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package require vtk
# Image pipeline
vtkImageReader2Factory createReader
set reader [createReader CreateImageReader2 "$VTK_DATA_ROOT/Data/beach.tif"]
$reader SetFileName "$VTK_DATA_ROOT/Data/beach.tif"
# "beach.tif" image contains ORIENTATION tag which is
# ORIENTATION_TOPLEFT (row 0 top, col 0 lhs) type. The TIFF
# reader parses this tag and sets the internal TIFF image
# orientation accordingly. To overwrite this orientation with a vtk
# convention of ORIENTATION_BOTLEFT (row 0 bottom, col 0 lhs ), invoke
# SetOrientationType method with parameter value of 4.
$reader SetOrientationType 4
vtkImageViewer viewer
viewer SetInputConnection [$reader GetOutputPort]
viewer SetColorWindow 256
viewer SetColorLevel 127.5
#make interface
viewer Render
$reader UnRegister viewer
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