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ksteube |
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######################################################## |
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# |
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# Copyright (c) 2003-2008 by University of Queensland |
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# Earth Systems Science Computational Center (ESSCC) |
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# http://www.uq.edu.au/esscc |
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# |
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# Primary Business: Queensland, Australia |
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# Licensed under the Open Software License version 3.0 |
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# http://www.opensource.org/licenses/osl-3.0.php |
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# |
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######################################################## |
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__copyright__="""Copyright (c) 2003-2008 by University of Queensland |
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Earth Systems Science Computational Center (ESSCC) |
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http://www.uq.edu.au/esscc |
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Primary Business: Queensland, Australia""" |
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__license__="""Licensed under the Open Software License version 3.0 |
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http://www.opensource.org/licenses/osl-3.0.php""" |
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__url__="http://www.uq.edu.au/esscc/escript-finley" |
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ksteube |
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""" |
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jongui |
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@var __author__: name of author |
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@var __copyright__: copyrights |
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@var __license__: licence agreement |
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@var __url__: url entry point on documentation |
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@var __version__: version |
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@var __date__: date of the version |
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ksteube |
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""" |
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jongui |
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__author__="John Ngui, john.ngui@uq.edu.au" |
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ksteube |
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import vtk |
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from constant import ImageFormat |
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class ImageReader: |
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""" |
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Class that defines an image reader. An image reader is used to read |
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data from an image in a variety of formats. |
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""" |
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def __init__(self, format): |
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""" |
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Initialise the image reader. |
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@type format: L{ImageFormat <constant.ImageFormat>} constant |
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@param format: Format of the image |
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""" |
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self.__format = format |
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self.__vtk_image_reader = self.__getImageReader() |
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def __getImageReader(self): |
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""" |
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Return the corresponding image reader based on the supplied image |
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format. |
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@rtype: vtkImageReader2 (i.e. vtkJPEGReader, etc) |
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@return: Image reader |
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""" |
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if(self.__format == ImageFormat.JPG): |
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return vtk.vtkJPEGReader() |
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elif(self.__format == ImageFormat.BMP): |
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return vtk.vtkBMPReader() |
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elif(self.__format == ImageFormat.PNM): |
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return vtk.vtkPNMReader() |
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elif(self.__format == ImageFormat.PNG): |
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return vtk.vtkPNGReader() |
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elif(self.__format == ImageFormat.TIF): |
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return vtk.vtkTIFFReader() |
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def setImageName(self, image_name): |
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""" |
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Set the image file name to be read. |
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@type image_name: String |
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jongui |
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@param image_name: Image name from which image data is to be read |
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ksteube |
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""" |
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self.__vtk_image_reader.SetFileName(image_name) |
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jongui |
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def _getImageReaderOutput(self): |
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ksteube |
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""" |
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Return the output of the image reader. |
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@rtype: vtkImageData |
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@return: Image data |
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""" |
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return self.__vtk_image_reader.GetOutput() |
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