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37 lines
986 B
37 lines
986 B
package require vtk
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# This example demonstrates how to permute an image with vtkImageReslice.
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# The advantage of using vtkImageReslice for this (rather than
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# vtkImagePermute) is that you can specify negative or even oblique axes,
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# and you can resample the image at the same time.
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vtkImageReader reader
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reader ReleaseDataFlagOff
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reader SetDataByteOrderToLittleEndian
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reader SetDataExtent 0 63 0 63 1 93
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reader SetDataSpacing 3.2 3.2 1.5
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reader SetFilePrefix "$VTK_DATA_ROOT/Data/headsq/quarter"
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reader SetDataMask 0x7fff
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vtkImageReslice reslice
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reslice SetInputConnection [reader GetOutputPort]
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# specify the new axes in terms of the original axes
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reslice SetResliceAxesDirectionCosines 0 +1 0 0 0 -1 -1 0 0
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# resample the image to enlarge & to get the aspect right
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reslice SetOutputSpacing 1.0 1.0 1.0
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vtkImageViewer viewer
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viewer SetInputConnection [reslice GetOutputPort]
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viewer SetZSlice 100
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viewer SetColorWindow 2000
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viewer SetColorLevel 1000
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viewer Render
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