgridReader
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rgridReader SetFileName "$VTK_DATA_ROOT/Data/RectGrid2.vtk"
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vtkOutlineFilter outline
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outline SetInputConnection [rgridReader GetOutputPort]
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vtkPolyDataMapper mapper
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mapper SetInputConnection [outline GetOutputPort]
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vtkActor actor
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actor SetMapper mapper
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rgridReader Update
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vtkExtractRectilinearGrid extract1
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extract1 SetInputConnection [rgridReader GetOutputPort]
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#extract1 SetVOI 0 46 0 32 0 10
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extract1 SetVOI 23 40 16 30 9 9
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extract1 SetSampleRate 2 2 1
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extract1 IncludeBoundaryOn
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extract1 Update
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vtkDataSetSurfaceFilter surf1
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surf1 SetInputConnection [extract1 GetOutputPort]
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vtkTriangleFilter tris
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tris SetInputConnection [surf1 GetOutputPort]
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vtkPolyDataMapper mapper1
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mapper1 SetInputConnection [tris GetOutputPort]
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eval mapper1 SetScalarRange [[extract1 GetOutput] GetScalarRange]
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vtkActor actor1
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actor1 SetMapper mapper1
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# write out a rect grid
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# write to the temp directory if possible, otherwise use .
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set dir "."
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if {[info commands "rtTester"] == "rtTester"} {
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set dir [rtTester GetTempDirectory]
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}
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# make sure the directory is writeable first
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if {[catch {set channel [open "$dir/test.tmp" "w"]}] == 0 } {
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close $channel
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file delete -force "$dir/test.tmp"
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vtkRectilinearGridWriter rectWriter
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rectWriter SetInputConnection [extract1 GetOutputPort]
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rectWriter SetFileName "$dir/rect.tmp"
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rectWriter Write
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# delete the file
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file delete -force "$dir/rect.tmp"
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}
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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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#ren1 AddActor actor
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ren1 AddActor actor1
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renWin SetSize 340 400
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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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