#!/usr/bin/env python

# Image pipeline
image1 = vtk.vtkTIFFReader()
image1.SetFileName("" + str(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.
image1.SetOrientationType(4)
image1.Update()
#
# If the current directory is writable, then test the witers
#
if (catch.catch(globals(),"""channel = open(test.tmp, w)""") == 0):
    channel.close()
    file.delete("-force", test.tmp)
    piw = vtk.vtkPImageWriter()
    piw.SetInputConnection(image1.GetOutputPort())
    piw.SetFileName(piw.raw)
    piw.SetMemoryLimit(1)
    piw.Write()
    file.delete("-force", piw.raw)
    pass
viewer = vtk.vtkImageViewer()
viewer.SetInputConnection(image1.GetOutputPort())
viewer.SetColorWindow(255)
viewer.SetColorLevel(127.5)
viewer.Render()
# --- end of script --