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109 lines
2.4 KiB
109 lines
2.4 KiB
package require vtk
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package require vtkinteraction
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set file0 rgFile0.vtr
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set file1 rgFile1.vtr
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set file2 rgFile2.vtr
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# read in some grid data
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vtkRectilinearGridReader gridReader
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gridReader SetFileName "$VTK_DATA_ROOT/Data/RectGrid2.vtk"
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gridReader Update
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# extract to reduce extents of grid
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vtkExtractRectilinearGrid extract
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extract SetInputConnection [gridReader GetOutputPort]
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extract SetVOI 0 23 0 32 0 10
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extract Update
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# write just a piece (extracted piece) as well as the whole thing
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vtkXMLRectilinearGridWriter rgWriter
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rgWriter SetFileName $file0
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rgWriter SetInputConnection [extract GetOutputPort]
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rgWriter SetDataModeToAscii
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rgWriter Write
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rgWriter SetFileName $file1
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rgWriter SetInputConnection [gridReader GetOutputPort]
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rgWriter SetDataModeToAppended
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rgWriter SetNumberOfPieces 2
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rgWriter Write
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rgWriter SetFileName $file2
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rgWriter SetDataModeToBinary
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rgWriter SetWriteExtent 3 46 6 32 1 5
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rgWriter SetCompressor ""
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if {[rgWriter GetByteOrder]} {
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rgWriter SetByteOrder 0
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} else {
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rgWriter SetByteOrder 1
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}
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rgWriter Write
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# read the extracted grid
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vtkXMLRectilinearGridReader reader
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reader SetFileName $file0
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reader WholeSlicesOff
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reader Update
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vtkRectilinearGrid rg0
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rg0 DeepCopy [reader GetOutput]
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vtkDataSetMapper mapper0
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mapper0 SetInput rg0
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vtkActor actor0
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actor0 SetMapper mapper0
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# read the whole grid
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reader SetFileName $file1
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reader WholeSlicesOn
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reader Update
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vtkRectilinearGrid rg1
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rg1 DeepCopy [reader GetOutput]
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vtkDataSetMapper mapper1
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mapper1 SetInput rg1
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vtkActor actor1
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actor1 SetMapper mapper1
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actor1 SetPosition -1.5 3 0
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# read the partially written grid
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reader SetFileName $file2
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reader Update
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vtkDataSetMapper mapper2
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mapper2 SetInputConnection [reader GetOutputPort]
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vtkActor actor2
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actor2 SetMapper mapper2
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actor2 SetPosition 1.5 3 0
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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 actor0
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ren1 AddActor actor1
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ren1 AddActor actor2
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renWin SetSize 300 300
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iren Initialize
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renWin Render
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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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file delete -force $file0
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file delete -force $file1
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file delete -force $file2
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